./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label18.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_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/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_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label18.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/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_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/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 d08db41ae0d7ec8078cc06035e9e84ddb6f4cbeccb0dd0eb818a13f85c4c66c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:53:13,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:53:13,545 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:53:13,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:53:13,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:53:13,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:53:13,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:53:13,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:53:13,572 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:53:13,572 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:53:13,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:53:13,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:53:13,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:53:13,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:53:13,573 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:53:13,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:53:13,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:53:13,573 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:53:13,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:53:13,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:53:13,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:53:13,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:53:13,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:53:13,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:53:13,574 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:53:13,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:53:13,574 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:53:13,574 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:53:13,574 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:53:13,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:53:13,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:53:13,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:53:13,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:53:13,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:53:13,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:53:13,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:53:13,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:53:13,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:53:13,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:53:13,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:53:13,575 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:53:13,575 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:53:13,575 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:53:13,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:53:13,576 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:53:13,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:53:13,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:53:13,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:53:13,576 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_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/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 -> d08db41ae0d7ec8078cc06035e9e84ddb6f4cbeccb0dd0eb818a13f85c4c66c1 [2024-12-02 10:53:13,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:53:13,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:53:13,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:53:13,796 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:53:13,796 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:53:13,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/eca-rers2012/Problem03_label18.c [2024-12-02 10:53:16,611 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/data/b4c79748d/d8fef2c83b55470db4c7390f19c877f1/FLAG922a05772 [2024-12-02 10:53:16,993 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:53:16,994 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/sv-benchmarks/c/eca-rers2012/Problem03_label18.c [2024-12-02 10:53:17,011 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/data/b4c79748d/d8fef2c83b55470db4c7390f19c877f1/FLAG922a05772 [2024-12-02 10:53:17,215 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/data/b4c79748d/d8fef2c83b55470db4c7390f19c877f1 [2024-12-02 10:53:17,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:53:17,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:53:17,219 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:53:17,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:53:17,223 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:53:17,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:17,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f6f6d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17, skipping insertion in model container [2024-12-02 10:53:17,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:17,280 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:53:17,718 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_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/sv-benchmarks/c/eca-rers2012/Problem03_label18.c[61636,61649] [2024-12-02 10:53:17,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:53:17,757 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:53:17,959 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_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/sv-benchmarks/c/eca-rers2012/Problem03_label18.c[61636,61649] [2024-12-02 10:53:17,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:53:17,982 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:53:17,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17 WrapperNode [2024-12-02 10:53:17,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:53:17,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:53:17,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:53:17,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:53:17,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,098 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2024-12-02 10:53:18,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:53:18,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:53:18,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:53:18,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:53:18,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,123 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,151 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 10:53:18,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,193 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:53:18,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:53:18,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:53:18,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:53:18,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (1/1) ... [2024-12-02 10:53:18,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:53:18,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:53:18,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:53:18,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:53:18,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:53:18,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:53:18,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:53:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:53:18,402 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:53:18,405 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:53:20,608 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-12-02 10:53:20,608 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:53:20,626 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:53:20,627 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 10:53:20,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:53:20 BoogieIcfgContainer [2024-12-02 10:53:20,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:53:20,630 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:53:20,630 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:53:20,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:53:20,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:53:17" (1/3) ... [2024-12-02 10:53:20,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bd72a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:53:20, skipping insertion in model container [2024-12-02 10:53:20,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:53:17" (2/3) ... [2024-12-02 10:53:20,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bd72a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:53:20, skipping insertion in model container [2024-12-02 10:53:20,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:53:20" (3/3) ... [2024-12-02 10:53:20,638 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem03_label18.c [2024-12-02 10:53:20,656 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:53:20,659 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem03_label18.c that has 1 procedures, 302 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 10:53:20,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:53:20,741 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;@97b12a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:53:20,741 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:53:20,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 10:53:20,763 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:20,764 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1] [2024-12-02 10:53:20,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:20,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:20,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2057722499, now seen corresponding path program 1 times [2024-12-02 10:53:20,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:20,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668847896] [2024-12-02 10:53:20,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:20,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:21,763 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 10:53:21,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:21,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668847896] [2024-12-02 10:53:21,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668847896] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:21,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:21,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:53:21,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124138596] [2024-12-02 10:53:21,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:21,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:21,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:21,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:21,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:53:21,793 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:23,041 INFO L93 Difference]: Finished difference Result 810 states and 1445 transitions. [2024-12-02 10:53:23,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:23,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2024-12-02 10:53:23,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:23,054 INFO L225 Difference]: With dead ends: 810 [2024-12-02 10:53:23,054 INFO L226 Difference]: Without dead ends: 444 [2024-12-02 10:53:23,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 10:53:23,060 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 51 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:23,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 231 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:53:23,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-12-02 10:53:23,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2024-12-02 10:53:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 443 states have (on average 1.4288939051918736) internal successors, (633), 443 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 633 transitions. [2024-12-02 10:53:23,113 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 633 transitions. Word has length 203 [2024-12-02 10:53:23,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:23,114 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 633 transitions. [2024-12-02 10:53:23,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 633 transitions. [2024-12-02 10:53:23,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-12-02 10:53:23,118 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:23,118 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:53:23,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:53:23,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:23,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:23,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1790864508, now seen corresponding path program 1 times [2024-12-02 10:53:23,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:23,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948586017] [2024-12-02 10:53:23,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:23,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:23,374 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:53:23,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:23,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948586017] [2024-12-02 10:53:23,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948586017] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:23,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:23,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:53:23,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083765116] [2024-12-02 10:53:23,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:23,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:23,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:23,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:23,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:53:23,378 INFO L87 Difference]: Start difference. First operand 444 states and 633 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:24,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:24,212 INFO L93 Difference]: Finished difference Result 1312 states and 1878 transitions. [2024-12-02 10:53:24,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:24,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2024-12-02 10:53:24,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:24,215 INFO L225 Difference]: With dead ends: 1312 [2024-12-02 10:53:24,215 INFO L226 Difference]: Without dead ends: 870 [2024-12-02 10:53:24,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 10:53:24,217 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 247 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:24,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 92 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:53:24,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-12-02 10:53:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 856. [2024-12-02 10:53:24,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 1.3941520467836257) internal successors, (1192), 855 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:24,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1192 transitions. [2024-12-02 10:53:24,247 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1192 transitions. Word has length 211 [2024-12-02 10:53:24,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:24,248 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1192 transitions. [2024-12-02 10:53:24,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:24,248 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1192 transitions. [2024-12-02 10:53:24,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-12-02 10:53:24,253 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:24,253 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1] [2024-12-02 10:53:24,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:53:24,253 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:24,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:24,254 INFO L85 PathProgramCache]: Analyzing trace with hash 551804157, now seen corresponding path program 1 times [2024-12-02 10:53:24,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:24,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043902783] [2024-12-02 10:53:24,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:24,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:53:24,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:24,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043902783] [2024-12-02 10:53:24,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043902783] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:24,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:24,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:53:24,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297145200] [2024-12-02 10:53:24,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:24,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:24,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:24,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:24,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:53:24,649 INFO L87 Difference]: Start difference. First operand 856 states and 1192 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:25,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:25,678 INFO L93 Difference]: Finished difference Result 2121 states and 3056 transitions. [2024-12-02 10:53:25,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:25,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2024-12-02 10:53:25,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:25,684 INFO L225 Difference]: With dead ends: 2121 [2024-12-02 10:53:25,684 INFO L226 Difference]: Without dead ends: 1267 [2024-12-02 10:53:25,685 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 10:53:25,686 INFO L435 NwaCegarLoop]: 379 mSDtfsCounter, 236 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:25,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 407 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:53:25,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-12-02 10:53:25,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1265. [2024-12-02 10:53:25,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 1.3291139240506329) internal successors, (1680), 1264 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:25,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1680 transitions. [2024-12-02 10:53:25,725 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1680 transitions. Word has length 223 [2024-12-02 10:53:25,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:25,725 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 1680 transitions. [2024-12-02 10:53:25,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:25,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1680 transitions. [2024-12-02 10:53:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-12-02 10:53:25,731 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:25,731 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 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, 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, 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, 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, 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, 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, 1, 1, 1] [2024-12-02 10:53:25,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:53:25,731 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:25,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:25,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2004662289, now seen corresponding path program 1 times [2024-12-02 10:53:25,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:25,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137624439] [2024-12-02 10:53:25,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:25,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:53:26,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:26,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137624439] [2024-12-02 10:53:26,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137624439] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:26,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:26,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:53:26,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675268966] [2024-12-02 10:53:26,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:26,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:26,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:26,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:26,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:53:26,227 INFO L87 Difference]: Start difference. First operand 1265 states and 1680 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:27,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:27,224 INFO L93 Difference]: Finished difference Result 3147 states and 4169 transitions. [2024-12-02 10:53:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:27,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2024-12-02 10:53:27,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:27,233 INFO L225 Difference]: With dead ends: 3147 [2024-12-02 10:53:27,233 INFO L226 Difference]: Without dead ends: 1884 [2024-12-02 10:53:27,235 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 10:53:27,236 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 214 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:27,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 366 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:53:27,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2024-12-02 10:53:27,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1877. [2024-12-02 10:53:27,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1876 states have (on average 1.273454157782516) internal successors, (2389), 1876 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:27,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2389 transitions. [2024-12-02 10:53:27,291 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2389 transitions. Word has length 231 [2024-12-02 10:53:27,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:27,291 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2389 transitions. [2024-12-02 10:53:27,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:27,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2389 transitions. [2024-12-02 10:53:27,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-12-02 10:53:27,296 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:27,297 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 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, 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, 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, 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, 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, 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, 1, 1] [2024-12-02 10:53:27,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:53:27,297 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:27,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:27,298 INFO L85 PathProgramCache]: Analyzing trace with hash 338780757, now seen corresponding path program 1 times [2024-12-02 10:53:27,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:27,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590002003] [2024-12-02 10:53:27,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:27,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:53:27,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:27,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590002003] [2024-12-02 10:53:27,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590002003] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:27,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:27,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:53:27,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465253609] [2024-12-02 10:53:27,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:27,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:27,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:27,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:27,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:53:27,729 INFO L87 Difference]: Start difference. First operand 1877 states and 2389 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:28,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:28,747 INFO L93 Difference]: Finished difference Result 5386 states and 6889 transitions. [2024-12-02 10:53:28,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:28,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2024-12-02 10:53:28,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:28,762 INFO L225 Difference]: With dead ends: 5386 [2024-12-02 10:53:28,762 INFO L226 Difference]: Without dead ends: 3511 [2024-12-02 10:53:28,765 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 10:53:28,766 INFO L435 NwaCegarLoop]: 365 mSDtfsCounter, 202 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:28,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 388 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:53:28,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3511 states. [2024-12-02 10:53:28,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3511 to 3507. [2024-12-02 10:53:28,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3506 states have (on average 1.2187678265830006) internal successors, (4273), 3506 states have internal predecessors, (4273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:28,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 4273 transitions. [2024-12-02 10:53:28,852 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 4273 transitions. Word has length 238 [2024-12-02 10:53:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:28,853 INFO L471 AbstractCegarLoop]: Abstraction has 3507 states and 4273 transitions. [2024-12-02 10:53:28,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 4273 transitions. [2024-12-02 10:53:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-12-02 10:53:28,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:28,860 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:53:28,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:53:28,860 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:28,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:28,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1822248298, now seen corresponding path program 1 times [2024-12-02 10:53:28,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:28,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967975187] [2024-12-02 10:53:28,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:28,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:29,328 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:53:29,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:29,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967975187] [2024-12-02 10:53:29,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967975187] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:29,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:29,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:53:29,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935607115] [2024-12-02 10:53:29,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:29,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:53:29,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:29,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:53:29,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:53:29,332 INFO L87 Difference]: Start difference. First operand 3507 states and 4273 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:30,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:30,825 INFO L93 Difference]: Finished difference Result 7029 states and 8578 transitions. [2024-12-02 10:53:30,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:53:30,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2024-12-02 10:53:30,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:30,837 INFO L225 Difference]: With dead ends: 7029 [2024-12-02 10:53:30,838 INFO L226 Difference]: Without dead ends: 3524 [2024-12-02 10:53:30,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:53:30,843 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 438 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:30,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 191 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 10:53:30,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3524 states. [2024-12-02 10:53:30,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3524 to 3101. [2024-12-02 10:53:30,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3101 states, 3100 states have (on average 1.2193548387096773) internal successors, (3780), 3100 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:30,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 3780 transitions. [2024-12-02 10:53:30,923 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 3780 transitions. Word has length 247 [2024-12-02 10:53:30,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:30,923 INFO L471 AbstractCegarLoop]: Abstraction has 3101 states and 3780 transitions. [2024-12-02 10:53:30,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:30,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 3780 transitions. [2024-12-02 10:53:30,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-12-02 10:53:30,930 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:30,930 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 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, 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, 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, 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, 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 10:53:30,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:53:30,930 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:30,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:30,931 INFO L85 PathProgramCache]: Analyzing trace with hash -698467143, now seen corresponding path program 1 times [2024-12-02 10:53:30,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:30,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796228817] [2024-12-02 10:53:30,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:30,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 10:53:31,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:31,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796228817] [2024-12-02 10:53:31,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796228817] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:31,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:31,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:53:31,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831199362] [2024-12-02 10:53:31,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:31,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:31,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:31,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:31,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:53:31,140 INFO L87 Difference]: Start difference. First operand 3101 states and 3780 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 2 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:32,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:32,109 INFO L93 Difference]: Finished difference Result 8057 states and 9768 transitions. [2024-12-02 10:53:32,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:32,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 2 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 251 [2024-12-02 10:53:32,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:32,119 INFO L225 Difference]: With dead ends: 8057 [2024-12-02 10:53:32,119 INFO L226 Difference]: Without dead ends: 4958 [2024-12-02 10:53:32,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 10:53:32,123 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 218 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:32,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 218 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:53:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4958 states. [2024-12-02 10:53:32,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4958 to 4956. [2024-12-02 10:53:32,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4956 states, 4955 states have (on average 1.205449041372351) internal successors, (5973), 4955 states have internal predecessors, (5973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4956 states to 4956 states and 5973 transitions. [2024-12-02 10:53:32,229 INFO L78 Accepts]: Start accepts. Automaton has 4956 states and 5973 transitions. Word has length 251 [2024-12-02 10:53:32,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:32,229 INFO L471 AbstractCegarLoop]: Abstraction has 4956 states and 5973 transitions. [2024-12-02 10:53:32,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 2 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:32,230 INFO L276 IsEmpty]: Start isEmpty. Operand 4956 states and 5973 transitions. [2024-12-02 10:53:32,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-12-02 10:53:32,239 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:32,239 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:53:32,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:53:32,240 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:32,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:32,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1876414347, now seen corresponding path program 1 times [2024-12-02 10:53:32,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:32,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393617146] [2024-12-02 10:53:32,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:32,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 56 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 10:53:32,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:32,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393617146] [2024-12-02 10:53:32,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393617146] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:53:32,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538894786] [2024-12-02 10:53:32,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:32,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:53:32,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:53:32,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:53:32,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:53:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:32,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:53:32,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:53:33,320 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 10:53:33,320 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:53:33,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538894786] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:33,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:53:33,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 10:53:33,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102594886] [2024-12-02 10:53:33,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:33,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:33,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:33,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:33,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:53:33,322 INFO L87 Difference]: Start difference. First operand 4956 states and 5973 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:34,181 INFO L93 Difference]: Finished difference Result 14803 states and 17835 transitions. [2024-12-02 10:53:34,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:34,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 254 [2024-12-02 10:53:34,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:34,200 INFO L225 Difference]: With dead ends: 14803 [2024-12-02 10:53:34,200 INFO L226 Difference]: Without dead ends: 9849 [2024-12-02 10:53:34,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:53:34,204 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 53 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:34,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 199 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:53:34,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9849 states. [2024-12-02 10:53:34,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9849 to 9033. [2024-12-02 10:53:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9033 states, 9032 states have (on average 1.1854517271922056) internal successors, (10707), 9032 states have internal predecessors, (10707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:34,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9033 states to 9033 states and 10707 transitions. [2024-12-02 10:53:34,328 INFO L78 Accepts]: Start accepts. Automaton has 9033 states and 10707 transitions. Word has length 254 [2024-12-02 10:53:34,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:34,329 INFO L471 AbstractCegarLoop]: Abstraction has 9033 states and 10707 transitions. [2024-12-02 10:53:34,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:34,329 INFO L276 IsEmpty]: Start isEmpty. Operand 9033 states and 10707 transitions. [2024-12-02 10:53:34,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-12-02 10:53:34,339 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:34,339 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 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, 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, 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, 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, 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 10:53:34,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:53:34,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:53:34,540 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:34,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:34,541 INFO L85 PathProgramCache]: Analyzing trace with hash 140629806, now seen corresponding path program 1 times [2024-12-02 10:53:34,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:34,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359131174] [2024-12-02 10:53:34,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:34,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:35,014 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 58 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 10:53:35,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:35,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359131174] [2024-12-02 10:53:35,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359131174] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:53:35,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448999762] [2024-12-02 10:53:35,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:35,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:53:35,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:53:35,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:53:35,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:53:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:35,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:53:35,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:53:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 10:53:35,278 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:53:35,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448999762] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:35,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:53:35,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-12-02 10:53:35,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862731660] [2024-12-02 10:53:35,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:35,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:35,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:35,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:35,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:53:35,280 INFO L87 Difference]: Start difference. First operand 9033 states and 10707 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:36,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:36,156 INFO L93 Difference]: Finished difference Result 26411 states and 31333 transitions. [2024-12-02 10:53:36,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:36,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2024-12-02 10:53:36,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:36,186 INFO L225 Difference]: With dead ends: 26411 [2024-12-02 10:53:36,186 INFO L226 Difference]: Without dead ends: 17380 [2024-12-02 10:53:36,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:53:36,194 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 233 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:36,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 208 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:53:36,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17380 states. [2024-12-02 10:53:36,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17380 to 17376. [2024-12-02 10:53:36,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17376 states, 17375 states have (on average 1.1608057553956834) internal successors, (20169), 17375 states have internal predecessors, (20169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:36,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17376 states to 17376 states and 20169 transitions. [2024-12-02 10:53:36,437 INFO L78 Accepts]: Start accepts. Automaton has 17376 states and 20169 transitions. Word has length 258 [2024-12-02 10:53:36,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:36,437 INFO L471 AbstractCegarLoop]: Abstraction has 17376 states and 20169 transitions. [2024-12-02 10:53:36,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:36,438 INFO L276 IsEmpty]: Start isEmpty. Operand 17376 states and 20169 transitions. [2024-12-02 10:53:36,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-12-02 10:53:36,464 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:36,464 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:53:36,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:53:36,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:53:36,665 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:36,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:36,666 INFO L85 PathProgramCache]: Analyzing trace with hash -953150870, now seen corresponding path program 1 times [2024-12-02 10:53:36,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:36,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539535217] [2024-12-02 10:53:36,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:36,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:37,097 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 92 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-12-02 10:53:37,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:37,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539535217] [2024-12-02 10:53:37,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539535217] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:53:37,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904091661] [2024-12-02 10:53:37,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:37,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:53:37,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:53:37,100 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:53:37,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:53:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:37,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:53:37,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:53:37,389 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 10:53:37,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:53:37,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904091661] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:37,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:53:37,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-12-02 10:53:37,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662936015] [2024-12-02 10:53:37,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:37,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:37,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:37,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:37,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:53:37,391 INFO L87 Difference]: Start difference. First operand 17376 states and 20169 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:37,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:37,954 INFO L93 Difference]: Finished difference Result 34289 states and 39778 transitions. [2024-12-02 10:53:37,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:37,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 284 [2024-12-02 10:53:37,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:37,995 INFO L225 Difference]: With dead ends: 34289 [2024-12-02 10:53:37,995 INFO L226 Difference]: Without dead ends: 16915 [2024-12-02 10:53:38,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:53:38,006 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 308 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:38,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:53:38,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16915 states. [2024-12-02 10:53:38,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16915 to 16915. [2024-12-02 10:53:38,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16915 states, 16914 states have (on average 1.147156201962871) internal successors, (19403), 16914 states have internal predecessors, (19403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:38,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16915 states to 16915 states and 19403 transitions. [2024-12-02 10:53:38,297 INFO L78 Accepts]: Start accepts. Automaton has 16915 states and 19403 transitions. Word has length 284 [2024-12-02 10:53:38,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:38,297 INFO L471 AbstractCegarLoop]: Abstraction has 16915 states and 19403 transitions. [2024-12-02 10:53:38,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:38,298 INFO L276 IsEmpty]: Start isEmpty. Operand 16915 states and 19403 transitions. [2024-12-02 10:53:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 10:53:38,320 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:38,320 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:53:38,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:53:38,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 10:53:38,521 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:38,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:38,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1815257485, now seen corresponding path program 1 times [2024-12-02 10:53:38,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:38,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044990431] [2024-12-02 10:53:38,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:38,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 10:53:38,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:38,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044990431] [2024-12-02 10:53:38,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044990431] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:38,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:38,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:53:38,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860347811] [2024-12-02 10:53:38,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:38,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:38,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:38,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:38,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:53:38,727 INFO L87 Difference]: Start difference. First operand 16915 states and 19403 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:39,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:39,578 INFO L93 Difference]: Finished difference Result 39334 states and 45458 transitions. [2024-12-02 10:53:39,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:39,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2024-12-02 10:53:39,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:39,601 INFO L225 Difference]: With dead ends: 39334 [2024-12-02 10:53:39,601 INFO L226 Difference]: Without dead ends: 22421 [2024-12-02 10:53:39,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 10:53:39,613 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 156 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:39,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 166 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:53:39,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22421 states. [2024-12-02 10:53:39,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22421 to 21184. [2024-12-02 10:53:39,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21184 states, 21183 states have (on average 1.1619222961808997) internal successors, (24613), 21183 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:39,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21184 states to 21184 states and 24613 transitions. [2024-12-02 10:53:39,873 INFO L78 Accepts]: Start accepts. Automaton has 21184 states and 24613 transitions. Word has length 304 [2024-12-02 10:53:39,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:39,873 INFO L471 AbstractCegarLoop]: Abstraction has 21184 states and 24613 transitions. [2024-12-02 10:53:39,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:39,874 INFO L276 IsEmpty]: Start isEmpty. Operand 21184 states and 24613 transitions. [2024-12-02 10:53:39,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-12-02 10:53:39,896 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:39,897 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:53:39,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:53:39,897 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:39,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:39,897 INFO L85 PathProgramCache]: Analyzing trace with hash 703296270, now seen corresponding path program 1 times [2024-12-02 10:53:39,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:39,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346185814] [2024-12-02 10:53:39,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:39,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:40,367 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 10:53:40,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:40,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346185814] [2024-12-02 10:53:40,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346185814] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:40,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:40,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:53:40,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872937152] [2024-12-02 10:53:40,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:40,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:53:40,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:40,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:53:40,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:53:40,369 INFO L87 Difference]: Start difference. First operand 21184 states and 24613 transitions. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:41,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:41,377 INFO L93 Difference]: Finished difference Result 48671 states and 57104 transitions. [2024-12-02 10:53:41,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:53:41,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2024-12-02 10:53:41,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:41,418 INFO L225 Difference]: With dead ends: 48671 [2024-12-02 10:53:41,418 INFO L226 Difference]: Without dead ends: 26474 [2024-12-02 10:53:41,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:53:41,432 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 572 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:41,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 58 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:53:41,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26474 states. [2024-12-02 10:53:41,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26474 to 26472. [2024-12-02 10:53:41,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26472 states, 26471 states have (on average 1.1043405991462356) internal successors, (29233), 26471 states have internal predecessors, (29233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26472 states to 26472 states and 29233 transitions. [2024-12-02 10:53:41,790 INFO L78 Accepts]: Start accepts. Automaton has 26472 states and 29233 transitions. Word has length 317 [2024-12-02 10:53:41,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:41,790 INFO L471 AbstractCegarLoop]: Abstraction has 26472 states and 29233 transitions. [2024-12-02 10:53:41,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:41,791 INFO L276 IsEmpty]: Start isEmpty. Operand 26472 states and 29233 transitions. [2024-12-02 10:53:41,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-12-02 10:53:41,814 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:41,814 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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 10:53:41,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:53:41,814 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:41,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:41,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1539344213, now seen corresponding path program 1 times [2024-12-02 10:53:41,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:41,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831254850] [2024-12-02 10:53:41,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:41,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 10:53:42,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:42,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831254850] [2024-12-02 10:53:42,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831254850] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:42,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:42,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:53:42,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37946279] [2024-12-02 10:53:42,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:42,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:53:42,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:42,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:53:42,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:53:42,417 INFO L87 Difference]: Start difference. First operand 26472 states and 29233 transitions. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:43,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:43,543 INFO L93 Difference]: Finished difference Result 55399 states and 61131 transitions. [2024-12-02 10:53:43,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:53:43,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 331 [2024-12-02 10:53:43,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:43,570 INFO L225 Difference]: With dead ends: 55399 [2024-12-02 10:53:43,570 INFO L226 Difference]: Without dead ends: 28117 [2024-12-02 10:53:43,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:53:43,585 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 336 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:43,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 83 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:53:43,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28117 states. [2024-12-02 10:53:43,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28117 to 26675. [2024-12-02 10:53:43,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26675 states, 26674 states have (on average 1.1000599835045362) internal successors, (29343), 26674 states have internal predecessors, (29343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:43,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26675 states to 26675 states and 29343 transitions. [2024-12-02 10:53:43,912 INFO L78 Accepts]: Start accepts. Automaton has 26675 states and 29343 transitions. Word has length 331 [2024-12-02 10:53:43,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:43,912 INFO L471 AbstractCegarLoop]: Abstraction has 26675 states and 29343 transitions. [2024-12-02 10:53:43,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:43,912 INFO L276 IsEmpty]: Start isEmpty. Operand 26675 states and 29343 transitions. [2024-12-02 10:53:43,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-12-02 10:53:43,931 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:43,931 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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 10:53:43,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:53:43,932 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:43,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:43,932 INFO L85 PathProgramCache]: Analyzing trace with hash -421616427, now seen corresponding path program 1 times [2024-12-02 10:53:43,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:43,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128862659] [2024-12-02 10:53:43,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:43,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:44,179 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:53:44,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:44,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128862659] [2024-12-02 10:53:44,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128862659] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:44,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:44,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:53:44,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656129813] [2024-12-02 10:53:44,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:44,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:44,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:44,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:44,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:53:44,181 INFO L87 Difference]: Start difference. First operand 26675 states and 29343 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 2 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:44,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:44,631 INFO L93 Difference]: Finished difference Result 78596 states and 86462 transitions. [2024-12-02 10:53:44,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:44,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 2 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 333 [2024-12-02 10:53:44,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:44,675 INFO L225 Difference]: With dead ends: 78596 [2024-12-02 10:53:44,676 INFO L226 Difference]: Without dead ends: 51923 [2024-12-02 10:53:44,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 10:53:44,698 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 179 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:44,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 474 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:53:44,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51923 states. [2024-12-02 10:53:45,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51923 to 51915. [2024-12-02 10:53:45,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51915 states, 51914 states have (on average 1.099510729283045) internal successors, (57080), 51914 states have internal predecessors, (57080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:45,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51915 states to 51915 states and 57080 transitions. [2024-12-02 10:53:45,241 INFO L78 Accepts]: Start accepts. Automaton has 51915 states and 57080 transitions. Word has length 333 [2024-12-02 10:53:45,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:45,241 INFO L471 AbstractCegarLoop]: Abstraction has 51915 states and 57080 transitions. [2024-12-02 10:53:45,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 2 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:45,241 INFO L276 IsEmpty]: Start isEmpty. Operand 51915 states and 57080 transitions. [2024-12-02 10:53:45,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-12-02 10:53:45,261 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:45,262 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:53:45,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:53:45,262 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:45,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:45,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1026939157, now seen corresponding path program 1 times [2024-12-02 10:53:45,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:45,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119226602] [2024-12-02 10:53:45,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:45,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:45,728 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 100 proven. 6 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-12-02 10:53:45,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:45,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119226602] [2024-12-02 10:53:45,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119226602] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:53:45,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337531245] [2024-12-02 10:53:45,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:45,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:53:45,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:53:45,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:53:45,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:53:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:45,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:53:45,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:53:46,275 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-12-02 10:53:46,275 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:53:46,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337531245] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:46,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:53:46,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 10:53:46,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770998867] [2024-12-02 10:53:46,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:46,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:46,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:46,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:46,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:53:46,277 INFO L87 Difference]: Start difference. First operand 51915 states and 57080 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:47,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:47,333 INFO L93 Difference]: Finished difference Result 103627 states and 113943 transitions. [2024-12-02 10:53:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:47,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2024-12-02 10:53:47,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:47,390 INFO L225 Difference]: With dead ends: 103627 [2024-12-02 10:53:47,391 INFO L226 Difference]: Without dead ends: 51714 [2024-12-02 10:53:47,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:53:47,418 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 53 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:47,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 85 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:53:47,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51714 states. [2024-12-02 10:53:47,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51714 to 50494. [2024-12-02 10:53:47,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50494 states, 50493 states have (on average 1.0889430218050027) internal successors, (54984), 50493 states have internal predecessors, (54984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:48,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50494 states to 50494 states and 54984 transitions. [2024-12-02 10:53:48,007 INFO L78 Accepts]: Start accepts. Automaton has 50494 states and 54984 transitions. Word has length 337 [2024-12-02 10:53:48,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:48,007 INFO L471 AbstractCegarLoop]: Abstraction has 50494 states and 54984 transitions. [2024-12-02 10:53:48,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:48,007 INFO L276 IsEmpty]: Start isEmpty. Operand 50494 states and 54984 transitions. [2024-12-02 10:53:48,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-12-02 10:53:48,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:48,028 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:53:48,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:53:48,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 10:53:48,228 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:48,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:48,229 INFO L85 PathProgramCache]: Analyzing trace with hash 496673634, now seen corresponding path program 1 times [2024-12-02 10:53:48,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:48,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835729532] [2024-12-02 10:53:48,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:48,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:48,421 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:53:48,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:48,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835729532] [2024-12-02 10:53:48,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835729532] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:48,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:48,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:53:48,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165193305] [2024-12-02 10:53:48,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:48,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:48,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:48,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:48,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:53:48,424 INFO L87 Difference]: Start difference. First operand 50494 states and 54984 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:49,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:49,345 INFO L93 Difference]: Finished difference Result 95471 states and 103838 transitions. [2024-12-02 10:53:49,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:49,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2024-12-02 10:53:49,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:49,385 INFO L225 Difference]: With dead ends: 95471 [2024-12-02 10:53:49,385 INFO L226 Difference]: Without dead ends: 44979 [2024-12-02 10:53:49,407 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 10:53:49,408 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 176 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:49,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 312 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:53:49,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44979 states. [2024-12-02 10:53:49,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44979 to 43752. [2024-12-02 10:53:49,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43752 states, 43751 states have (on average 1.068798427464515) internal successors, (46761), 43751 states have internal predecessors, (46761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:49,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43752 states to 43752 states and 46761 transitions. [2024-12-02 10:53:49,821 INFO L78 Accepts]: Start accepts. Automaton has 43752 states and 46761 transitions. Word has length 360 [2024-12-02 10:53:49,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:49,821 INFO L471 AbstractCegarLoop]: Abstraction has 43752 states and 46761 transitions. [2024-12-02 10:53:49,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:49,821 INFO L276 IsEmpty]: Start isEmpty. Operand 43752 states and 46761 transitions. [2024-12-02 10:53:49,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 10:53:49,837 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:49,838 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:53:49,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:53:49,838 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:49,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:49,839 INFO L85 PathProgramCache]: Analyzing trace with hash 32721955, now seen corresponding path program 1 times [2024-12-02 10:53:49,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:49,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430679087] [2024-12-02 10:53:49,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:49,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:50,182 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-02 10:53:50,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:50,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430679087] [2024-12-02 10:53:50,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430679087] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:50,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:50,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:53:50,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094429685] [2024-12-02 10:53:50,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:50,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:53:50,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:50,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:53:50,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:53:50,184 INFO L87 Difference]: Start difference. First operand 43752 states and 46761 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:51,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:51,191 INFO L93 Difference]: Finished difference Result 92604 states and 98864 transitions. [2024-12-02 10:53:51,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:53:51,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-12-02 10:53:51,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:51,245 INFO L225 Difference]: With dead ends: 92604 [2024-12-02 10:53:51,245 INFO L226 Difference]: Without dead ends: 48854 [2024-12-02 10:53:51,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:53:51,267 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 390 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:51,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 240 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:53:51,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48854 states. [2024-12-02 10:53:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48854 to 40502. [2024-12-02 10:53:51,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40502 states, 40501 states have (on average 1.063109552850547) internal successors, (43057), 40501 states have internal predecessors, (43057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:51,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40502 states to 40502 states and 43057 transitions. [2024-12-02 10:53:51,866 INFO L78 Accepts]: Start accepts. Automaton has 40502 states and 43057 transitions. Word has length 390 [2024-12-02 10:53:51,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:51,867 INFO L471 AbstractCegarLoop]: Abstraction has 40502 states and 43057 transitions. [2024-12-02 10:53:51,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:51,867 INFO L276 IsEmpty]: Start isEmpty. Operand 40502 states and 43057 transitions. [2024-12-02 10:53:51,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2024-12-02 10:53:51,901 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:51,902 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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 10:53:51,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 10:53:51,902 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:51,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:51,902 INFO L85 PathProgramCache]: Analyzing trace with hash -883760512, now seen corresponding path program 1 times [2024-12-02 10:53:51,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:51,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753282286] [2024-12-02 10:53:51,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:51,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:52,232 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-12-02 10:53:52,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:52,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753282286] [2024-12-02 10:53:52,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753282286] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:52,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:52,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:53:52,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516322559] [2024-12-02 10:53:52,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:52,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:52,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:52,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:52,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:53:52,234 INFO L87 Difference]: Start difference. First operand 40502 states and 43057 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:53,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:53,167 INFO L93 Difference]: Finished difference Result 80397 states and 85471 transitions. [2024-12-02 10:53:53,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:53,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2024-12-02 10:53:53,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:53,206 INFO L225 Difference]: With dead ends: 80397 [2024-12-02 10:53:53,206 INFO L226 Difference]: Without dead ends: 38273 [2024-12-02 10:53:53,226 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 10:53:53,226 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 208 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:53,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 291 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:53:53,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38273 states. [2024-12-02 10:53:53,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38273 to 31363. [2024-12-02 10:53:53,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31363 states, 31362 states have (on average 1.0498373828199732) internal successors, (32925), 31362 states have internal predecessors, (32925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:53,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31363 states to 31363 states and 32925 transitions. [2024-12-02 10:53:53,743 INFO L78 Accepts]: Start accepts. Automaton has 31363 states and 32925 transitions. Word has length 438 [2024-12-02 10:53:53,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:53,743 INFO L471 AbstractCegarLoop]: Abstraction has 31363 states and 32925 transitions. [2024-12-02 10:53:53,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:53,743 INFO L276 IsEmpty]: Start isEmpty. Operand 31363 states and 32925 transitions. [2024-12-02 10:53:53,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-12-02 10:53:53,769 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:53,769 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1] [2024-12-02 10:53:53,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:53:53,769 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:53,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:53,770 INFO L85 PathProgramCache]: Analyzing trace with hash 680795419, now seen corresponding path program 1 times [2024-12-02 10:53:53,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:53,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001468295] [2024-12-02 10:53:53,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:53,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:54,625 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 449 proven. 18 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-02 10:53:54,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:54,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001468295] [2024-12-02 10:53:54,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001468295] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:53:54,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465583791] [2024-12-02 10:53:54,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:54,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:53:54,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:53:54,628 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:53:54,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:53:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:54,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:53:54,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:53:55,108 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-12-02 10:53:55,108 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:53:55,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465583791] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:55,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:53:55,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-12-02 10:53:55,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033612459] [2024-12-02 10:53:55,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:55,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:53:55,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:55,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:53:55,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:53:55,110 INFO L87 Difference]: Start difference. First operand 31363 states and 32925 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 2 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:55,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:55,560 INFO L93 Difference]: Finished difference Result 89602 states and 94077 transitions. [2024-12-02 10:53:55,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:53:55,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 2 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 472 [2024-12-02 10:53:55,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:55,608 INFO L225 Difference]: With dead ends: 89602 [2024-12-02 10:53:55,608 INFO L226 Difference]: Without dead ends: 58241 [2024-12-02 10:53:55,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:53:55,626 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 158 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:55,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 468 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:53:55,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58241 states. [2024-12-02 10:53:56,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58241 to 56201. [2024-12-02 10:53:56,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56201 states, 56200 states have (on average 1.049928825622776) internal successors, (59006), 56200 states have internal predecessors, (59006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:56,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56201 states to 56201 states and 59006 transitions. [2024-12-02 10:53:56,210 INFO L78 Accepts]: Start accepts. Automaton has 56201 states and 59006 transitions. Word has length 472 [2024-12-02 10:53:56,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:56,210 INFO L471 AbstractCegarLoop]: Abstraction has 56201 states and 59006 transitions. [2024-12-02 10:53:56,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 2 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:56,210 INFO L276 IsEmpty]: Start isEmpty. Operand 56201 states and 59006 transitions. [2024-12-02 10:53:56,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-12-02 10:53:56,231 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:56,231 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:53:56,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:53:56,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:53:56,431 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:56,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:56,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1531633206, now seen corresponding path program 1 times [2024-12-02 10:53:56,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:56,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482184436] [2024-12-02 10:53:56,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:56,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:56,840 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 531 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-12-02 10:53:56,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:56,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482184436] [2024-12-02 10:53:56,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482184436] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:56,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:53:56,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:53:56,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806856494] [2024-12-02 10:53:56,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:56,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:53:56,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:56,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:53:56,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:53:56,843 INFO L87 Difference]: Start difference. First operand 56201 states and 59006 transitions. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:57,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:53:57,781 INFO L93 Difference]: Finished difference Result 109964 states and 115493 transitions. [2024-12-02 10:53:57,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:53:57,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 521 [2024-12-02 10:53:57,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:53:57,824 INFO L225 Difference]: With dead ends: 109964 [2024-12-02 10:53:57,824 INFO L226 Difference]: Without dead ends: 49498 [2024-12-02 10:53:57,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:53:57,848 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 277 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:53:57,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 370 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:53:57,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49498 states. [2024-12-02 10:53:58,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49498 to 47059. [2024-12-02 10:53:58,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47059 states, 47058 states have (on average 1.0515746525564198) internal successors, (49485), 47058 states have internal predecessors, (49485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47059 states to 47059 states and 49485 transitions. [2024-12-02 10:53:58,418 INFO L78 Accepts]: Start accepts. Automaton has 47059 states and 49485 transitions. Word has length 521 [2024-12-02 10:53:58,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:53:58,419 INFO L471 AbstractCegarLoop]: Abstraction has 47059 states and 49485 transitions. [2024-12-02 10:53:58,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:53:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 47059 states and 49485 transitions. [2024-12-02 10:53:58,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2024-12-02 10:53:58,439 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:53:58,439 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:53:58,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 10:53:58,439 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:53:58,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:53:58,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1563803765, now seen corresponding path program 1 times [2024-12-02 10:53:58,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:53:58,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461794755] [2024-12-02 10:53:58,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:58,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:53:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 549 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:53:59,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:53:59,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461794755] [2024-12-02 10:53:59,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461794755] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:53:59,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740699767] [2024-12-02 10:53:59,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:53:59,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:53:59,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:53:59,096 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:53:59,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:53:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:53:59,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:53:59,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:53:59,630 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-12-02 10:53:59,630 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:53:59,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740699767] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:53:59,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:53:59,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-12-02 10:53:59,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249351772] [2024-12-02 10:53:59,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:53:59,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:53:59,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:53:59,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:53:59,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:53:59,633 INFO L87 Difference]: Start difference. First operand 47059 states and 49485 transitions. Second operand has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:00,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:00,727 INFO L93 Difference]: Finished difference Result 135888 states and 142856 transitions. [2024-12-02 10:54:00,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:54:00,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 561 [2024-12-02 10:54:00,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:00,800 INFO L225 Difference]: With dead ends: 135888 [2024-12-02 10:54:00,800 INFO L226 Difference]: Without dead ends: 88831 [2024-12-02 10:54:00,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:54:00,828 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 357 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:00,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 479 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:54:00,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88831 states. [2024-12-02 10:54:01,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88831 to 88202. [2024-12-02 10:54:01,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88202 states, 88201 states have (on average 1.0510198297071462) internal successors, (92701), 88201 states have internal predecessors, (92701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:01,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88202 states to 88202 states and 92701 transitions. [2024-12-02 10:54:01,745 INFO L78 Accepts]: Start accepts. Automaton has 88202 states and 92701 transitions. Word has length 561 [2024-12-02 10:54:01,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:54:01,745 INFO L471 AbstractCegarLoop]: Abstraction has 88202 states and 92701 transitions. [2024-12-02 10:54:01,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:01,745 INFO L276 IsEmpty]: Start isEmpty. Operand 88202 states and 92701 transitions. [2024-12-02 10:54:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2024-12-02 10:54:01,788 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:54:01,788 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:54:01,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:54:01,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 10:54:01,988 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:54:01,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:54:01,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1392133176, now seen corresponding path program 1 times [2024-12-02 10:54:01,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:54:01,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388882392] [2024-12-02 10:54:01,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:01,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:54:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2024-12-02 10:54:02,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:54:02,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388882392] [2024-12-02 10:54:02,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388882392] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:54:02,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:54:02,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:54:02,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810596695] [2024-12-02 10:54:02,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:54:02,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:54:02,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:54:02,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:54:02,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:54:02,648 INFO L87 Difference]: Start difference. First operand 88202 states and 92701 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:03,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:03,544 INFO L93 Difference]: Finished difference Result 176433 states and 185438 transitions. [2024-12-02 10:54:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:54:03,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 632 [2024-12-02 10:54:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:03,604 INFO L225 Difference]: With dead ends: 176433 [2024-12-02 10:54:03,604 INFO L226 Difference]: Without dead ends: 88233 [2024-12-02 10:54:03,637 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 10:54:03,638 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 57 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:03,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 271 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:54:03,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88233 states. [2024-12-02 10:54:04,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88233 to 86577. [2024-12-02 10:54:04,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86577 states, 86576 states have (on average 1.0499099057475514) internal successors, (90897), 86576 states have internal predecessors, (90897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:04,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86577 states to 86577 states and 90897 transitions. [2024-12-02 10:54:04,512 INFO L78 Accepts]: Start accepts. Automaton has 86577 states and 90897 transitions. Word has length 632 [2024-12-02 10:54:04,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:54:04,513 INFO L471 AbstractCegarLoop]: Abstraction has 86577 states and 90897 transitions. [2024-12-02 10:54:04,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 86577 states and 90897 transitions. [2024-12-02 10:54:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2024-12-02 10:54:04,566 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:54:04,566 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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 10:54:04,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 10:54:04,567 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:54:04,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:54:04,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1467292770, now seen corresponding path program 1 times [2024-12-02 10:54:04,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:54:04,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640193014] [2024-12-02 10:54:04,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:04,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:54:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:05,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1975 backedges. 298 proven. 6 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2024-12-02 10:54:05,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:54:05,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640193014] [2024-12-02 10:54:05,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640193014] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:54:05,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777679985] [2024-12-02 10:54:05,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:05,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:05,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:54:05,968 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:54:05,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:54:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:06,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:54:06,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:54:06,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1975 backedges. 1479 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 10:54:06,698 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:54:06,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777679985] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:54:06,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:54:06,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 10:54:06,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167434665] [2024-12-02 10:54:06,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:54:06,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:54:06,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:54:06,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:54:06,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:06,700 INFO L87 Difference]: Start difference. First operand 86577 states and 90897 transitions. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:07,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:07,409 INFO L93 Difference]: Finished difference Result 209450 states and 219964 transitions. [2024-12-02 10:54:07,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:54:07,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 784 [2024-12-02 10:54:07,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:07,519 INFO L225 Difference]: With dead ends: 209450 [2024-12-02 10:54:07,519 INFO L226 Difference]: Without dead ends: 122875 [2024-12-02 10:54:07,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 786 GetRequests, 783 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:07,564 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 112 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:07,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 695 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:54:07,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122875 states. [2024-12-02 10:54:08,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122875 to 118815. [2024-12-02 10:54:08,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118815 states, 118814 states have (on average 1.0466022522598346) internal successors, (124351), 118814 states have internal predecessors, (124351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:08,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118815 states to 118815 states and 124351 transitions. [2024-12-02 10:54:08,943 INFO L78 Accepts]: Start accepts. Automaton has 118815 states and 124351 transitions. Word has length 784 [2024-12-02 10:54:08,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:54:08,944 INFO L471 AbstractCegarLoop]: Abstraction has 118815 states and 124351 transitions. [2024-12-02 10:54:08,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:08,944 INFO L276 IsEmpty]: Start isEmpty. Operand 118815 states and 124351 transitions. [2024-12-02 10:54:09,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2024-12-02 10:54:09,010 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:54:09,010 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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 10:54:09,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 10:54:09,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:09,211 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:54:09,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:54:09,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1151805270, now seen corresponding path program 1 times [2024-12-02 10:54:09,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:54:09,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862691189] [2024-12-02 10:54:09,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:09,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:54:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:10,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2416 backedges. 355 proven. 6 refuted. 0 times theorem prover too weak. 2055 trivial. 0 not checked. [2024-12-02 10:54:10,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:54:10,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862691189] [2024-12-02 10:54:10,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862691189] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:54:10,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878173739] [2024-12-02 10:54:10,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:10,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:10,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:54:10,290 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:54:10,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:54:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:10,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:54:10,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:54:10,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2416 backedges. 1663 proven. 0 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2024-12-02 10:54:10,995 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:54:10,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878173739] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:54:10,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:54:10,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 10:54:10,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897523507] [2024-12-02 10:54:10,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:54:10,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:54:10,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:54:10,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:54:10,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:10,996 INFO L87 Difference]: Start difference. First operand 118815 states and 124351 transitions. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:11,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:11,970 INFO L93 Difference]: Finished difference Result 310068 states and 324711 transitions. [2024-12-02 10:54:11,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:54:11,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 829 [2024-12-02 10:54:11,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:12,151 INFO L225 Difference]: With dead ends: 310068 [2024-12-02 10:54:12,151 INFO L226 Difference]: Without dead ends: 190849 [2024-12-02 10:54:12,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 828 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:12,219 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 187 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:12,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 704 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:54:12,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190849 states. [2024-12-02 10:54:14,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190849 to 174601. [2024-12-02 10:54:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174601 states, 174600 states have (on average 1.0455383734249715) internal successors, (182551), 174600 states have internal predecessors, (182551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:14,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174601 states to 174601 states and 182551 transitions. [2024-12-02 10:54:14,600 INFO L78 Accepts]: Start accepts. Automaton has 174601 states and 182551 transitions. Word has length 829 [2024-12-02 10:54:14,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:54:14,601 INFO L471 AbstractCegarLoop]: Abstraction has 174601 states and 182551 transitions. [2024-12-02 10:54:14,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:14,601 INFO L276 IsEmpty]: Start isEmpty. Operand 174601 states and 182551 transitions. [2024-12-02 10:54:15,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 947 [2024-12-02 10:54:15,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:54:15,103 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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 10:54:15,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 10:54:15,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 10:54:15,303 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:54:15,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:54:15,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1252291571, now seen corresponding path program 1 times [2024-12-02 10:54:15,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:54:15,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073949995] [2024-12-02 10:54:15,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:15,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:54:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 399 proven. 6 refuted. 0 times theorem prover too weak. 2881 trivial. 0 not checked. [2024-12-02 10:54:16,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:54:16,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073949995] [2024-12-02 10:54:16,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073949995] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:54:16,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401504065] [2024-12-02 10:54:16,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:16,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:16,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:54:16,609 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:54:16,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 10:54:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:17,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 1560 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:54:17,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:54:17,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 1937 proven. 0 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2024-12-02 10:54:17,202 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:54:17,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401504065] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:54:17,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:54:17,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 10:54:17,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228514054] [2024-12-02 10:54:17,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:54:17,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:54:17,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:54:17,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:54:17,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:17,203 INFO L87 Difference]: Start difference. First operand 174601 states and 182551 transitions. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:18,731 INFO L93 Difference]: Finished difference Result 371414 states and 388342 transitions. [2024-12-02 10:54:18,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:54:18,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 946 [2024-12-02 10:54:18,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:18,968 INFO L225 Difference]: With dead ends: 371414 [2024-12-02 10:54:18,968 INFO L226 Difference]: Without dead ends: 196815 [2024-12-02 10:54:19,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 948 GetRequests, 945 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:19,069 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 203 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:19,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 313 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:54:19,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196815 states. [2024-12-02 10:54:22,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196815 to 178649. [2024-12-02 10:54:22,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178649 states, 178648 states have (on average 1.0446072724015942) internal successors, (186617), 178648 states have internal predecessors, (186617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:22,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178649 states to 178649 states and 186617 transitions. [2024-12-02 10:54:22,467 INFO L78 Accepts]: Start accepts. Automaton has 178649 states and 186617 transitions. Word has length 946 [2024-12-02 10:54:22,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:54:22,468 INFO L471 AbstractCegarLoop]: Abstraction has 178649 states and 186617 transitions. [2024-12-02 10:54:22,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:22,468 INFO L276 IsEmpty]: Start isEmpty. Operand 178649 states and 186617 transitions. [2024-12-02 10:54:22,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2024-12-02 10:54:22,587 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:54:22,587 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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 10:54:22,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 10:54:22,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 10:54:22,788 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:54:22,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:54:22,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2042965414, now seen corresponding path program 1 times [2024-12-02 10:54:22,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:54:22,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67918266] [2024-12-02 10:54:22,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:22,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:54:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3589 backedges. 409 proven. 6 refuted. 0 times theorem prover too weak. 3174 trivial. 0 not checked. [2024-12-02 10:54:24,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:54:24,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67918266] [2024-12-02 10:54:24,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67918266] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:54:24,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120361066] [2024-12-02 10:54:24,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:24,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:24,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:54:24,065 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:54:24,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 10:54:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:24,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 1612 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:54:24,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:54:25,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3589 backedges. 2491 proven. 0 refuted. 0 times theorem prover too weak. 1098 trivial. 0 not checked. [2024-12-02 10:54:25,164 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:54:25,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120361066] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:54:25,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:54:25,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 10:54:25,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737321298] [2024-12-02 10:54:25,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:54:25,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:54:25,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:54:25,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:54:25,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:25,166 INFO L87 Difference]: Start difference. First operand 178649 states and 186617 transitions. Second operand has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:26,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:26,487 INFO L93 Difference]: Finished difference Result 317955 states and 332117 transitions. [2024-12-02 10:54:26,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:54:26,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 996 [2024-12-02 10:54:26,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:26,643 INFO L225 Difference]: With dead ends: 317955 [2024-12-02 10:54:26,644 INFO L226 Difference]: Without dead ends: 138496 [2024-12-02 10:54:26,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 998 GetRequests, 995 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:26,733 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 121 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:26,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 747 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:54:26,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138496 states. [2024-12-02 10:54:28,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138496 to 135855. [2024-12-02 10:54:28,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135855 states, 135854 states have (on average 1.0413900216408791) internal successors, (141477), 135854 states have internal predecessors, (141477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:28,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135855 states to 135855 states and 141477 transitions. [2024-12-02 10:54:28,403 INFO L78 Accepts]: Start accepts. Automaton has 135855 states and 141477 transitions. Word has length 996 [2024-12-02 10:54:28,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:54:28,403 INFO L471 AbstractCegarLoop]: Abstraction has 135855 states and 141477 transitions. [2024-12-02 10:54:28,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:28,404 INFO L276 IsEmpty]: Start isEmpty. Operand 135855 states and 141477 transitions. [2024-12-02 10:54:28,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 999 [2024-12-02 10:54:28,500 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:54:28,500 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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 10:54:28,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 10:54:28,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:28,701 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:54:28,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:54:28,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1208810367, now seen corresponding path program 1 times [2024-12-02 10:54:28,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:54:28,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820770626] [2024-12-02 10:54:28,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:28,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:54:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 406 proven. 6 refuted. 0 times theorem prover too weak. 3150 trivial. 0 not checked. [2024-12-02 10:54:30,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:54:30,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820770626] [2024-12-02 10:54:30,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820770626] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:54:30,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241751902] [2024-12-02 10:54:30,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:30,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:30,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:54:30,117 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:54:30,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 10:54:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:30,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:54:30,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:54:30,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 2254 proven. 0 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2024-12-02 10:54:30,885 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:54:30,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241751902] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:54:30,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:54:30,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 10:54:30,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435483919] [2024-12-02 10:54:30,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:54:30,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:54:30,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:54:30,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:54:30,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:30,886 INFO L87 Difference]: Start difference. First operand 135855 states and 141477 transitions. Second operand has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:32,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:32,116 INFO L93 Difference]: Finished difference Result 340590 states and 354964 transitions. [2024-12-02 10:54:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:54:32,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 998 [2024-12-02 10:54:32,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:32,317 INFO L225 Difference]: With dead ends: 340590 [2024-12-02 10:54:32,317 INFO L226 Difference]: Without dead ends: 197835 [2024-12-02 10:54:32,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1000 GetRequests, 997 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:32,377 INFO L435 NwaCegarLoop]: 528 mSDtfsCounter, 130 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:32,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 764 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:54:32,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197835 states. [2024-12-02 10:54:34,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197835 to 194565. [2024-12-02 10:54:34,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194565 states, 194564 states have (on average 1.0402284081330564) internal successors, (202391), 194564 states have internal predecessors, (202391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194565 states to 194565 states and 202391 transitions. [2024-12-02 10:54:35,075 INFO L78 Accepts]: Start accepts. Automaton has 194565 states and 202391 transitions. Word has length 998 [2024-12-02 10:54:35,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:54:35,076 INFO L471 AbstractCegarLoop]: Abstraction has 194565 states and 202391 transitions. [2024-12-02 10:54:35,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 194565 states and 202391 transitions. [2024-12-02 10:54:35,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1061 [2024-12-02 10:54:35,288 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:54:35,289 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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 10:54:35,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 10:54:35,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:35,489 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:54:35,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:54:35,490 INFO L85 PathProgramCache]: Analyzing trace with hash -2045353701, now seen corresponding path program 1 times [2024-12-02 10:54:35,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:54:35,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879218587] [2024-12-02 10:54:35,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:35,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:54:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:37,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3865 backedges. 388 proven. 6 refuted. 0 times theorem prover too weak. 3471 trivial. 0 not checked. [2024-12-02 10:54:37,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:54:37,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879218587] [2024-12-02 10:54:37,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879218587] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:54:37,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521140135] [2024-12-02 10:54:37,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:37,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:37,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:54:37,217 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:54:37,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 10:54:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:37,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 1648 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:54:37,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:54:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3865 backedges. 2505 proven. 0 refuted. 0 times theorem prover too weak. 1360 trivial. 0 not checked. [2024-12-02 10:54:37,995 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:54:37,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521140135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:54:37,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:54:37,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2024-12-02 10:54:37,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550463207] [2024-12-02 10:54:37,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:54:37,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:54:37,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:54:37,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:54:37,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:54:37,997 INFO L87 Difference]: Start difference. First operand 194565 states and 202391 transitions. Second operand has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:40,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:40,034 INFO L93 Difference]: Finished difference Result 399960 states and 416187 transitions. [2024-12-02 10:54:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:54:40,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1060 [2024-12-02 10:54:40,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:40,238 INFO L225 Difference]: With dead ends: 399960 [2024-12-02 10:54:40,238 INFO L226 Difference]: Without dead ends: 199104 [2024-12-02 10:54:40,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1062 GetRequests, 1058 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:54:40,313 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 289 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:40,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 88 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:54:40,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199104 states. [2024-12-02 10:54:42,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199104 to 182908. [2024-12-02 10:54:42,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182908 states, 182907 states have (on average 1.034367192070287) internal successors, (189193), 182907 states have internal predecessors, (189193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:43,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182908 states to 182908 states and 189193 transitions. [2024-12-02 10:54:43,066 INFO L78 Accepts]: Start accepts. Automaton has 182908 states and 189193 transitions. Word has length 1060 [2024-12-02 10:54:43,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:54:43,067 INFO L471 AbstractCegarLoop]: Abstraction has 182908 states and 189193 transitions. [2024-12-02 10:54:43,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:43,067 INFO L276 IsEmpty]: Start isEmpty. Operand 182908 states and 189193 transitions. [2024-12-02 10:54:43,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2024-12-02 10:54:43,481 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:54:43,482 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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 10:54:43,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 10:54:43,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 10:54:43,682 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:54:43,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:54:43,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1504940780, now seen corresponding path program 2 times [2024-12-02 10:54:43,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:54:43,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577100337] [2024-12-02 10:54:43,684 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:54:43,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:54:43,861 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:54:43,861 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:54:46,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4362 backedges. 449 proven. 0 refuted. 0 times theorem prover too weak. 3913 trivial. 0 not checked. [2024-12-02 10:54:46,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:54:46,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577100337] [2024-12-02 10:54:46,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577100337] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:54:46,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:54:46,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:54:46,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120007544] [2024-12-02 10:54:46,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:54:46,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:54:46,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:54:46,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:54:46,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:46,063 INFO L87 Difference]: Start difference. First operand 182908 states and 189193 transitions. Second operand has 5 states, 5 states have (on average 51.2) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:49,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:49,155 INFO L93 Difference]: Finished difference Result 378845 states and 391844 transitions. [2024-12-02 10:54:49,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:54:49,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1090 [2024-12-02 10:54:49,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:49,337 INFO L225 Difference]: With dead ends: 378845 [2024-12-02 10:54:49,337 INFO L226 Difference]: Without dead ends: 195939 [2024-12-02 10:54:49,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:54:49,393 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 1193 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:49,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 67 Invalid, 1519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 10:54:49,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195939 states. [2024-12-02 10:54:51,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195939 to 183477. [2024-12-02 10:54:51,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183477 states, 183476 states have (on average 1.0340207983605485) internal successors, (189718), 183476 states have internal predecessors, (189718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:51,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183477 states to 183477 states and 189718 transitions. [2024-12-02 10:54:51,996 INFO L78 Accepts]: Start accepts. Automaton has 183477 states and 189718 transitions. Word has length 1090 [2024-12-02 10:54:51,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:54:51,996 INFO L471 AbstractCegarLoop]: Abstraction has 183477 states and 189718 transitions. [2024-12-02 10:54:51,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 183477 states and 189718 transitions. [2024-12-02 10:54:52,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1227 [2024-12-02 10:54:52,204 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:54:52,204 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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 10:54:52,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 10:54:52,205 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:54:52,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:54:52,205 INFO L85 PathProgramCache]: Analyzing trace with hash 736631611, now seen corresponding path program 1 times [2024-12-02 10:54:52,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:54:52,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891330547] [2024-12-02 10:54:52,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:52,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:54:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:53,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5951 backedges. 530 proven. 6 refuted. 0 times theorem prover too weak. 5415 trivial. 0 not checked. [2024-12-02 10:54:53,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:54:53,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891330547] [2024-12-02 10:54:53,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891330547] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:54:53,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683659932] [2024-12-02 10:54:53,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:53,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:53,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:54:53,940 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:54:53,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 10:54:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:54,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 2064 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:54:54,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:54:54,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5951 backedges. 1331 proven. 0 refuted. 0 times theorem prover too weak. 4620 trivial. 0 not checked. [2024-12-02 10:54:54,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:54:54,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683659932] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:54:54,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:54:54,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 10:54:54,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593165801] [2024-12-02 10:54:54,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:54:54,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:54:54,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:54:54,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:54:54,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:54,637 INFO L87 Difference]: Start difference. First operand 183477 states and 189718 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:54:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:56,214 INFO L93 Difference]: Finished difference Result 463125 states and 479026 transitions. [2024-12-02 10:54:56,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:54:56,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1226 [2024-12-02 10:54:56,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:56,471 INFO L225 Difference]: With dead ends: 463125 [2024-12-02 10:54:56,471 INFO L226 Difference]: Without dead ends: 267446 [2024-12-02 10:54:56,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1228 GetRequests, 1225 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:54:56,521 INFO L435 NwaCegarLoop]: 525 mSDtfsCounter, 264 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:56,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 756 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:54:56,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267446 states. [2024-12-02 10:54:59,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267446 to 254577. [2024-12-02 10:54:59,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254577 states, 254576 states have (on average 1.0316251335554019) internal successors, (262627), 254576 states have internal predecessors, (262627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:00,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254577 states to 254577 states and 262627 transitions. [2024-12-02 10:55:00,202 INFO L78 Accepts]: Start accepts. Automaton has 254577 states and 262627 transitions. Word has length 1226 [2024-12-02 10:55:00,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:55:00,203 INFO L471 AbstractCegarLoop]: Abstraction has 254577 states and 262627 transitions. [2024-12-02 10:55:00,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:00,203 INFO L276 IsEmpty]: Start isEmpty. Operand 254577 states and 262627 transitions. [2024-12-02 10:55:00,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1242 [2024-12-02 10:55:00,380 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:55:00,381 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 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, 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 10:55:00,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 10:55:00,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:55:00,581 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:55:00,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:55:00,582 INFO L85 PathProgramCache]: Analyzing trace with hash -722381065, now seen corresponding path program 1 times [2024-12-02 10:55:00,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:55:00,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971822518] [2024-12-02 10:55:00,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:55:00,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:55:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:55:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 5995 backedges. 523 proven. 6 refuted. 0 times theorem prover too weak. 5466 trivial. 0 not checked. [2024-12-02 10:55:02,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:55:02,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971822518] [2024-12-02 10:55:02,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971822518] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:55:02,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083003773] [2024-12-02 10:55:02,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:55:02,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:55:02,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:55:02,069 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:55:02,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 10:55:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:55:02,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 2031 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:55:02,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:55:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5995 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 5466 trivial. 0 not checked. [2024-12-02 10:55:03,112 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:55:03,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083003773] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:55:03,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:55:03,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-12-02 10:55:03,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506635830] [2024-12-02 10:55:03,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:55:03,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:55:03,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:55:03,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:55:03,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:55:03,114 INFO L87 Difference]: Start difference. First operand 254577 states and 262627 transitions. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:05,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:55:05,876 INFO L93 Difference]: Finished difference Result 565492 states and 583639 transitions. [2024-12-02 10:55:05,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:55:05,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1241 [2024-12-02 10:55:05,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:55:06,181 INFO L225 Difference]: With dead ends: 565492 [2024-12-02 10:55:06,181 INFO L226 Difference]: Without dead ends: 310917 [2024-12-02 10:55:06,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1243 GetRequests, 1239 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:55:06,241 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 679 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:55:06,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 267 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:55:06,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310917 states. [2024-12-02 10:55:09,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310917 to 294861. [2024-12-02 10:55:09,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294861 states, 294860 states have (on average 1.0322152886115445) internal successors, (304359), 294860 states have internal predecessors, (304359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:10,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294861 states to 294861 states and 304359 transitions. [2024-12-02 10:55:10,029 INFO L78 Accepts]: Start accepts. Automaton has 294861 states and 304359 transitions. Word has length 1241 [2024-12-02 10:55:10,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:55:10,030 INFO L471 AbstractCegarLoop]: Abstraction has 294861 states and 304359 transitions. [2024-12-02 10:55:10,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:10,030 INFO L276 IsEmpty]: Start isEmpty. Operand 294861 states and 304359 transitions. [2024-12-02 10:55:10,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1266 [2024-12-02 10:55:10,723 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:55:10,723 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 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, 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, 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 10:55:10,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 10:55:10,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:55:10,924 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:55:10,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:55:10,925 INFO L85 PathProgramCache]: Analyzing trace with hash 7014414, now seen corresponding path program 1 times [2024-12-02 10:55:10,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:55:10,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130048479] [2024-12-02 10:55:10,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:55:10,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:55:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:55:13,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5798 backedges. 1209 proven. 9 refuted. 0 times theorem prover too weak. 4580 trivial. 0 not checked. [2024-12-02 10:55:13,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:55:13,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130048479] [2024-12-02 10:55:13,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130048479] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:55:13,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786554645] [2024-12-02 10:55:13,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:55:13,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:55:13,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:55:13,307 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:55:13,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 10:55:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:55:14,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 2064 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:55:14,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:55:14,066 INFO L134 CoverageAnalysis]: Checked inductivity of 5798 backedges. 1212 proven. 0 refuted. 0 times theorem prover too weak. 4586 trivial. 0 not checked. [2024-12-02 10:55:14,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:55:14,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786554645] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:55:14,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:55:14,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-12-02 10:55:14,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305417314] [2024-12-02 10:55:14,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:55:14,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:55:14,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:55:14,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:55:14,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:55:14,069 INFO L87 Difference]: Start difference. First operand 294861 states and 304359 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:16,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:55:16,184 INFO L93 Difference]: Finished difference Result 602819 states and 622166 transitions. [2024-12-02 10:55:16,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:55:16,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1265 [2024-12-02 10:55:16,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:55:16,773 INFO L225 Difference]: With dead ends: 602819 [2024-12-02 10:55:16,774 INFO L226 Difference]: Without dead ends: 304497 [2024-12-02 10:55:16,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1268 GetRequests, 1264 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:55:16,837 INFO L435 NwaCegarLoop]: 311 mSDtfsCounter, 209 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:55:16,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 327 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:55:17,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304497 states. [2024-12-02 10:55:20,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304497 to 290184. [2024-12-02 10:55:20,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290184 states, 290183 states have (on average 1.0318006223658864) internal successors, (299411), 290183 states have internal predecessors, (299411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:20,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290184 states to 290184 states and 299411 transitions. [2024-12-02 10:55:20,866 INFO L78 Accepts]: Start accepts. Automaton has 290184 states and 299411 transitions. Word has length 1265 [2024-12-02 10:55:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:55:20,866 INFO L471 AbstractCegarLoop]: Abstraction has 290184 states and 299411 transitions. [2024-12-02 10:55:20,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand 290184 states and 299411 transitions. [2024-12-02 10:55:21,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1287 [2024-12-02 10:55:21,060 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:55:21,061 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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 10:55:21,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 10:55:21,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:55:21,261 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:55:21,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:55:21,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1911374408, now seen corresponding path program 1 times [2024-12-02 10:55:21,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:55:21,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947865569] [2024-12-02 10:55:21,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:55:21,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:55:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:55:22,893 INFO L134 CoverageAnalysis]: Checked inductivity of 6172 backedges. 1808 proven. 0 refuted. 0 times theorem prover too weak. 4364 trivial. 0 not checked. [2024-12-02 10:55:22,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:55:22,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947865569] [2024-12-02 10:55:22,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947865569] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:55:22,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:55:22,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:55:22,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889690950] [2024-12-02 10:55:22,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:55:22,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:55:22,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:55:22,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:55:22,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:55:22,895 INFO L87 Difference]: Start difference. First operand 290184 states and 299411 transitions. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:25,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:55:25,409 INFO L93 Difference]: Finished difference Result 591759 states and 610436 transitions. [2024-12-02 10:55:25,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:55:25,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1286 [2024-12-02 10:55:25,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:55:26,005 INFO L225 Difference]: With dead ends: 591759 [2024-12-02 10:55:26,005 INFO L226 Difference]: Without dead ends: 301171 [2024-12-02 10:55:26,093 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 10:55:26,094 INFO L435 NwaCegarLoop]: 288 mSDtfsCounter, 159 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:55:26,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 303 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:55:26,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301171 states. [2024-12-02 10:55:29,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301171 to 273912. [2024-12-02 10:55:29,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273912 states, 273911 states have (on average 1.0293343458276594) internal successors, (281946), 273911 states have internal predecessors, (281946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273912 states to 273912 states and 281946 transitions. [2024-12-02 10:55:30,264 INFO L78 Accepts]: Start accepts. Automaton has 273912 states and 281946 transitions. Word has length 1286 [2024-12-02 10:55:30,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:55:30,264 INFO L471 AbstractCegarLoop]: Abstraction has 273912 states and 281946 transitions. [2024-12-02 10:55:30,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:30,264 INFO L276 IsEmpty]: Start isEmpty. Operand 273912 states and 281946 transitions. [2024-12-02 10:55:30,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1296 [2024-12-02 10:55:30,442 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:55:30,442 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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 10:55:30,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 10:55:30,443 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:55:30,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:55:30,443 INFO L85 PathProgramCache]: Analyzing trace with hash 228152343, now seen corresponding path program 1 times [2024-12-02 10:55:30,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:55:30,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283643426] [2024-12-02 10:55:30,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:55:30,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:55:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:55:32,745 INFO L134 CoverageAnalysis]: Checked inductivity of 6418 backedges. 2749 proven. 192 refuted. 0 times theorem prover too weak. 3477 trivial. 0 not checked. [2024-12-02 10:55:32,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:55:32,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283643426] [2024-12-02 10:55:32,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283643426] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:55:32,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927328632] [2024-12-02 10:55:32,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:55:32,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:55:32,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:55:32,748 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:55:32,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 10:55:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:55:33,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 2095 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:55:33,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:55:33,751 INFO L134 CoverageAnalysis]: Checked inductivity of 6418 backedges. 3950 proven. 0 refuted. 0 times theorem prover too weak. 2468 trivial. 0 not checked. [2024-12-02 10:55:33,751 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:55:33,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927328632] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:55:33,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:55:33,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-12-02 10:55:33,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608019829] [2024-12-02 10:55:33,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:55:33,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:55:33,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:55:33,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:55:33,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:55:33,753 INFO L87 Difference]: Start difference. First operand 273912 states and 281946 transitions. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:34,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:55:34,914 INFO L93 Difference]: Finished difference Result 414322 states and 426480 transitions. [2024-12-02 10:55:34,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:55:34,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1295 [2024-12-02 10:55:34,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:55:34,922 INFO L225 Difference]: With dead ends: 414322 [2024-12-02 10:55:34,923 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 10:55:35,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1299 GetRequests, 1294 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:55:35,034 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 118 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:55:35,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 727 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:55:35,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 10:55:35,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 10:55:35,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:35,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 10:55:35,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1295 [2024-12-02 10:55:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:55:35,039 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 10:55:35,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:55:35,040 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 10:55:35,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 10:55:35,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 10:55:35,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 10:55:35,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 10:55:35,246 INFO L422 BasicCegarLoop]: Path program histogram: [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, 1] [2024-12-02 10:55:35,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 10:59:12,855 WARN L286 SmtUtils]: Spent 3.63m on a formula simplification. DAG size of input: 2155 DAG size of output: 2329 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 11:00:06,661 WARN L286 SmtUtils]: Spent 53.78s on a formula simplification. DAG size of input: 2329 DAG size of output: 195 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 11:00:06,666 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:00:06,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:00:06 BoogieIcfgContainer [2024-12-02 11:00:06,725 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:00:06,725 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:00:06,725 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:00:06,725 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:00:06,726 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:53:20" (3/4) ... [2024-12-02 11:00:06,728 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 11:00:06,756 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-12-02 11:00:06,758 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 11:00:06,760 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 11:00:06,762 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 11:00:06,946 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 11:00:06,946 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 11:00:06,946 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:00:06,947 INFO L158 Benchmark]: Toolchain (without parser) took 409728.97ms. Allocated memory was 117.4MB in the beginning and 11.2GB in the end (delta: 11.1GB). Free memory was 87.1MB in the beginning and 9.0GB in the end (delta: -8.9GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2024-12-02 11:00:06,948 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:00:06,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 763.84ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 76.6MB in the end (delta: 10.6MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2024-12-02 11:00:06,948 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.64ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 61.9MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:00:06,948 INFO L158 Benchmark]: Boogie Preprocessor took 136.89ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 50.1MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:00:06,948 INFO L158 Benchmark]: RCFGBuilder took 2390.76ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 50.1MB in the beginning and 148.9MB in the end (delta: -98.8MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. [2024-12-02 11:00:06,948 INFO L158 Benchmark]: TraceAbstraction took 406094.87ms. Allocated memory was 209.7MB in the beginning and 11.2GB in the end (delta: 11.0GB). Free memory was 148.9MB in the beginning and 9.0GB in the end (delta: -8.8GB). Peak memory consumption was 8.8GB. Max. memory is 16.1GB. [2024-12-02 11:00:06,949 INFO L158 Benchmark]: Witness Printer took 221.28ms. Allocated memory is still 11.2GB. Free memory was 9.0GB in the beginning and 9.0GB in the end (delta: 37.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 11:00:06,949 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 763.84ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 76.6MB in the end (delta: 10.6MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.64ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 61.9MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 136.89ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 50.1MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 2390.76ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 50.1MB in the beginning and 148.9MB in the end (delta: -98.8MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. * TraceAbstraction took 406094.87ms. Allocated memory was 209.7MB in the beginning and 11.2GB in the end (delta: 11.0GB). Free memory was 148.9MB in the beginning and 9.0GB in the end (delta: -8.8GB). Peak memory consumption was 8.8GB. Max. memory is 16.1GB. * Witness Printer took 221.28ms. Allocated memory is still 11.2GB. Free memory was 9.0GB in the beginning and 9.0GB in the end (delta: 37.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1654]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 134.5s, OverallIterations: 34, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 3.3s, AutomataDifference: 46.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8783 SdHoareTripleChecker+Valid, 22.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8783 mSDsluCounter, 11386 SdHoareTripleChecker+Invalid, 19.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3048 mSDsCounter, 2607 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18159 IncrementalHoareTripleChecker+Invalid, 20766 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2607 mSolverCounterUnsat, 8338 mSDtfsCounter, 18159 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12898 GetRequests, 12815 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294861occurred in iteration=31, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 40.1s AutomataMinimizationTime, 34 MinimizatonAttempts, 171974 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.3s SsaConstructionTime, 5.4s SatisfiabilityAnalysisTime, 28.8s InterpolantComputationTime, 33218 NumberOfCodeBlocks, 33218 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 33168 ConstructedInterpolants, 0 QuantifiedInterpolants, 52303 SizeOfPredicates, 0 NumberOfNonLiveVariables, 21172 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 50 InterpolantComputations, 34 PerfectInterpolantSequences, 102824/103339 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((a26 == 1) && (2 == a3)) && (a5 == 1)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) || (((((((((((a15 == 1) && (a5 == 1)) && (a27 == 0)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a18 == 1))) || (((((((((((a5 == 1) && (a27 == 0)) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a14 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a18 == 1)) && (a6 <= 0))) || (((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a17 == 1)) && (a12 <= 0)) && (a27 == 1))) || (((((((((((a25 == 1) && (a5 == 1)) && (a27 == 0)) && (a16 == 1)) && (a11 == 1)) && (a17 == 1)) && (a20 == 1)) && (a12 <= 0)) && (a3 == 0)) && (a18 == 1)) && (a6 <= 0))) || ((((((((((a15 == 1) && (a5 == 1)) && (a26 != 1)) && (a16 == 1)) && (a11 == 1)) && (a3 == 1)) && (a17 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || (((((((((((a5 == 1) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a14 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((((((((a7 <= 0) && (a25 == 1)) && (a10 <= 0)) && (a5 == 1)) && (a27 == 0)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a12 <= 0)) && (a3 == 0)) && (a18 == 1)) && (a6 <= 0))) || ((((a25 == 1) && (a16 == 1)) && (((((((((a5 == 1) && (a26 != 1)) && (a11 == 1)) && (a17 <= 0)) && (a3 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0)) || ((((((((a5 == 1) && (a26 != 1)) && (a11 == 1)) && (a17 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a6 <= 0)))) && (a18 == 1))) || ((((((((((((a15 == 1) && (a26 == 1)) && (2 == a3)) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a23 <= 0)) && (a6 == 1)) && (a17 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((((((a25 == 1) && (a5 == 1)) && (a16 == 1)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a20 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a1 <= 0))) || (((((a16 == 1) && ((((((((((a26 == 1) && (2 == a3)) && (a10 <= 0)) && (a5 == 1)) && (a12 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a11 <= 0)) && (a6 <= 0)) || (((((((((a26 == 1) && (2 == a3)) && (a10 <= 0)) && (a5 == 1)) && (a12 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a6 == 1)) && (a11 <= 0)))) && (a14 == 1)) && (a27 == 1)) && (a18 == 1))) || ((((((((((((a15 == 1) && (a5 == 1)) && (a26 != 1)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a17 == 1)) && (a20 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a6 <= 0))) || (((((((((((a15 == 1) && (a26 == 1)) && (2 == a3)) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a17 == 1)) && (a27 == 1)) && (a18 == 1))) || (((((((((a5 == 1) && (a16 == 1)) && (a23 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a17 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 <= 0))) || (((((a25 == 1) && (a16 == 1)) && ((((((((((a26 == 1) && (2 == a3)) && (a10 <= 0)) && (a5 == 1)) && (a12 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a11 <= 0)) && (a6 <= 0)) || (((((((((a26 == 1) && (2 == a3)) && (a10 <= 0)) && (a5 == 1)) && (a12 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a6 == 1)) && (a11 <= 0)))) && (a27 == 1)) && (a18 == 1))) || (((((((((((a26 == 1) && (a5 == 1)) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a18 == 1))) || (((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a27 == 1)) && (a3 == 0))) || ((((a25 == 1) && (a16 == 1)) && (((((((((a5 == 1) && (a26 != 1)) && (a11 == 1)) && (a17 <= 0)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) || ((((((((a5 == 1) && (a11 == 1)) && (a17 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a20 == 1)) && (a12 <= 0)) && (a27 <= 0)))) && (a18 == 1))) || ((((((((((a26 == 1) && (a5 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a17 == 1)) && (a12 <= 0)) && (a27 == 1)) || ((((((((a5 == 1) && (a16 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a17 == 1)) && (a12 <= 0)) && (a27 <= 0))) && (a20 == 1))) || (((((((((((((a15 == 1) && (a26 == 1)) && (2 == a3)) && (a25 == 1)) && (a5 == 1)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a6 == 1)) && (a17 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || ((((((a5 == 1) && (a12 == 1)) && (a26 <= 0)) && (a11 <= 0)) && (a3 == 0)) && (a6 <= 0))) || (((((((((((a15 == 1) && (a5 == 1)) && (a27 == 0)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a6 <= 0))) || (((((((((((((a15 == 1) && (a5 == 1)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a6 == 1)) && (a17 == 1)) && (a20 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a18 == 1)) && (a1 <= 0))) || (((((((((((a26 == 1) && (2 == a3)) && (a5 == 1)) && (a12 == 1)) && (a27 == 0)) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a11 <= 0)) && (a18 == 1)) && (a6 <= 0))) || (((((((((((((a15 == 1) && (a26 == 1)) && (2 == a3)) && (a10 <= 0)) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1))) || (((((((((((a7 <= 0) && (a5 == 1)) && (a27 == 0)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a3 == 0)) && (a6 <= 0))) || ((((((((((a15 == 1) && (a5 == 1)) && (a26 != 1)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0))) || ((((((((((((a25 == 1) && (a5 == 1)) && (a27 == 0)) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a14 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a18 == 1))) || ((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 <= 0)) && (a3 == 0)) && (a6 <= 0))) || (((((((((a26 == 1) && (a10 <= 0)) && (a5 == 1)) && (a12 == 1)) && (a17 <= 0)) && (a3 == 1)) && (a11 <= 0)) && (a20 == 1)) && (a27 == 1))) || ((((((((((((a5 == 1) && (a16 == 1)) && (a26 <= 0)) && (a17 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a14 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 <= 0))) || (((((((((((a25 == 1) && (a5 == 1)) && (a16 == 1)) && (a23 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a17 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || ((((a25 == 1) && (((((((((((a5 == 1) && (a26 != 1)) && (a11 == 1)) && (a23 <= 0)) && (a17 == 1)) && (a20 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a6 <= 0)) || (((((((((a5 == 1) && (a11 == 1)) && (a23 <= 0)) && (a3 == 1)) && (a17 == 1)) && (a20 == 1)) && (a12 <= 0)) && (a27 <= 0)) && (a6 <= 0)))) && (a16 == 1)) && (a18 == 1))) || (((((((((((a15 == 1) && (a26 == 1)) && (2 == a3)) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a27 == 1)) && (a18 == 1))) || ((((((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a10 <= 0) && (a5 == 1)) && (a16 == 1)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a1 <= 0))) || ((((((((((((a25 == 1) && (a5 == 1)) && (a27 == 0)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a20 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a6 <= 0))) || ((((((((((2 == a3) && (a5 == 1)) && (a27 == 0)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a6 == 1)) && (a12 <= 0)) && (a18 == 1))) || ((((((((((((((a15 == 1) && (a26 == 1)) && (2 == a3)) && (a25 == 1)) && (a10 <= 0)) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a23 <= 0)) && (a17 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((((((a26 == 1) && (a5 == 1)) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((((a15 == 1) && (a5 == 1)) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a3 == 0)) && (a18 == 1))) || (((((((((((a25 == 1) && (a5 == 1)) && (a27 == 0)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a20 == 1)) && (a12 <= 0)) && (a3 == 0)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1))) || ((((((((((((((a15 == 1) && (2 == a3)) && (a25 == 1)) && (a5 == 1)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a6 == 1)) && (a17 == 1)) && (a20 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a1 <= 0))) || (((((((((((a15 == 1) && (a5 == 1)) && (a27 == 0)) && (a16 == 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(((((((((((a15 == 1) && (a5 == 1)) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || ((((((((((a15 == 1) && (a5 == 1)) && (a26 != 1)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a3 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a6 <= 0))) || ((((((((((((a7 <= 0) && (a5 == 1)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a6 == 1)) && (a14 == 1)) && (a12 <= 0)) && (a3 == 0)) && (a18 == 1)) && (a1 <= 0))) || (((((((((a26 == 1) && (a10 <= 0)) && (a5 == 1)) && (a12 == 1)) && (a3 == 1)) && (a17 == 1)) && (a11 <= 0)) && (a20 == 1)) && (a27 == 1))) || (((((((((((a15 == 1) && (a5 == 1)) && (a27 == 0)) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a3 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a18 == 1)) && (a6 <= 0))) || ((((((((((((a15 == 1) && (a26 == 1)) && (2 == a3)) && (a5 == 1)) && (a12 == 1)) && (a27 == 0)) && (a16 == 1)) && (a17 <= 0)) && (a23 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a18 == 1))) || (((((((((a15 == 1) && (a5 == 1)) && (a16 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a17 == 1)) && (a12 <= 0)) && (a27 <= 0))) || ((((((((((((a26 == 1) && (2 == a3)) && (a10 <= 0)) && (a5 == 1)) && (a12 == 1)) && (a16 == 1)) && (a11 == 1)) && (a17 <= 0)) && (a6 == 1)) && (a14 == 1)) && (a27 == 1)) && (a18 == 1))) || ((((((((((((a15 == 1) && (a7 <= 0)) && (a5 == 1)) && (a26 != 1)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a17 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a6 <= 0))) || ((((((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (a16 == 1)) && (a11 == 1)) && (a23 <= 0)) && (a6 == 1)) && (a17 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a3 == 0)) && (a18 == 1))) RESULT: Ultimate proved your program to be correct! [2024-12-02 11:00:06,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2facf10-f1fd-4a9e-b7b7-47f2beeda161/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE