./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i --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_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b745f2eefec39227a3dae672aed32affddda67824dced86b7d9f77df6468e472 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:08:36,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:08:36,431 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:08:36,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:08:36,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:08:36,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:08:36,453 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:08:36,453 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:08:36,454 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:08:36,454 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:08:36,454 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:08:36,454 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:08:36,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:08:36,454 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:08:36,455 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:08:36,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:08:36,455 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:08:36,455 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:08:36,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:08:36,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:08:36,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:08:36,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:08:36,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:08:36,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:08:36,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:08:36,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:08:36,456 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:08:36,456 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:08:36,456 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:08:36,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:08:36,456 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:08:36,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:08:36,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:08:36,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:08:36,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:08:36,457 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:08:36,457 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:08:36,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:08:36,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:08:36,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:08:36,457 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:08:36,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:08:36,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:08:36,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:08:36,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:08:36,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:08:36,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:08:36,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:08:36,458 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_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b745f2eefec39227a3dae672aed32affddda67824dced86b7d9f77df6468e472 [2024-12-02 12:08:36,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:08:36,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:08:36,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:08:36,663 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:08:36,664 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:08:36,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i [2024-12-02 12:08:39,228 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/data/75ec8519b/dc850e741d46443cb410d6bb31dfe47c/FLAGc3174924b [2024-12-02 12:08:39,462 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:08:39,463 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i [2024-12-02 12:08:39,471 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/data/75ec8519b/dc850e741d46443cb410d6bb31dfe47c/FLAGc3174924b [2024-12-02 12:08:39,485 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/data/75ec8519b/dc850e741d46443cb410d6bb31dfe47c [2024-12-02 12:08:39,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:08:39,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:08:39,490 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:08:39,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:08:39,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:08:39,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6877822e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39, skipping insertion in model container [2024-12-02 12:08:39,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,517 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:08:39,639 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_c0200b59-8f00-4644-b0a1-5de1834bf659/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i[917,930] [2024-12-02 12:08:39,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:08:39,699 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:08:39,708 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_c0200b59-8f00-4644-b0a1-5de1834bf659/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i[917,930] [2024-12-02 12:08:39,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:08:39,752 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:08:39,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39 WrapperNode [2024-12-02 12:08:39,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:08:39,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:08:39,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:08:39,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:08:39,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,800 INFO L138 Inliner]: procedures = 29, calls = 191, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 615 [2024-12-02 12:08:39,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:08:39,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:08:39,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:08:39,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:08:39,807 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,811 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,825 INFO L175 MemorySlicer]: Split 160 memory accesses to 5 slices as follows [2, 32, 22, 97, 7]. 61 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 3, 3, 5, 1]. The 16 writes are split as follows [0, 3, 7, 5, 1]. [2024-12-02 12:08:39,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,837 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,845 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:08:39,850 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:08:39,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:08:39,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:08:39,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (1/1) ... [2024-12-02 12:08:39,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:08:39,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:08:39,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:08:39,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:08:39,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:08:39,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 12:08:39,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 12:08:39,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 12:08:39,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 12:08:39,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 12:08:39,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:08:39,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:08:39,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 12:08:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 12:08:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 12:08:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 12:08:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:08:39,904 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:08:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:08:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:08:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:08:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:08:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 12:08:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:08:39,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:08:40,041 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:08:40,043 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:08:40,480 INFO L? ?]: Removed 188 outVars from TransFormulas that were not future-live. [2024-12-02 12:08:40,480 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:08:40,490 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:08:40,491 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 12:08:40,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:08:40 BoogieIcfgContainer [2024-12-02 12:08:40,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:08:40,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:08:40,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:08:40,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:08:40,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:08:39" (1/3) ... [2024-12-02 12:08:40,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f79ee34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:08:40, skipping insertion in model container [2024-12-02 12:08:40,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:08:39" (2/3) ... [2024-12-02 12:08:40,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f79ee34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:08:40, skipping insertion in model container [2024-12-02 12:08:40,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:08:40" (3/3) ... [2024-12-02 12:08:40,499 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-39.i [2024-12-02 12:08:40,512 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:08:40,513 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-ap_file-39.i that has 2 procedures, 120 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:08:40,563 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:08:40,573 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;@3bc956d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:08:40,573 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:08:40,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 12:08:40,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 12:08:40,588 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:40,588 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:40,589 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:08:40,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:40,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1938211499, now seen corresponding path program 1 times [2024-12-02 12:08:40,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:40,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682901352] [2024-12-02 12:08:40,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:40,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:40,861 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 12:08:40,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:40,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682901352] [2024-12-02 12:08:40,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682901352] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:08:40,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193156284] [2024-12-02 12:08:40,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:40,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:08:40,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:08:40,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:08:40,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:08:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:41,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:08:41,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:08:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 12:08:41,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:08:41,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193156284] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:08:41,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:08:41,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 12:08:41,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642371854] [2024-12-02 12:08:41,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:08:41,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:08:41,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:41,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:08:41,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:08:41,160 INFO L87 Difference]: Start difference. First operand has 120 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 12:08:41,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:08:41,207 INFO L93 Difference]: Finished difference Result 233 states and 364 transitions. [2024-12-02 12:08:41,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:08:41,213 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-12-02 12:08:41,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:08:41,218 INFO L225 Difference]: With dead ends: 233 [2024-12-02 12:08:41,218 INFO L226 Difference]: Without dead ends: 116 [2024-12-02 12:08:41,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:08:41,223 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:08:41,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:08:41,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-12-02 12:08:41,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-12-02 12:08:41,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 98 states have (on average 1.4081632653061225) internal successors, (138), 98 states have internal predecessors, (138), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 12:08:41,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 170 transitions. [2024-12-02 12:08:41,255 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 170 transitions. Word has length 128 [2024-12-02 12:08:41,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:08:41,255 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 170 transitions. [2024-12-02 12:08:41,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 12:08:41,256 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 170 transitions. [2024-12-02 12:08:41,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 12:08:41,258 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:41,258 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:41,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:08:41,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0200b59-8f00-4644-b0a1-5de1834bf659/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 12:08:41,459 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:08:41,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:41,459 INFO L85 PathProgramCache]: Analyzing trace with hash -321601841, now seen corresponding path program 1 times [2024-12-02 12:08:41,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:41,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172721029] [2024-12-02 12:08:41,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:41,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 12:08:45,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:45,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172721029] [2024-12-02 12:08:45,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172721029] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:08:45,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:08:45,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 12:08:45,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426621618] [2024-12-02 12:08:45,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:08:45,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 12:08:45,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:45,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 12:08:45,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:08:45,322 INFO L87 Difference]: Start difference. First operand 116 states and 170 transitions. Second operand has 17 states, 16 states have (on average 3.1875) internal successors, (51), 17 states have internal predecessors, (51), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 12:08:47,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:08:47,947 INFO L93 Difference]: Finished difference Result 382 states and 559 transitions. [2024-12-02 12:08:47,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:08:47,947 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.1875) internal successors, (51), 17 states have internal predecessors, (51), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 128 [2024-12-02 12:08:47,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:08:47,951 INFO L225 Difference]: With dead ends: 382 [2024-12-02 12:08:47,951 INFO L226 Difference]: Without dead ends: 269 [2024-12-02 12:08:47,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2024-12-02 12:08:47,953 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 428 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:08:47,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 2087 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 12:08:47,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-12-02 12:08:47,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 252. [2024-12-02 12:08:47,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 224 states have (on average 1.4330357142857142) internal successors, (321), 226 states have internal predecessors, (321), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 12:08:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 369 transitions. [2024-12-02 12:08:47,982 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 369 transitions. Word has length 128 [2024-12-02 12:08:47,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:08:47,982 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 369 transitions. [2024-12-02 12:08:47,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.1875) internal successors, (51), 17 states have internal predecessors, (51), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-12-02 12:08:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 369 transitions. [2024-12-02 12:08:47,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 12:08:47,985 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:47,985 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:47,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:08:47,985 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:08:47,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:47,986 INFO L85 PathProgramCache]: Analyzing trace with hash 358456529, now seen corresponding path program 1 times [2024-12-02 12:08:47,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:47,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504000921] [2024-12-02 12:08:47,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:47,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:48,556 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 12:08:48,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:48,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504000921] [2024-12-02 12:08:48,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504000921] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:08:48,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:08:48,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 12:08:48,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804322900] [2024-12-02 12:08:48,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:08:48,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:08:48,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:48,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:08:48,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:08:48,559 INFO L87 Difference]: Start difference. First operand 252 states and 369 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 12:08:49,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:08:49,269 INFO L93 Difference]: Finished difference Result 587 states and 861 transitions. [2024-12-02 12:08:49,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:08:49,270 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-12-02 12:08:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:08:49,273 INFO L225 Difference]: With dead ends: 587 [2024-12-02 12:08:49,273 INFO L226 Difference]: Without dead ends: 338 [2024-12-02 12:08:49,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:08:49,275 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 321 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:08:49,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 649 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:08:49,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-12-02 12:08:49,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 274. [2024-12-02 12:08:49,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 246 states have (on average 1.434959349593496) internal successors, (353), 248 states have internal predecessors, (353), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 12:08:49,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 401 transitions. [2024-12-02 12:08:49,304 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 401 transitions. Word has length 128 [2024-12-02 12:08:49,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:08:49,305 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 401 transitions. [2024-12-02 12:08:49,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 12:08:49,305 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 401 transitions. [2024-12-02 12:08:49,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 12:08:49,306 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:49,306 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:49,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:08:49,306 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:08:49,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:49,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1909949743, now seen corresponding path program 1 times [2024-12-02 12:08:49,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:49,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388212321] [2024-12-02 12:08:49,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:49,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:08:49,767 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 12:08:49,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:08:49,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388212321] [2024-12-02 12:08:49,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388212321] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:08:49,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:08:49,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 12:08:49,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779695878] [2024-12-02 12:08:49,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:08:49,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:08:49,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:08:49,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:08:49,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:08:49,770 INFO L87 Difference]: Start difference. First operand 274 states and 401 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 12:08:50,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:08:50,285 INFO L93 Difference]: Finished difference Result 553 states and 805 transitions. [2024-12-02 12:08:50,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:08:50,285 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-12-02 12:08:50,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:08:50,287 INFO L225 Difference]: With dead ends: 553 [2024-12-02 12:08:50,287 INFO L226 Difference]: Without dead ends: 282 [2024-12-02 12:08:50,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:08:50,288 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 405 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:08:50,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 691 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:08:50,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-12-02 12:08:50,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 216. [2024-12-02 12:08:50,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 193 states have (on average 1.4196891191709844) internal successors, (274), 194 states have internal predecessors, (274), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 12:08:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 312 transitions. [2024-12-02 12:08:50,308 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 312 transitions. Word has length 128 [2024-12-02 12:08:50,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:08:50,308 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 312 transitions. [2024-12-02 12:08:50,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 12:08:50,308 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 312 transitions. [2024-12-02 12:08:50,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 12:08:50,310 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:08:50,310 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:08:50,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:08:50,310 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:08:50,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:08:50,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1229891373, now seen corresponding path program 1 times [2024-12-02 12:08:50,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:08:50,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735818617] [2024-12-02 12:08:50,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:08:50,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:08:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat