./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label32.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_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 06b61c7a92b1aafb8eaed71c9c03004c8dc3a1341fd95aec7c0057c1c21f0a3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:50:21,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:21,494 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 19:50:21,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:21,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:21,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:21,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:21,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:21,539 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:21,539 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:21,540 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:21,540 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:21,541 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:21,541 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:21,541 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:21,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:21,542 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:50:21,542 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:50:21,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:21,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:50:21,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:21,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:50:21,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:21,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:50:21,543 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:50:21,543 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:50:21,543 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:21,543 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:21,543 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:21,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:21,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:21,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:21,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:21,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:21,544 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:21,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:21,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:21,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:21,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:21,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:21,545 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:50:21,545 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:50:21,545 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:50:21,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:50:21,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:21,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:21,545 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:21,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:21,545 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_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06b61c7a92b1aafb8eaed71c9c03004c8dc3a1341fd95aec7c0057c1c21f0a3d [2024-11-27 19:50:21,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:21,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:21,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:21,885 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:21,886 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:21,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem03_label32.c [2024-11-27 19:50:24,834 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/data/a395fbaeb/df6852d7453e4e96a70218f2cbe68bc0/FLAG8c1bdd067 [2024-11-27 19:50:25,326 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:50:25,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/sv-benchmarks/c/eca-rers2012/Problem03_label32.c [2024-11-27 19:50:25,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/data/a395fbaeb/df6852d7453e4e96a70218f2cbe68bc0/FLAG8c1bdd067 [2024-11-27 19:50:25,372 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/data/a395fbaeb/df6852d7453e4e96a70218f2cbe68bc0 [2024-11-27 19:50:25,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:50:25,377 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:50:25,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:25,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:50:25,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:50:25,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:25" (1/1) ... [2024-11-27 19:50:25,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b07691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:25, skipping insertion in model container [2024-11-27 19:50:25,387 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:25" (1/1) ... [2024-11-27 19:50:25,469 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:50:26,069 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_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/sv-benchmarks/c/eca-rers2012/Problem03_label32.c[59744,59757] [2024-11-27 19:50:26,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:26,128 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:50:26,399 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_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/sv-benchmarks/c/eca-rers2012/Problem03_label32.c[59744,59757] [2024-11-27 19:50:26,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:26,439 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:50:26,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26 WrapperNode [2024-11-27 19:50:26,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:26,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:26,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:50:26,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:50:26,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,640 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2024-11-27 19:50:26,641 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:26,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:50:26,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:50:26,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:50:26,652 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,673 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,721 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 19:50:26,721 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,787 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:50:26,865 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:50:26,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:50:26,865 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:50:26,866 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (1/1) ... [2024-11-27 19:50:26,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:26,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:26,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:50:26,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:50:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:50:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:50:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:50:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:50:27,050 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:50:27,053 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:50:29,800 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-27 19:50:29,800 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:50:29,818 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:50:29,818 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:50:29,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:29 BoogieIcfgContainer [2024-11-27 19:50:29,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:50:29,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:50:29,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:50:29,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:50:29,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:25" (1/3) ... [2024-11-27 19:50:29,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@baa6270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:29, skipping insertion in model container [2024-11-27 19:50:29,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:26" (2/3) ... [2024-11-27 19:50:29,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@baa6270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:29, skipping insertion in model container [2024-11-27 19:50:29,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:29" (3/3) ... [2024-11-27 19:50:29,836 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem03_label32.c [2024-11-27 19:50:29,855 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:50:29,858 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem03_label32.c that has 1 procedures, 302 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:50:29,943 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:50:29,961 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;@168c9c0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:50:29,961 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:50:29,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:29,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-27 19:50:29,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:29,990 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:29,991 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:29,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:29,997 INFO L85 PathProgramCache]: Analyzing trace with hash -570388181, now seen corresponding path program 1 times [2024-11-27 19:50:30,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:30,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649315151] [2024-11-27 19:50:30,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:30,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:31,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:31,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:31,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649315151] [2024-11-27 19:50:31,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649315151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:31,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:31,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:31,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436314715] [2024-11-27 19:50:31,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:31,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:31,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:31,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:31,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:31,456 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:33,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:33,090 INFO L93 Difference]: Finished difference Result 855 states and 1496 transitions. [2024-11-27 19:50:33,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:33,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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 189 [2024-11-27 19:50:33,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:33,109 INFO L225 Difference]: With dead ends: 855 [2024-11-27 19:50:33,109 INFO L226 Difference]: Without dead ends: 460 [2024-11-27 19:50:33,113 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 [2024-11-27 19:50:33,117 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 107 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:33,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 176 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 19:50:33,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-27 19:50:33,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 459. [2024-11-27 19:50:33,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.5502183406113537) internal successors, (710), 458 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:33,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 710 transitions. [2024-11-27 19:50:33,194 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 710 transitions. Word has length 189 [2024-11-27 19:50:33,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:33,197 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 710 transitions. [2024-11-27 19:50:33,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:33,197 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 710 transitions. [2024-11-27 19:50:33,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-27 19:50:33,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:33,205 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:33,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:50:33,210 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:33,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:33,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2032616869, now seen corresponding path program 1 times [2024-11-27 19:50:33,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:33,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231237392] [2024-11-27 19:50:33,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:33,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:33,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:33,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:33,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231237392] [2024-11-27 19:50:33,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231237392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:33,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:33,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:33,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318400896] [2024-11-27 19:50:33,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:33,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:33,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:33,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:33,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:33,718 INFO L87 Difference]: Start difference. First operand 459 states and 710 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:34,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:34,932 INFO L93 Difference]: Finished difference Result 1340 states and 2081 transitions. [2024-11-27 19:50:34,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:34,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 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 194 [2024-11-27 19:50:34,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:34,939 INFO L225 Difference]: With dead ends: 1340 [2024-11-27 19:50:34,939 INFO L226 Difference]: Without dead ends: 883 [2024-11-27 19:50:34,944 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 [2024-11-27 19:50:34,945 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 249 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:34,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 180 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 19:50:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-27 19:50:34,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 880. [2024-11-27 19:50:35,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 879 states have (on average 1.4675767918088738) internal successors, (1290), 879 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:35,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1290 transitions. [2024-11-27 19:50:35,009 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1290 transitions. Word has length 194 [2024-11-27 19:50:35,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:35,010 INFO L471 AbstractCegarLoop]: Abstraction has 880 states and 1290 transitions. [2024-11-27 19:50:35,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:35,010 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1290 transitions. [2024-11-27 19:50:35,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-27 19:50:35,018 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:35,019 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:35,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:50:35,019 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:35,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:35,020 INFO L85 PathProgramCache]: Analyzing trace with hash -811782164, now seen corresponding path program 1 times [2024-11-27 19:50:35,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:35,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800834300] [2024-11-27 19:50:35,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:35,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:35,314 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:35,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:35,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800834300] [2024-11-27 19:50:35,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800834300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:35,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:35,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:35,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680277547] [2024-11-27 19:50:35,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:35,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:35,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:35,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:35,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:35,319 INFO L87 Difference]: Start difference. First operand 880 states and 1290 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:36,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:36,548 INFO L93 Difference]: Finished difference Result 2594 states and 3819 transitions. [2024-11-27 19:50:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:36,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 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 197 [2024-11-27 19:50:36,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:36,558 INFO L225 Difference]: With dead ends: 2594 [2024-11-27 19:50:36,558 INFO L226 Difference]: Without dead ends: 1716 [2024-11-27 19:50:36,560 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 [2024-11-27 19:50:36,563 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 249 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:36,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 90 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 19:50:36,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-11-27 19:50:36,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1696. [2024-11-27 19:50:36,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.43834808259587) internal successors, (2438), 1695 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:36,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2438 transitions. [2024-11-27 19:50:36,652 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2438 transitions. Word has length 197 [2024-11-27 19:50:36,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:36,652 INFO L471 AbstractCegarLoop]: Abstraction has 1696 states and 2438 transitions. [2024-11-27 19:50:36,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:36,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2438 transitions. [2024-11-27 19:50:36,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-27 19:50:36,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:36,663 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:36,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:50:36,663 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:36,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:36,664 INFO L85 PathProgramCache]: Analyzing trace with hash 48899105, now seen corresponding path program 1 times [2024-11-27 19:50:36,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:36,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608260953] [2024-11-27 19:50:36,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:36,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:50:37,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:37,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608260953] [2024-11-27 19:50:37,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608260953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:37,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:37,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:37,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65437804] [2024-11-27 19:50:37,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:37,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:50:37,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:37,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:50:37,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:50:37,719 INFO L87 Difference]: Start difference. First operand 1696 states and 2438 transitions. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:39,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:39,119 INFO L93 Difference]: Finished difference Result 3531 states and 5126 transitions. [2024-11-27 19:50:39,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:50:39,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 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 204 [2024-11-27 19:50:39,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:39,129 INFO L225 Difference]: With dead ends: 3531 [2024-11-27 19:50:39,129 INFO L226 Difference]: Without dead ends: 1663 [2024-11-27 19:50:39,132 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 [2024-11-27 19:50:39,135 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 299 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:39,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 47 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 19:50:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-27 19:50:39,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1663. [2024-11-27 19:50:39,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1662 states have (on average 1.3243080625752106) internal successors, (2201), 1662 states have internal predecessors, (2201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:39,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2201 transitions. [2024-11-27 19:50:39,188 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2201 transitions. Word has length 204 [2024-11-27 19:50:39,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:39,189 INFO L471 AbstractCegarLoop]: Abstraction has 1663 states and 2201 transitions. [2024-11-27 19:50:39,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:39,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2201 transitions. [2024-11-27 19:50:39,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-27 19:50:39,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:39,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:39,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:50:39,196 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:39,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:39,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1777737916, now seen corresponding path program 1 times [2024-11-27 19:50:39,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:39,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140739217] [2024-11-27 19:50:39,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:39,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:40,097 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:40,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:40,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140739217] [2024-11-27 19:50:40,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140739217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:40,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:40,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:40,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166285751] [2024-11-27 19:50:40,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:40,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:50:40,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:40,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:50:40,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:50:40,101 INFO L87 Difference]: Start difference. First operand 1663 states and 2201 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:41,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:41,720 INFO L93 Difference]: Finished difference Result 4323 states and 5738 transitions. [2024-11-27 19:50:41,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:50:41,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 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 220 [2024-11-27 19:50:41,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:41,731 INFO L225 Difference]: With dead ends: 4323 [2024-11-27 19:50:41,731 INFO L226 Difference]: Without dead ends: 2488 [2024-11-27 19:50:41,734 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 [2024-11-27 19:50:41,735 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 194 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:41,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 94 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 19:50:41,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2024-11-27 19:50:41,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2487. [2024-11-27 19:50:41,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2487 states, 2486 states have (on average 1.3073209975864843) internal successors, (3250), 2486 states have internal predecessors, (3250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 3250 transitions. [2024-11-27 19:50:41,804 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 3250 transitions. Word has length 220 [2024-11-27 19:50:41,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:41,804 INFO L471 AbstractCegarLoop]: Abstraction has 2487 states and 3250 transitions. [2024-11-27 19:50:41,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:41,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 3250 transitions. [2024-11-27 19:50:41,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-27 19:50:41,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:41,812 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:41,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 19:50:41,812 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:41,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:41,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1389386817, now seen corresponding path program 1 times [2024-11-27 19:50:41,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:41,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307866046] [2024-11-27 19:50:41,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:41,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:42,135 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 19:50:42,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:42,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307866046] [2024-11-27 19:50:42,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307866046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:42,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:42,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:42,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646277548] [2024-11-27 19:50:42,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:42,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:42,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:42,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:42,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:42,139 INFO L87 Difference]: Start difference. First operand 2487 states and 3250 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:43,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:43,182 INFO L93 Difference]: Finished difference Result 6628 states and 8636 transitions. [2024-11-27 19:50:43,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:43,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-11-27 19:50:43,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:43,198 INFO L225 Difference]: With dead ends: 6628 [2024-11-27 19:50:43,198 INFO L226 Difference]: Without dead ends: 4143 [2024-11-27 19:50:43,201 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 [2024-11-27 19:50:43,201 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 202 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:43,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 117 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 19:50:43,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2024-11-27 19:50:43,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4140. [2024-11-27 19:50:43,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4140 states, 4139 states have (on average 1.296206813239913) internal successors, (5365), 4139 states have internal predecessors, (5365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:43,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 5365 transitions. [2024-11-27 19:50:43,330 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 5365 transitions. Word has length 222 [2024-11-27 19:50:43,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:43,331 INFO L471 AbstractCegarLoop]: Abstraction has 4140 states and 5365 transitions. [2024-11-27 19:50:43,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:43,331 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 5365 transitions. [2024-11-27 19:50:43,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-27 19:50:43,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:43,342 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:43,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:50:43,342 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:43,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:43,343 INFO L85 PathProgramCache]: Analyzing trace with hash -374783769, now seen corresponding path program 1 times [2024-11-27 19:50:43,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:43,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719491842] [2024-11-27 19:50:43,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:43,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:43,903 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:43,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:43,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719491842] [2024-11-27 19:50:43,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719491842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:43,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981936010] [2024-11-27 19:50:43,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:43,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:43,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:43,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:43,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:50:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:44,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:50:44,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-27 19:50:44,501 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:50:44,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981936010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:44,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:50:44,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-27 19:50:44,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183210335] [2024-11-27 19:50:44,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:44,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:44,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:44,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:44,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:50:44,503 INFO L87 Difference]: Start difference. First operand 4140 states and 5365 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:45,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:45,469 INFO L93 Difference]: Finished difference Result 8287 states and 10744 transitions. [2024-11-27 19:50:45,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:45,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 [2024-11-27 19:50:45,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:45,484 INFO L225 Difference]: With dead ends: 8287 [2024-11-27 19:50:45,484 INFO L226 Difference]: Without dead ends: 4149 [2024-11-27 19:50:45,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:50:45,489 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 35 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:45,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 320 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 19:50:45,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2024-11-27 19:50:45,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 4140. [2024-11-27 19:50:45,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4140 states, 4139 states have (on average 1.285817830393815) internal successors, (5322), 4139 states have internal predecessors, (5322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:45,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 5322 transitions. [2024-11-27 19:50:45,588 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 5322 transitions. Word has length 227 [2024-11-27 19:50:45,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:45,589 INFO L471 AbstractCegarLoop]: Abstraction has 4140 states and 5322 transitions. [2024-11-27 19:50:45,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:45,589 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 5322 transitions. [2024-11-27 19:50:45,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-27 19:50:45,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:45,597 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:45,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 19:50:45,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:45,802 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:45,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:45,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1544899843, now seen corresponding path program 1 times [2024-11-27 19:50:45,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:45,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050390607] [2024-11-27 19:50:45,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:45,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:50:46,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:46,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050390607] [2024-11-27 19:50:46,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050390607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:46,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073585411] [2024-11-27 19:50:46,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:46,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:46,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:46,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:46,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:50:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:46,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:50:46,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:50:46,907 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:50:46,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073585411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:46,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:50:46,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-27 19:50:46,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036776032] [2024-11-27 19:50:46,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:46,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:46,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:46,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:46,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:50:46,911 INFO L87 Difference]: Start difference. First operand 4140 states and 5322 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:48,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:48,050 INFO L93 Difference]: Finished difference Result 12344 states and 15868 transitions. [2024-11-27 19:50:48,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:48,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 233 [2024-11-27 19:50:48,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:48,080 INFO L225 Difference]: With dead ends: 12344 [2024-11-27 19:50:48,080 INFO L226 Difference]: Without dead ends: 8206 [2024-11-27 19:50:48,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:50:48,087 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 30 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:48,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 343 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 19:50:48,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8206 states. [2024-11-27 19:50:48,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8206 to 8200. [2024-11-27 19:50:48,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8200 states, 8199 states have (on average 1.1763629710940358) internal successors, (9645), 8199 states have internal predecessors, (9645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:48,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8200 states to 8200 states and 9645 transitions. [2024-11-27 19:50:48,277 INFO L78 Accepts]: Start accepts. Automaton has 8200 states and 9645 transitions. Word has length 233 [2024-11-27 19:50:48,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:48,277 INFO L471 AbstractCegarLoop]: Abstraction has 8200 states and 9645 transitions. [2024-11-27 19:50:48,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:48,278 INFO L276 IsEmpty]: Start isEmpty. Operand 8200 states and 9645 transitions. [2024-11-27 19:50:48,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-27 19:50:48,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:48,293 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:48,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:50:48,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:48,494 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:48,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:48,495 INFO L85 PathProgramCache]: Analyzing trace with hash -825188989, now seen corresponding path program 1 times [2024-11-27 19:50:48,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:48,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862990285] [2024-11-27 19:50:48,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:48,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:50:48,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:48,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862990285] [2024-11-27 19:50:48,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862990285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:48,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:48,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:48,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947664656] [2024-11-27 19:50:48,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:48,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:48,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:48,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:48,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:48,885 INFO L87 Difference]: Start difference. First operand 8200 states and 9645 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:49,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:49,884 INFO L93 Difference]: Finished difference Result 20458 states and 24504 transitions. [2024-11-27 19:50:49,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:49,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2024-11-27 19:50:49,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:49,918 INFO L225 Difference]: With dead ends: 20458 [2024-11-27 19:50:49,918 INFO L226 Difference]: Without dead ends: 12260 [2024-11-27 19:50:49,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:49,928 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 211 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:49,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 126 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 19:50:49,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12260 states. [2024-11-27 19:50:50,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12260 to 12260. [2024-11-27 19:50:50,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12260 states, 12259 states have (on average 1.1418549637001387) internal successors, (13998), 12259 states have internal predecessors, (13998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:50,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12260 states to 12260 states and 13998 transitions. [2024-11-27 19:50:50,214 INFO L78 Accepts]: Start accepts. Automaton has 12260 states and 13998 transitions. Word has length 243 [2024-11-27 19:50:50,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:50,214 INFO L471 AbstractCegarLoop]: Abstraction has 12260 states and 13998 transitions. [2024-11-27 19:50:50,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:50,215 INFO L276 IsEmpty]: Start isEmpty. Operand 12260 states and 13998 transitions. [2024-11-27 19:50:50,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-27 19:50:50,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:50,232 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:50,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:50:50,232 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:50,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:50,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1491007674, now seen corresponding path program 1 times [2024-11-27 19:50:50,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:50,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522815840] [2024-11-27 19:50:50,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:50,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:50,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:50,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522815840] [2024-11-27 19:50:50,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522815840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:50,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:50,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:50,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583695997] [2024-11-27 19:50:50,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:50,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:50,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:50,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:50,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:50,520 INFO L87 Difference]: Start difference. First operand 12260 states and 13998 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:51,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:51,606 INFO L93 Difference]: Finished difference Result 35312 states and 40338 transitions. [2024-11-27 19:50:51,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:51,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 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 264 [2024-11-27 19:50:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:51,652 INFO L225 Difference]: With dead ends: 35312 [2024-11-27 19:50:51,652 INFO L226 Difference]: Without dead ends: 23054 [2024-11-27 19:50:51,663 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 [2024-11-27 19:50:51,664 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 156 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:51,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 109 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 19:50:51,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23054 states. [2024-11-27 19:50:51,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23054 to 18965. [2024-11-27 19:50:51,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18965 states, 18964 states have (on average 1.1543450748787176) internal successors, (21891), 18964 states have internal predecessors, (21891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18965 states to 18965 states and 21891 transitions. [2024-11-27 19:50:52,012 INFO L78 Accepts]: Start accepts. Automaton has 18965 states and 21891 transitions. Word has length 264 [2024-11-27 19:50:52,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:52,012 INFO L471 AbstractCegarLoop]: Abstraction has 18965 states and 21891 transitions. [2024-11-27 19:50:52,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 18965 states and 21891 transitions. [2024-11-27 19:50:52,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-27 19:50:52,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:52,045 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:52,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 19:50:52,047 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:52,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:52,048 INFO L85 PathProgramCache]: Analyzing trace with hash 416423222, now seen corresponding path program 1 times [2024-11-27 19:50:52,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:52,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795573510] [2024-11-27 19:50:52,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:52,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:52,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:52,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795573510] [2024-11-27 19:50:52,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795573510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:52,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:52,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:52,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005373397] [2024-11-27 19:50:52,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:52,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:52,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:52,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:52,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:52,683 INFO L87 Difference]: Start difference. First operand 18965 states and 21891 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:53,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:53,706 INFO L93 Difference]: Finished difference Result 37934 states and 43790 transitions. [2024-11-27 19:50:53,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:53,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 285 [2024-11-27 19:50:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:53,751 INFO L225 Difference]: With dead ends: 37934 [2024-11-27 19:50:53,752 INFO L226 Difference]: Without dead ends: 18971 [2024-11-27 19:50:53,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:53,768 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 75 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:53,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 277 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 19:50:53,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18971 states. [2024-11-27 19:50:54,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18971 to 18559. [2024-11-27 19:50:54,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18559 states, 18558 states have (on average 1.1431188705679491) internal successors, (21214), 18558 states have internal predecessors, (21214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:54,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18559 states to 18559 states and 21214 transitions. [2024-11-27 19:50:54,103 INFO L78 Accepts]: Start accepts. Automaton has 18559 states and 21214 transitions. Word has length 285 [2024-11-27 19:50:54,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:54,105 INFO L471 AbstractCegarLoop]: Abstraction has 18559 states and 21214 transitions. [2024-11-27 19:50:54,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:54,105 INFO L276 IsEmpty]: Start isEmpty. Operand 18559 states and 21214 transitions. [2024-11-27 19:50:54,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-27 19:50:54,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:54,138 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:54,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 19:50:54,138 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:54,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:54,139 INFO L85 PathProgramCache]: Analyzing trace with hash 2037722579, now seen corresponding path program 1 times [2024-11-27 19:50:54,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:54,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654997819] [2024-11-27 19:50:54,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:54,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:54,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:54,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654997819] [2024-11-27 19:50:54,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654997819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:54,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:54,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:54,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202076776] [2024-11-27 19:50:54,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:54,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:54,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:54,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:54,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:54,421 INFO L87 Difference]: Start difference. First operand 18559 states and 21214 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:55,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:55,524 INFO L93 Difference]: Finished difference Result 35472 states and 40489 transitions. [2024-11-27 19:50:55,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:55,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 327 [2024-11-27 19:50:55,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:55,564 INFO L225 Difference]: With dead ends: 35472 [2024-11-27 19:50:55,564 INFO L226 Difference]: Without dead ends: 16915 [2024-11-27 19:50:55,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:55,579 INFO L435 NwaCegarLoop]: 297 mSDtfsCounter, 201 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:55,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 312 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 19:50:55,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16915 states. [2024-11-27 19:50:55,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16915 to 16912. [2024-11-27 19:50:55,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16912 states, 16911 states have (on average 1.1098101827213056) internal successors, (18768), 16911 states have internal predecessors, (18768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16912 states to 16912 states and 18768 transitions. [2024-11-27 19:50:55,826 INFO L78 Accepts]: Start accepts. Automaton has 16912 states and 18768 transitions. Word has length 327 [2024-11-27 19:50:55,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:55,827 INFO L471 AbstractCegarLoop]: Abstraction has 16912 states and 18768 transitions. [2024-11-27 19:50:55,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:55,827 INFO L276 IsEmpty]: Start isEmpty. Operand 16912 states and 18768 transitions. [2024-11-27 19:50:55,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-27 19:50:55,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:55,850 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 19:50:55,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 19:50:55,851 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:55,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:55,852 INFO L85 PathProgramCache]: Analyzing trace with hash 578772149, now seen corresponding path program 1 times [2024-11-27 19:50:55,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:55,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871257555] [2024-11-27 19:50:55,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:55,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:56,591 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-27 19:50:56,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:56,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871257555] [2024-11-27 19:50:56,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871257555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:56,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535775778] [2024-11-27 19:50:56,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:56,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:56,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:56,595 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:56,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:50:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:56,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:50:56,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-27 19:50:57,189 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:50:57,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535775778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:57,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:50:57,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-27 19:50:57,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451466064] [2024-11-27 19:50:57,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:57,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:57,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:57,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:57,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:50:57,194 INFO L87 Difference]: Start difference. First operand 16912 states and 18768 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:58,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:58,242 INFO L93 Difference]: Finished difference Result 48685 states and 54079 transitions. [2024-11-27 19:50:58,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:58,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 357 [2024-11-27 19:50:58,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:58,311 INFO L225 Difference]: With dead ends: 48685 [2024-11-27 19:50:58,312 INFO L226 Difference]: Without dead ends: 31775 [2024-11-27 19:50:58,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:50:58,329 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 69 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:58,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 99 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 19:50:58,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31775 states. [2024-11-27 19:50:58,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31775 to 30748. [2024-11-27 19:50:58,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30748 states, 30747 states have (on average 1.0960093667674895) internal successors, (33699), 30747 states have internal predecessors, (33699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:58,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30748 states to 30748 states and 33699 transitions. [2024-11-27 19:50:58,889 INFO L78 Accepts]: Start accepts. Automaton has 30748 states and 33699 transitions. Word has length 357 [2024-11-27 19:50:58,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:58,890 INFO L471 AbstractCegarLoop]: Abstraction has 30748 states and 33699 transitions. [2024-11-27 19:50:58,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:58,890 INFO L276 IsEmpty]: Start isEmpty. Operand 30748 states and 33699 transitions. [2024-11-27 19:50:58,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-27 19:50:58,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:58,933 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:58,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 19:50:59,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 19:50:59,134 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:59,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:59,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1164857076, now seen corresponding path program 1 times [2024-11-27 19:50:59,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:59,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013438746] [2024-11-27 19:50:59,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:59,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-27 19:50:59,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:59,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013438746] [2024-11-27 19:50:59,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013438746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:59,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:59,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:59,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383637549] [2024-11-27 19:50:59,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:59,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:59,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:59,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:59,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:59,444 INFO L87 Difference]: Start difference. First operand 30748 states and 33699 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:00,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:00,411 INFO L93 Difference]: Finished difference Result 60882 states and 66689 transitions. [2024-11-27 19:51:00,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:00,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 421 [2024-11-27 19:51:00,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:00,449 INFO L225 Difference]: With dead ends: 60882 [2024-11-27 19:51:00,449 INFO L226 Difference]: Without dead ends: 30136 [2024-11-27 19:51:00,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:00,470 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 214 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:00,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 289 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 19:51:00,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30136 states. [2024-11-27 19:51:00,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30136 to 25056. [2024-11-27 19:51:00,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25056 states, 25055 states have (on average 1.0763121133506286) internal successors, (26967), 25055 states have internal predecessors, (26967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:00,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25056 states to 25056 states and 26967 transitions. [2024-11-27 19:51:00,833 INFO L78 Accepts]: Start accepts. Automaton has 25056 states and 26967 transitions. Word has length 421 [2024-11-27 19:51:00,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:00,833 INFO L471 AbstractCegarLoop]: Abstraction has 25056 states and 26967 transitions. [2024-11-27 19:51:00,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:00,834 INFO L276 IsEmpty]: Start isEmpty. Operand 25056 states and 26967 transitions. [2024-11-27 19:51:00,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-27 19:51:00,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:00,861 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:00,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 19:51:00,862 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:00,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:00,863 INFO L85 PathProgramCache]: Analyzing trace with hash -100622901, now seen corresponding path program 1 times [2024-11-27 19:51:00,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:00,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38068276] [2024-11-27 19:51:00,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:00,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-27 19:51:01,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:01,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38068276] [2024-11-27 19:51:01,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38068276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:01,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:01,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:01,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125692111] [2024-11-27 19:51:01,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:01,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:01,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:01,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:01,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:01,293 INFO L87 Difference]: Start difference. First operand 25056 states and 26967 transitions. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:02,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:02,266 INFO L93 Difference]: Finished difference Result 46644 states and 50158 transitions. [2024-11-27 19:51:02,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:02,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 454 [2024-11-27 19:51:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:02,289 INFO L225 Difference]: With dead ends: 46644 [2024-11-27 19:51:02,290 INFO L226 Difference]: Without dead ends: 21590 [2024-11-27 19:51:02,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:02,305 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 215 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:02,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 306 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 19:51:02,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21590 states. [2024-11-27 19:51:02,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21590 to 20974. [2024-11-27 19:51:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20974 states, 20973 states have (on average 1.0674676965622467) internal successors, (22388), 20973 states have internal predecessors, (22388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:02,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20974 states to 20974 states and 22388 transitions. [2024-11-27 19:51:02,587 INFO L78 Accepts]: Start accepts. Automaton has 20974 states and 22388 transitions. Word has length 454 [2024-11-27 19:51:02,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:02,589 INFO L471 AbstractCegarLoop]: Abstraction has 20974 states and 22388 transitions. [2024-11-27 19:51:02,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:02,590 INFO L276 IsEmpty]: Start isEmpty. Operand 20974 states and 22388 transitions. [2024-11-27 19:51:02,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-27 19:51:02,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:02,611 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:02,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 19:51:02,612 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:02,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:02,613 INFO L85 PathProgramCache]: Analyzing trace with hash -852721927, now seen corresponding path program 1 times [2024-11-27 19:51:02,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:02,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070992971] [2024-11-27 19:51:02,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:02,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:03,356 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:03,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:03,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070992971] [2024-11-27 19:51:03,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070992971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:03,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:03,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:51:03,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781610008] [2024-11-27 19:51:03,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:03,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:03,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:03,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:03,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:03,359 INFO L87 Difference]: Start difference. First operand 20974 states and 22388 transitions. Second operand has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:04,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:04,706 INFO L93 Difference]: Finished difference Result 49474 states and 52813 transitions. [2024-11-27 19:51:04,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:04,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 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 455 [2024-11-27 19:51:04,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:04,708 INFO L225 Difference]: With dead ends: 49474 [2024-11-27 19:51:04,708 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 19:51:04,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:04,724 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 327 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:04,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 73 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 19:51:04,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 19:51:04,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 19:51:04,725 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) [2024-11-27 19:51:04,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 19:51:04,725 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 455 [2024-11-27 19:51:04,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:04,725 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 19:51:04,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 19:51:04,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 19:51:04,729 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 19:51:04,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 19:51:04,733 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:04,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 19:51:08,548 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:51:08,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:51:08 BoogieIcfgContainer [2024-11-27 19:51:08,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:51:08,606 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:51:08,610 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:51:08,611 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:51:08,612 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:29" (3/4) ... [2024-11-27 19:51:08,614 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 19:51:08,662 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-27 19:51:08,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 19:51:08,666 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 19:51:08,669 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 19:51:08,946 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 19:51:08,946 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 19:51:08,946 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:51:08,948 INFO L158 Benchmark]: Toolchain (without parser) took 43571.07ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 86.3MB in the beginning and 1.0GB in the end (delta: -958.1MB). Peak memory consumption was 163.6MB. Max. memory is 16.1GB. [2024-11-27 19:51:08,949 INFO L158 Benchmark]: CDTParser took 1.48ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:51:08,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1062.58ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 75.9MB in the end (delta: 10.2MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2024-11-27 19:51:08,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 200.05ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 74.6MB in the end (delta: 1.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-11-27 19:51:08,951 INFO L158 Benchmark]: Boogie Preprocessor took 222.16ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 62.5MB in the end (delta: 12.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 19:51:08,951 INFO L158 Benchmark]: RCFGBuilder took 2954.41ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 62.5MB in the beginning and 94.0MB in the end (delta: -31.5MB). Peak memory consumption was 83.5MB. Max. memory is 16.1GB. [2024-11-27 19:51:08,952 INFO L158 Benchmark]: TraceAbstraction took 38783.84ms. Allocated memory was 176.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 92.5MB in the beginning and 1.1GB in the end (delta: -977.0MB). Peak memory consumption was 844.3MB. Max. memory is 16.1GB. [2024-11-27 19:51:08,952 INFO L158 Benchmark]: Witness Printer took 340.86ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.0GB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 19:51:08,954 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.48ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1062.58ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 75.9MB in the end (delta: 10.2MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 200.05ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 74.6MB in the end (delta: 1.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 222.16ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 62.5MB in the end (delta: 12.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 2954.41ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 62.5MB in the beginning and 94.0MB in the end (delta: -31.5MB). Peak memory consumption was 83.5MB. Max. memory is 16.1GB. * TraceAbstraction took 38783.84ms. Allocated memory was 176.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 92.5MB in the beginning and 1.1GB in the end (delta: -977.0MB). Peak memory consumption was 844.3MB. Max. memory is 16.1GB. * Witness Printer took 340.86ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.0GB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. 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: 1612]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.8s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 19.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2833 SdHoareTripleChecker+Valid, 16.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2833 mSDsluCounter, 2958 SdHoareTripleChecker+Invalid, 14.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 313 mSDsCounter, 1586 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10014 IncrementalHoareTripleChecker+Invalid, 11600 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1586 mSolverCounterUnsat, 2645 mSDtfsCounter, 10014 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 858 GetRequests, 833 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30748occurred in iteration=13, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 11270 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 5309 NumberOfCodeBlocks, 5309 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 5290 ConstructedInterpolants, 0 QuantifiedInterpolants, 17990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1485 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 2386/2404 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((a5 == 1) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0)) || (((((((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a12 == 1)) && (a3 <= 0)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a11 == 1)) && (a3 == 1)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a11 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a3 == 1)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a3 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((a5 == 1) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((2 == a3) && (a5 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a11 == 1)) && (a3 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a3 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a11 == 1)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a3 <= 0)) && (a11 == 1)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a5 == 1) && (a3 <= 0)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a11 == 1)) && (a3 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a5 == 1) && (a3 <= 0)) && (a11 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a3 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || ((((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a26 <= 0)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a3 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a18 == 1)) && (a27 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1)) && (a18 == 1))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1)) && (a18 == 1))) || ((((((((a5 == 1) && (a26 <= 0)) && (a3 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (2 == a3)) && (a5 == 1)) && (a12 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a12 == 1)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a3 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0))) || ((((((((a15 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a12 == 1)) && (a3 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a18 == 1)) && (a27 <= 0))) || (((((((a5 == 1) && (a3 <= 0)) && (a11 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (2 == a3)) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a3 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a3 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((a5 == 1) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a12 <= 0)) && (a27 == 1)) && (a18 == 1))) || ((((((((2 == a3) && (a5 == 1)) && (a26 <= 0)) && (a11 == 1)) && (a12 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((2 == a3) && (a5 == 1)) && (a12 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) RESULT: Ultimate proved your program to be correct! [2024-11-27 19:51:08,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979b9c3-f4cc-4865-b7b4-852cf90c07e2/bin/uautomizer-verify-aQ6SnzHsRB/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