./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label45.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_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/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_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label45.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/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_85aa4485-2fc9-429a-a666-8e9b6b6b295b/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 0a3986623018c70e6eab20909e61181eb3fd2fad76b9f685fe7d2107541e2f5e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:44:14,281 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:44:14,335 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:44:14,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:44:14,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:44:14,360 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:44:14,361 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:44:14,361 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:44:14,361 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:44:14,361 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:44:14,362 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:44:14,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:44:14,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:44:14,362 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:44:14,362 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:44:14,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:44:14,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:44:14,363 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:44:14,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:44:14,364 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:44:14,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:44:14,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:44:14,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:44:14,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:44:14,364 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:44:14,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:44:14,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:44:14,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:44:14,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:44:14,364 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:44:14,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:44:14,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:44:14,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:44:14,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:44:14,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:44:14,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:44:14,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:44:14,365 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_85aa4485-2fc9-429a-a666-8e9b6b6b295b/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 -> 0a3986623018c70e6eab20909e61181eb3fd2fad76b9f685fe7d2107541e2f5e [2024-12-02 13:44:14,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:44:14,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:44:14,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:44:14,620 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:44:14,620 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:44:14,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/eca-rers2012/Problem10_label45.c [2024-12-02 13:44:17,205 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/data/a7a9d1e0c/eba890e7f7bb4726970010ea8ad82791/FLAGa9a500577 [2024-12-02 13:44:17,460 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:44:17,460 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/sv-benchmarks/c/eca-rers2012/Problem10_label45.c [2024-12-02 13:44:17,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/data/a7a9d1e0c/eba890e7f7bb4726970010ea8ad82791/FLAGa9a500577 [2024-12-02 13:44:17,773 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/data/a7a9d1e0c/eba890e7f7bb4726970010ea8ad82791 [2024-12-02 13:44:17,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:44:17,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:44:17,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:44:17,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:44:17,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:44:17,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:44:17" (1/1) ... [2024-12-02 13:44:17,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24448449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:17, skipping insertion in model container [2024-12-02 13:44:17,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:44:17" (1/1) ... [2024-12-02 13:44:17,809 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:44:17,967 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_85aa4485-2fc9-429a-a666-8e9b6b6b295b/sv-benchmarks/c/eca-rers2012/Problem10_label45.c[4437,4450] [2024-12-02 13:44:18,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:44:18,077 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:44:18,095 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/sv-benchmarks/c/eca-rers2012/Problem10_label45.c[4437,4450] [2024-12-02 13:44:18,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:44:18,164 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:44:18,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18 WrapperNode [2024-12-02 13:44:18,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:44:18,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:44:18,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:44:18,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:44:18,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,231 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2024-12-02 13:44:18,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:44:18,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:44:18,232 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:44:18,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:44:18,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,245 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,265 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 13:44:18,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,284 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,302 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:44:18,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:44:18,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:44:18,308 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:44:18,309 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (1/1) ... [2024-12-02 13:44:18,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:44:18,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:18,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:18,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:44:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:44:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:44:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:44:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:44:18,420 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:44:18,422 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:44:19,340 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-12-02 13:44:19,341 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:44:19,354 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:44:19,354 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:44:19,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:19 BoogieIcfgContainer [2024-12-02 13:44:19,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:44:19,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:44:19,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:44:19,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:44:19,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:44:17" (1/3) ... [2024-12-02 13:44:19,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500e5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:44:19, skipping insertion in model container [2024-12-02 13:44:19,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:18" (2/3) ... [2024-12-02 13:44:19,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500e5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:44:19, skipping insertion in model container [2024-12-02 13:44:19,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:19" (3/3) ... [2024-12-02 13:44:19,363 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem10_label45.c [2024-12-02 13:44:19,377 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:44:19,379 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem10_label45.c that has 1 procedures, 206 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:44:19,432 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:44:19,442 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;@46b11ecd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:44:19,442 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:44:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 13:44:19,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 13:44:19,452 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:19,453 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] [2024-12-02 13:44:19,454 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:19,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:19,458 INFO L85 PathProgramCache]: Analyzing trace with hash 323974986, now seen corresponding path program 1 times [2024-12-02 13:44:19,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:19,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119007119] [2024-12-02 13:44:19,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:19,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:19,715 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 13:44:19,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:19,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119007119] [2024-12-02 13:44:19,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119007119] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:19,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:19,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:44:19,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996811818] [2024-12-02 13:44:19,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:19,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:19,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:19,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:19,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:19,738 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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 13:44:20,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:20,461 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2024-12-02 13:44:20,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:20,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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 38 [2024-12-02 13:44:20,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:20,472 INFO L225 Difference]: With dead ends: 552 [2024-12-02 13:44:20,472 INFO L226 Difference]: Without dead ends: 282 [2024-12-02 13:44:20,475 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 13:44:20,477 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 150 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:20,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 76 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:44:20,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-12-02 13:44:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2024-12-02 13:44:20,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.5373665480427046) internal successors, (432), 281 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 13:44:20,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2024-12-02 13:44:20,519 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 38 [2024-12-02 13:44:20,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:20,519 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2024-12-02 13:44:20,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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 13:44:20,520 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2024-12-02 13:44:20,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 13:44:20,522 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:20,522 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 13:44:20,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:44:20,523 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:20,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1778439955, now seen corresponding path program 1 times [2024-12-02 13:44:20,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:20,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689600093] [2024-12-02 13:44:20,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:44:20,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:20,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689600093] [2024-12-02 13:44:20,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689600093] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:20,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:20,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:44:20,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104739234] [2024-12-02 13:44:20,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:20,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:20,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:20,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:20,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:20,919 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 13:44:21,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:21,352 INFO L93 Difference]: Finished difference Result 701 states and 1076 transitions. [2024-12-02 13:44:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:21,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 107 [2024-12-02 13:44:21,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:21,354 INFO L225 Difference]: With dead ends: 701 [2024-12-02 13:44:21,354 INFO L226 Difference]: Without dead ends: 421 [2024-12-02 13:44:21,355 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 13:44:21,356 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 73 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:21,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 52 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:44:21,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-12-02 13:44:21,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2024-12-02 13:44:21,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.4428571428571428) internal successors, (606), 420 states have internal predecessors, (606), 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 13:44:21,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 606 transitions. [2024-12-02 13:44:21,381 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 606 transitions. Word has length 107 [2024-12-02 13:44:21,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:21,382 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 606 transitions. [2024-12-02 13:44:21,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 13:44:21,382 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 606 transitions. [2024-12-02 13:44:21,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 13:44:21,384 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:21,384 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 13:44:21,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:44:21,385 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:21,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:21,385 INFO L85 PathProgramCache]: Analyzing trace with hash -651687484, now seen corresponding path program 1 times [2024-12-02 13:44:21,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:21,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889749504] [2024-12-02 13:44:21,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:21,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:21,752 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:44:21,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:21,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889749504] [2024-12-02 13:44:21,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889749504] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:21,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:21,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:21,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670526766] [2024-12-02 13:44:21,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:21,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:44:21,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:21,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:44:21,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:44:21,754 INFO L87 Difference]: Start difference. First operand 421 states and 606 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 13:44:22,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:22,448 INFO L93 Difference]: Finished difference Result 998 states and 1484 transitions. [2024-12-02 13:44:22,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:44:22,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2024-12-02 13:44:22,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:22,452 INFO L225 Difference]: With dead ends: 998 [2024-12-02 13:44:22,452 INFO L226 Difference]: Without dead ends: 699 [2024-12-02 13:44:22,453 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 13:44:22,454 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 69 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:22,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 59 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:44:22,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-12-02 13:44:22,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2024-12-02 13:44:22,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.478510028653295) internal successors, (1032), 698 states have internal predecessors, (1032), 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 13:44:22,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1032 transitions. [2024-12-02 13:44:22,481 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1032 transitions. Word has length 113 [2024-12-02 13:44:22,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:22,481 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 1032 transitions. [2024-12-02 13:44:22,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 13:44:22,482 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1032 transitions. [2024-12-02 13:44:22,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 13:44:22,484 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:22,484 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 13:44:22,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:44:22,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:22,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:22,485 INFO L85 PathProgramCache]: Analyzing trace with hash 715593968, now seen corresponding path program 1 times [2024-12-02 13:44:22,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:22,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786207786] [2024-12-02 13:44:22,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:22,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:44:22,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:22,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786207786] [2024-12-02 13:44:22,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786207786] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:22,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:22,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:44:22,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552201665] [2024-12-02 13:44:22,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:22,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:22,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:22,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:22,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:22,684 INFO L87 Difference]: Start difference. First operand 699 states and 1032 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:23,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:23,199 INFO L93 Difference]: Finished difference Result 1952 states and 2918 transitions. [2024-12-02 13:44:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:23,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-12-02 13:44:23,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:23,204 INFO L225 Difference]: With dead ends: 1952 [2024-12-02 13:44:23,204 INFO L226 Difference]: Without dead ends: 1255 [2024-12-02 13:44:23,205 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 13:44:23,206 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 51 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:23,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 78 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:44:23,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-12-02 13:44:23,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 977. [2024-12-02 13:44:23,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.3565573770491803) internal successors, (1324), 976 states have internal predecessors, (1324), 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 13:44:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1324 transitions. [2024-12-02 13:44:23,235 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1324 transitions. Word has length 132 [2024-12-02 13:44:23,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:23,236 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1324 transitions. [2024-12-02 13:44:23,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1324 transitions. [2024-12-02 13:44:23,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 13:44:23,238 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:23,238 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:44:23,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:44:23,238 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:23,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:23,239 INFO L85 PathProgramCache]: Analyzing trace with hash -555992780, now seen corresponding path program 1 times [2024-12-02 13:44:23,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:23,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944155869] [2024-12-02 13:44:23,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:23,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:23,612 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:44:23,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:23,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944155869] [2024-12-02 13:44:23,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944155869] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:23,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:23,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:23,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300105116] [2024-12-02 13:44:23,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:23,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:44:23,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:23,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:44:23,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:44:23,614 INFO L87 Difference]: Start difference. First operand 977 states and 1324 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 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 13:44:24,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:24,129 INFO L93 Difference]: Finished difference Result 1813 states and 2498 transitions. [2024-12-02 13:44:24,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:44:24,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 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 156 [2024-12-02 13:44:24,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:24,133 INFO L225 Difference]: With dead ends: 1813 [2024-12-02 13:44:24,134 INFO L226 Difference]: Without dead ends: 977 [2024-12-02 13:44:24,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:44:24,135 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 87 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:24,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 88 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:44:24,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-12-02 13:44:24,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2024-12-02 13:44:24,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.3514344262295082) internal successors, (1319), 976 states have internal predecessors, (1319), 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 13:44:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1319 transitions. [2024-12-02 13:44:24,160 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1319 transitions. Word has length 156 [2024-12-02 13:44:24,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:24,160 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1319 transitions. [2024-12-02 13:44:24,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 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 13:44:24,160 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1319 transitions. [2024-12-02 13:44:24,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 13:44:24,162 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:24,162 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, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 13:44:24,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:44:24,163 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:24,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:24,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1954640871, now seen corresponding path program 1 times [2024-12-02 13:44:24,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:24,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161632904] [2024-12-02 13:44:24,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:24,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:24,321 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 13:44:24,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:24,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161632904] [2024-12-02 13:44:24,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161632904] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:24,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:24,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:44:24,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270024231] [2024-12-02 13:44:24,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:24,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:24,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:24,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:24,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:24,322 INFO L87 Difference]: Start difference. First operand 977 states and 1319 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 13:44:24,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:24,779 INFO L93 Difference]: Finished difference Result 2230 states and 3079 transitions. [2024-12-02 13:44:24,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:24,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 173 [2024-12-02 13:44:24,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:24,784 INFO L225 Difference]: With dead ends: 2230 [2024-12-02 13:44:24,784 INFO L226 Difference]: Without dead ends: 1394 [2024-12-02 13:44:24,785 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 13:44:24,786 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 107 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:24,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 34 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:44:24,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-12-02 13:44:24,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2024-12-02 13:44:24,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.2814070351758795) internal successors, (1785), 1393 states have internal predecessors, (1785), 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 13:44:24,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1785 transitions. [2024-12-02 13:44:24,820 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1785 transitions. Word has length 173 [2024-12-02 13:44:24,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:24,820 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1785 transitions. [2024-12-02 13:44:24,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 13:44:24,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1785 transitions. [2024-12-02 13:44:24,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-12-02 13:44:24,823 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:24,823 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, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 13:44:24,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:44:24,823 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:24,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:24,823 INFO L85 PathProgramCache]: Analyzing trace with hash 510441368, now seen corresponding path program 1 times [2024-12-02 13:44:24,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:24,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108290964] [2024-12-02 13:44:24,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:24,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:44:24,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:24,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108290964] [2024-12-02 13:44:24,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108290964] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:24,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:24,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:24,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404902158] [2024-12-02 13:44:24,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:24,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:24,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:24,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:24,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:24,985 INFO L87 Difference]: Start difference. First operand 1394 states and 1785 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 13:44:25,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:25,419 INFO L93 Difference]: Finished difference Result 3203 states and 4181 transitions. [2024-12-02 13:44:25,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:25,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 179 [2024-12-02 13:44:25,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:25,425 INFO L225 Difference]: With dead ends: 3203 [2024-12-02 13:44:25,425 INFO L226 Difference]: Without dead ends: 1950 [2024-12-02 13:44:25,427 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 13:44:25,427 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 69 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:25,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 215 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:44:25,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2024-12-02 13:44:25,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1672. [2024-12-02 13:44:25,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 1.24655894673848) internal successors, (2083), 1671 states have internal predecessors, (2083), 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 13:44:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2083 transitions. [2024-12-02 13:44:25,466 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2083 transitions. Word has length 179 [2024-12-02 13:44:25,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:25,467 INFO L471 AbstractCegarLoop]: Abstraction has 1672 states and 2083 transitions. [2024-12-02 13:44:25,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 13:44:25,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2083 transitions. [2024-12-02 13:44:25,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-12-02 13:44:25,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:25,470 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 13:44:25,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:44:25,471 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:25,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:25,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1308011704, now seen corresponding path program 1 times [2024-12-02 13:44:25,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:25,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767458799] [2024-12-02 13:44:25,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:25,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:44:25,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:25,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767458799] [2024-12-02 13:44:25,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767458799] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:25,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:25,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:25,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294612359] [2024-12-02 13:44:25,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:25,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:25,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:25,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:25,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:25,697 INFO L87 Difference]: Start difference. First operand 1672 states and 2083 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 13:44:26,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:26,134 INFO L93 Difference]: Finished difference Result 3759 states and 4777 transitions. [2024-12-02 13:44:26,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:26,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 227 [2024-12-02 13:44:26,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:26,142 INFO L225 Difference]: With dead ends: 3759 [2024-12-02 13:44:26,142 INFO L226 Difference]: Without dead ends: 2228 [2024-12-02 13:44:26,144 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 13:44:26,145 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 77 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:26,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 189 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:44:26,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2024-12-02 13:44:26,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1811. [2024-12-02 13:44:26,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.181767955801105) internal successors, (2139), 1810 states have internal predecessors, (2139), 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 13:44:26,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2139 transitions. [2024-12-02 13:44:26,191 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2139 transitions. Word has length 227 [2024-12-02 13:44:26,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:26,192 INFO L471 AbstractCegarLoop]: Abstraction has 1811 states and 2139 transitions. [2024-12-02 13:44:26,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 13:44:26,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2139 transitions. [2024-12-02 13:44:26,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-12-02 13:44:26,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:26,196 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:26,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:44:26,197 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:26,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:26,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1226512020, now seen corresponding path program 1 times [2024-12-02 13:44:26,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:26,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578668260] [2024-12-02 13:44:26,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:26,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 228 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:44:26,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:26,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578668260] [2024-12-02 13:44:26,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578668260] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:44:26,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678009285] [2024-12-02 13:44:26,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:26,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:44:26,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:26,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:44:26,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:44:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:26,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 13:44:26,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:28,362 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 125 proven. 122 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 13:44:28,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:44:29,753 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 125 proven. 122 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-12-02 13:44:29,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678009285] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:44:29,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:44:29,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-12-02 13:44:29,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315388638] [2024-12-02 13:44:29,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:44:29,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 13:44:29,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:29,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 13:44:29,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:44:29,757 INFO L87 Difference]: Start difference. First operand 1811 states and 2139 transitions. Second operand has 12 states, 12 states have (on average 42.166666666666664) internal successors, (506), 11 states have internal predecessors, (506), 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 13:44:33,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:33,132 INFO L93 Difference]: Finished difference Result 7853 states and 9218 transitions. [2024-12-02 13:44:33,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 13:44:33,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 42.166666666666664) internal successors, (506), 11 states have internal predecessors, (506), 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 261 [2024-12-02 13:44:33,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:33,151 INFO L225 Difference]: With dead ends: 7853 [2024-12-02 13:44:33,151 INFO L226 Difference]: Without dead ends: 6183 [2024-12-02 13:44:33,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=221, Invalid=429, Unknown=0, NotChecked=0, Total=650 [2024-12-02 13:44:33,154 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 2454 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 3683 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2454 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 4472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 3683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:33,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2454 Valid, 86 Invalid, 4472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 3683 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 13:44:33,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6183 states. [2024-12-02 13:44:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6183 to 2506. [2024-12-02 13:44:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 2505 states have (on average 1.1572854291417165) internal successors, (2899), 2505 states have internal predecessors, (2899), 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 13:44:33,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 2899 transitions. [2024-12-02 13:44:33,237 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 2899 transitions. Word has length 261 [2024-12-02 13:44:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:33,237 INFO L471 AbstractCegarLoop]: Abstraction has 2506 states and 2899 transitions. [2024-12-02 13:44:33,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 42.166666666666664) internal successors, (506), 11 states have internal predecessors, (506), 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 13:44:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 2899 transitions. [2024-12-02 13:44:33,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-12-02 13:44:33,242 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:33,243 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 13:44:33,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:44:33,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:44:33,443 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:33,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:33,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1065311159, now seen corresponding path program 1 times [2024-12-02 13:44:33,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:33,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881321749] [2024-12-02 13:44:33,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:33,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:33,855 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 77 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:44:33,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:33,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881321749] [2024-12-02 13:44:33,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881321749] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:44:33,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573218022] [2024-12-02 13:44:33,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:33,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:44:33,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:33,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:44:33,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:44:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:33,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:44:33,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:34,030 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-12-02 13:44:34,030 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:34,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573218022] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:34,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:44:34,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 13:44:34,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134422463] [2024-12-02 13:44:34,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:34,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:34,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:34,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:34,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:44:34,032 INFO L87 Difference]: Start difference. First operand 2506 states and 2899 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 13:44:34,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:34,420 INFO L93 Difference]: Finished difference Result 5427 states and 6384 transitions. [2024-12-02 13:44:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:34,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 286 [2024-12-02 13:44:34,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:34,427 INFO L225 Difference]: With dead ends: 5427 [2024-12-02 13:44:34,427 INFO L226 Difference]: Without dead ends: 3062 [2024-12-02 13:44:34,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:44:34,429 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 104 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:34,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 226 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:44:34,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2024-12-02 13:44:34,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 2645. [2024-12-02 13:44:34,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 1.1395612708018155) internal successors, (3013), 2644 states have internal predecessors, (3013), 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 13:44:34,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3013 transitions. [2024-12-02 13:44:34,462 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3013 transitions. Word has length 286 [2024-12-02 13:44:34,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:34,463 INFO L471 AbstractCegarLoop]: Abstraction has 2645 states and 3013 transitions. [2024-12-02 13:44:34,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 13:44:34,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3013 transitions. [2024-12-02 13:44:34,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 13:44:34,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:34,466 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, 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, 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] [2024-12-02 13:44:34,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:44:34,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 13:44:34,667 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:34,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:34,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1398974089, now seen corresponding path program 1 times [2024-12-02 13:44:34,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:34,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511934264] [2024-12-02 13:44:34,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:34,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:34,990 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 180 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:44:34,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:34,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511934264] [2024-12-02 13:44:34,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511934264] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:44:34,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592023273] [2024-12-02 13:44:34,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:34,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:44:34,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:34,992 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:44:34,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:44:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:35,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:44:35,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:35,194 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 13:44:35,194 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:44:35,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592023273] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:35,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:44:35,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 13:44:35,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399503203] [2024-12-02 13:44:35,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:35,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:35,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:35,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:35,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:44:35,196 INFO L87 Difference]: Start difference. First operand 2645 states and 3013 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 13:44:35,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:35,541 INFO L93 Difference]: Finished difference Result 5149 states and 5881 transitions. [2024-12-02 13:44:35,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:35,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 300 [2024-12-02 13:44:35,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:35,546 INFO L225 Difference]: With dead ends: 5149 [2024-12-02 13:44:35,546 INFO L226 Difference]: Without dead ends: 2645 [2024-12-02 13:44:35,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:44:35,547 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:35,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 19 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:44:35,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2024-12-02 13:44:35,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2645. [2024-12-02 13:44:35,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 1.126323751891074) internal successors, (2978), 2644 states have internal predecessors, (2978), 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 13:44:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 2978 transitions. [2024-12-02 13:44:35,585 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 2978 transitions. Word has length 300 [2024-12-02 13:44:35,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:35,586 INFO L471 AbstractCegarLoop]: Abstraction has 2645 states and 2978 transitions. [2024-12-02 13:44:35,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 13:44:35,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 2978 transitions. [2024-12-02 13:44:35,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-12-02 13:44:35,592 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:44:35,592 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, 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, 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] [2024-12-02 13:44:35,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:44:35,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 13:44:35,792 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:44:35,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:35,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1472236450, now seen corresponding path program 1 times [2024-12-02 13:44:35,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:44:35,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70683823] [2024-12-02 13:44:35,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:35,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-02 13:44:35,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:44:35,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70683823] [2024-12-02 13:44:35,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70683823] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:44:35,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:44:35,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:44:35,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294641456] [2024-12-02 13:44:35,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:44:35,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:44:35,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:44:35,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:44:35,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:44:35,910 INFO L87 Difference]: Start difference. First operand 2645 states and 2978 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 13:44:36,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:44:36,298 INFO L93 Difference]: Finished difference Result 5703 states and 6411 transitions. [2024-12-02 13:44:36,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:44:36,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 310 [2024-12-02 13:44:36,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:44:36,299 INFO L225 Difference]: With dead ends: 5703 [2024-12-02 13:44:36,299 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 13:44:36,301 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 13:44:36,301 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 104 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:44:36,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 223 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:44:36,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 13:44:36,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 13:44:36,302 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 13:44:36,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 13:44:36,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 310 [2024-12-02 13:44:36,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:44:36,302 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:44:36,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 13:44:36,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 13:44:36,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 13:44:36,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 13:44:36,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:44:36,308 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:44:36,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 13:44:36,888 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:44:36,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:44:36 BoogieIcfgContainer [2024-12-02 13:44:36,905 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:44:36,905 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:44:36,905 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:44:36,905 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:44:36,906 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:19" (3/4) ... [2024-12-02 13:44:36,908 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 13:44:36,920 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-12-02 13:44:36,920 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 13:44:36,921 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 13:44:36,922 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 13:44:37,006 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:44:37,006 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 13:44:37,006 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:44:37,007 INFO L158 Benchmark]: Toolchain (without parser) took 19231.07ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 116.9MB in the beginning and 305.7MB in the end (delta: -188.8MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2024-12-02 13:44:37,007 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 83.3MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:44:37,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.37ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 89.8MB in the end (delta: 27.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 13:44:37,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.53ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 82.1MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:44:37,008 INFO L158 Benchmark]: Boogie Preprocessor took 75.36ms. Allocated memory is still 142.6MB. Free memory was 82.1MB in the beginning and 72.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:44:37,008 INFO L158 Benchmark]: RCFGBuilder took 1046.63ms. Allocated memory is still 142.6MB. Free memory was 72.4MB in the beginning and 89.7MB in the end (delta: -17.3MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2024-12-02 13:44:37,009 INFO L158 Benchmark]: TraceAbstraction took 17548.41ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 89.0MB in the beginning and 313.9MB in the end (delta: -224.9MB). Peak memory consumption was 217.8MB. Max. memory is 16.1GB. [2024-12-02 13:44:37,009 INFO L158 Benchmark]: Witness Printer took 101.13ms. Allocated memory is still 402.7MB. Free memory was 313.9MB in the beginning and 305.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:44:37,010 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 83.3MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.37ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 89.8MB in the end (delta: 27.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.53ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 82.1MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.36ms. Allocated memory is still 142.6MB. Free memory was 82.1MB in the beginning and 72.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1046.63ms. Allocated memory is still 142.6MB. Free memory was 72.4MB in the beginning and 89.7MB in the end (delta: -17.3MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * TraceAbstraction took 17548.41ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 89.0MB in the beginning and 313.9MB in the end (delta: -224.9MB). Peak memory consumption was 217.8MB. Max. memory is 16.1GB. * Witness Printer took 101.13ms. Allocated memory is still 402.7MB. Free memory was 313.9MB in the beginning and 305.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. 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: 128]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.9s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3432 SdHoareTripleChecker+Valid, 8.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3432 mSDsluCounter, 1345 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131 mSDsCounter, 1463 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8181 IncrementalHoareTripleChecker+Invalid, 9644 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1463 mSolverCounterUnsat, 1214 mSDtfsCounter, 8181 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1157 GetRequests, 1113 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2645occurred in iteration=10, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 5067 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 3129 NumberOfCodeBlocks, 3129 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3374 ConstructedInterpolants, 0 QuantifiedInterpolants, 17340 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1206 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 2279/2860 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: 592]: Loop Invariant Derived loop invariant: ((((((((((((a19 <= 9) && (0 <= (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1))))) && (4 <= a10)) && ((0 < (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) || (((a1 >= 0) ? (a1 % 5) : ((a1 % 5) + 5)) != 0))) || (((a10 <= 0) && (0 <= (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1))))) && ((0 < (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) || (((a1 >= 0) ? (a1 % 5) : ((a1 % 5) + 5)) != 0)))) || ((((a10 == 1) && (0 <= (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1))))) && ((0 < (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) || (((a1 >= 0) ? (a1 % 5) : ((a1 % 5) + 5)) != 0))) && (9 <= a19))) || ((((a19 == 9) && (14 == a4)) && (a10 == 2)) && (a12 == 0))) || ((((a19 <= 9) && (0 <= (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1))))) && ((0 < (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) || (((a1 >= 0) ? (a1 % 5) : ((a1 % 5) + 5)) != 0))) && (a10 == 2))) || ((((a10 == 0) && (a19 == 9)) && (14 == a4)) && (a12 == 0))) || (((((a19 == 9) && (0 <= (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1))))) && ((0 < (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) || (((a1 >= 0) ? (a1 % 5) : ((a1 % 5) + 5)) != 0))) && (14 == a4)) && (a12 == 0))) || (((0 <= (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) && ((0 < (331283 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) || (((a1 >= 0) ? (a1 % 5) : ((a1 % 5) + 5)) != 0))) && (a19 <= 7))) || ((((a19 <= 9) && (219 <= a1)) && (14 == a4)) && (a12 == 0))) RESULT: Ultimate proved your program to be correct! [2024-12-02 13:44:37,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa4485-2fc9-429a-a666-8e9b6b6b295b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE