./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd --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 8167bb57c72da66729eaf4d0bfb99f298c96636d95817c5a55fbaebfee04d766 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:33:15,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:33:15,903 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:33:15,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:33:15,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:33:15,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:33:15,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:33:15,943 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:33:15,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:33:15,944 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:33:15,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:33:15,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:33:15,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:33:15,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:33:15,945 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:33:15,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:33:15,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:33:15,946 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:33:15,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:33:15,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:33:15,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:33:15,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:33:15,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:33:15,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:33:15,947 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:33:15,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:33:15,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:33:15,948 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:33:15,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:33:15,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:33:15,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:33:15,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:33:15,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:33:15,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:33:15,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:33:15,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:33:15,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:33:15,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:33:15,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:33:15,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:33:15,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:33:15,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:33:15,950 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_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd 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 -> 8167bb57c72da66729eaf4d0bfb99f298c96636d95817c5a55fbaebfee04d766 [2024-11-13 14:33:16,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:33:16,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:33:16,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:33:16,356 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:33:16,356 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:33:16,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-18.i Unable to find full path for "g++" [2024-11-13 14:33:18,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:33:19,152 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:33:19,154 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-18.i [2024-11-13 14:33:19,179 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/data/ab6241f3f/e6a0d58995ae4575ac25f0d4a7b6b8f0/FLAGfc2bf428e [2024-11-13 14:33:19,225 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/data/ab6241f3f/e6a0d58995ae4575ac25f0d4a7b6b8f0 [2024-11-13 14:33:19,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:33:19,230 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:33:19,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:33:19,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:33:19,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:33:19,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:19,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fade4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19, skipping insertion in model container [2024-11-13 14:33:19,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:19,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:33:19,476 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_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-18.i[916,929] [2024-11-13 14:33:19,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:33:19,619 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:33:19,635 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_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-18.i[916,929] [2024-11-13 14:33:19,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:33:19,745 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:33:19,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19 WrapperNode [2024-11-13 14:33:19,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:33:19,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:33:19,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:33:19,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:33:19,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:19,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:19,863 INFO L138 Inliner]: procedures = 29, calls = 148, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 500 [2024-11-13 14:33:19,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:33:19,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:33:19,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:33:19,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:33:19,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:19,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:19,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:19,944 INFO L175 MemorySlicer]: Split 115 memory accesses to 11 slices as follows [2, 5, 14, 8, 12, 12, 26, 12, 8, 10, 6]. 23 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 13 writes are split as follows [0, 2, 1, 1, 1, 1, 2, 1, 1, 2, 1]. [2024-11-13 14:33:19,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:19,945 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:19,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:19,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:19,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:20,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:20,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:33:20,018 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:33:20,018 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:33:20,018 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:33:20,019 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (1/1) ... [2024-11-13 14:33:20,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:33:20,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:33:20,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:33:20,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:33:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:33:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-13 14:33:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-13 14:33:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-13 14:33:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-13 14:33:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-13 14:33:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-13 14:33:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-13 14:33:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-13 14:33:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-13 14:33:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-13 14:33:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-13 14:33:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 14:33:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 14:33:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 14:33:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 14:33:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 14:33:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 14:33:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-13 14:33:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-13 14:33:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-13 14:33:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-13 14:33:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-13 14:33:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-13 14:33:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-13 14:33:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-13 14:33:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-13 14:33:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-13 14:33:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-13 14:33:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-13 14:33:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-13 14:33:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-13 14:33:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-13 14:33:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-13 14:33:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 14:33:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 14:33:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 14:33:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 14:33:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 14:33:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 14:33:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-13 14:33:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-13 14:33:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-13 14:33:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-13 14:33:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-13 14:33:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-13 14:33:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-13 14:33:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-13 14:33:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-13 14:33:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-13 14:33:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-13 14:33:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-13 14:33:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-13 14:33:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-13 14:33:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-13 14:33:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-13 14:33:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:33:20,131 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:33:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:33:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 14:33:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 14:33:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 14:33:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 14:33:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 14:33:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 14:33:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-13 14:33:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-13 14:33:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-13 14:33:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-13 14:33:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:33:20,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:33:20,410 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:33:20,412 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:33:21,268 INFO L? ?]: Removed 145 outVars from TransFormulas that were not future-live. [2024-11-13 14:33:21,268 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:33:21,288 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:33:21,292 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:33:21,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:33:21 BoogieIcfgContainer [2024-11-13 14:33:21,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:33:21,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:33:21,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:33:21,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:33:21,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:33:19" (1/3) ... [2024-11-13 14:33:21,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7237fd16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:33:21, skipping insertion in model container [2024-11-13 14:33:21,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:33:19" (2/3) ... [2024-11-13 14:33:21,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7237fd16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:33:21, skipping insertion in model container [2024-11-13 14:33:21,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:33:21" (3/3) ... [2024-11-13 14:33:21,308 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-18.i [2024-11-13 14:33:21,326 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:33:21,328 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-18.i that has 2 procedures, 108 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:33:21,400 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:33:21,415 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;@2a48f5c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:33:21,415 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:33:21,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 94 states have internal predecessors, (136), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 14:33:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 14:33:21,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:21,434 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:21,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:21,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:21,443 INFO L85 PathProgramCache]: Analyzing trace with hash 153170432, now seen corresponding path program 1 times [2024-11-13 14:33:21,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:21,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751080164] [2024-11-13 14:33:21,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:21,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:21,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:21,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:21,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:21,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:21,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:21,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:22,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:22,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:22,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:22,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:22,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:22,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:22,050 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:33:22,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:22,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751080164] [2024-11-13 14:33:22,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751080164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:22,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:33:22,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:33:22,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522001643] [2024-11-13 14:33:22,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:22,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:33:22,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:22,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:33:22,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:33:22,109 INFO L87 Difference]: Start difference. First operand has 108 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 94 states have internal predecessors, (136), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 14:33:22,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:22,165 INFO L93 Difference]: Finished difference Result 209 states and 326 transitions. [2024-11-13 14:33:22,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:33:22,167 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2024-11-13 14:33:22,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:22,177 INFO L225 Difference]: With dead ends: 209 [2024-11-13 14:33:22,177 INFO L226 Difference]: Without dead ends: 104 [2024-11-13 14:33:22,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:33:22,186 INFO L432 NwaCegarLoop]: 153 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, 153 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 [2024-11-13 14:33:22,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:33:22,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-13 14:33:22,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-13 14:33:22,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 90 states have (on average 1.4333333333333333) internal successors, (129), 90 states have internal predecessors, (129), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 14:33:22,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 153 transitions. [2024-11-13 14:33:22,262 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 153 transitions. Word has length 107 [2024-11-13 14:33:22,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:22,264 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 153 transitions. [2024-11-13 14:33:22,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 14:33:22,265 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 153 transitions. [2024-11-13 14:33:22,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 14:33:22,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:22,268 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:22,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:33:22,269 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:22,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:22,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1186600788, now seen corresponding path program 1 times [2024-11-13 14:33:22,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:22,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756690999] [2024-11-13 14:33:22,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:22,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:23,636 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:33:23,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:23,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756690999] [2024-11-13 14:33:23,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756690999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:23,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:33:23,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:33:23,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570347657] [2024-11-13 14:33:23,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:23,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:33:23,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:23,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:33:23,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:33:23,642 INFO L87 Difference]: Start difference. First operand 104 states and 153 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:24,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:24,162 INFO L93 Difference]: Finished difference Result 306 states and 453 transitions. [2024-11-13 14:33:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:33:24,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-13 14:33:24,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:24,170 INFO L225 Difference]: With dead ends: 306 [2024-11-13 14:33:24,170 INFO L226 Difference]: Without dead ends: 205 [2024-11-13 14:33:24,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:33:24,172 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 153 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:24,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 615 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:33:24,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-13 14:33:24,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 200. [2024-11-13 14:33:24,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 173 states have (on average 1.4335260115606936) internal successors, (248), 173 states have internal predecessors, (248), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 14:33:24,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 296 transitions. [2024-11-13 14:33:24,232 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 296 transitions. Word has length 107 [2024-11-13 14:33:24,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:24,233 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 296 transitions. [2024-11-13 14:33:24,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:24,234 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 296 transitions. [2024-11-13 14:33:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 14:33:24,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:24,239 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:24,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:33:24,239 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:24,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:24,240 INFO L85 PathProgramCache]: Analyzing trace with hash -147246302, now seen corresponding path program 1 times [2024-11-13 14:33:24,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:24,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788692794] [2024-11-13 14:33:24,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:24,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:25,121 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:33:25,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:25,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788692794] [2024-11-13 14:33:25,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788692794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:25,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:33:25,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:33:25,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985606629] [2024-11-13 14:33:25,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:25,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:33:25,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:25,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:33:25,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:33:25,127 INFO L87 Difference]: Start difference. First operand 200 states and 296 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:25,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:25,525 INFO L93 Difference]: Finished difference Result 402 states and 595 transitions. [2024-11-13 14:33:25,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:33:25,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-13 14:33:25,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:25,528 INFO L225 Difference]: With dead ends: 402 [2024-11-13 14:33:25,529 INFO L226 Difference]: Without dead ends: 205 [2024-11-13 14:33:25,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:33:25,531 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 152 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:25,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 698 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:33:25,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-13 14:33:25,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 200. [2024-11-13 14:33:25,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 173 states have (on average 1.4277456647398843) internal successors, (247), 173 states have internal predecessors, (247), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 14:33:25,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 295 transitions. [2024-11-13 14:33:25,572 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 295 transitions. Word has length 108 [2024-11-13 14:33:25,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:25,573 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 295 transitions. [2024-11-13 14:33:25,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:25,576 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 295 transitions. [2024-11-13 14:33:25,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 14:33:25,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:25,579 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:25,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:33:25,580 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:25,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:25,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1898112232, now seen corresponding path program 1 times [2024-11-13 14:33:25,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:25,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201705783] [2024-11-13 14:33:25,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:25,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:26,514 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:33:26,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:26,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201705783] [2024-11-13 14:33:26,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201705783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:26,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:33:26,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:33:26,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256579764] [2024-11-13 14:33:26,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:26,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:33:26,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:26,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:33:26,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:33:26,519 INFO L87 Difference]: Start difference. First operand 200 states and 295 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:27,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:27,057 INFO L93 Difference]: Finished difference Result 400 states and 592 transitions. [2024-11-13 14:33:27,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:33:27,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-13 14:33:27,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:27,064 INFO L225 Difference]: With dead ends: 400 [2024-11-13 14:33:27,064 INFO L226 Difference]: Without dead ends: 299 [2024-11-13 14:33:27,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:33:27,066 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 256 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:27,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 918 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:33:27,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-13 14:33:27,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 294. [2024-11-13 14:33:27,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 254 states have (on average 1.4251968503937007) internal successors, (362), 254 states have internal predecessors, (362), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-13 14:33:27,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 434 transitions. [2024-11-13 14:33:27,122 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 434 transitions. Word has length 108 [2024-11-13 14:33:27,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:27,122 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 434 transitions. [2024-11-13 14:33:27,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:27,123 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 434 transitions. [2024-11-13 14:33:27,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 14:33:27,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:27,128 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:27,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:33:27,128 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:27,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:27,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1639946794, now seen corresponding path program 1 times [2024-11-13 14:33:27,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:27,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799586775] [2024-11-13 14:33:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:27,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:28,935 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 14:33:28,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:28,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799586775] [2024-11-13 14:33:28,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799586775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:33:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686421126] [2024-11-13 14:33:28,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:28,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:33:28,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:33:28,946 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:33:28,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:33:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:29,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 14:33:29,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:33:29,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 14:33:30,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2024-11-13 14:33:30,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 14:33:30,606 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:33:30,607 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:33:31,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2024-11-13 14:33:31,429 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 14:33:31,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686421126] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:33:31,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:33:31,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 28 [2024-11-13 14:33:31,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713932748] [2024-11-13 14:33:31,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:33:31,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 14:33:31,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:31,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 14:33:31,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:33:31,436 INFO L87 Difference]: Start difference. First operand 294 states and 434 transitions. Second operand has 28 states, 25 states have (on average 5.16) internal successors, (129), 27 states have internal predecessors, (129), 6 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 3 states have call predecessors, (36), 6 states have call successors, (36) [2024-11-13 14:33:35,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:35,068 INFO L93 Difference]: Finished difference Result 1097 states and 1609 transitions. [2024-11-13 14:33:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-13 14:33:35,069 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 5.16) internal successors, (129), 27 states have internal predecessors, (129), 6 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 3 states have call predecessors, (36), 6 states have call successors, (36) Word has length 108 [2024-11-13 14:33:35,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:35,075 INFO L225 Difference]: With dead ends: 1097 [2024-11-13 14:33:35,076 INFO L226 Difference]: Without dead ends: 806 [2024-11-13 14:33:35,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=545, Invalid=2761, Unknown=0, NotChecked=0, Total=3306 [2024-11-13 14:33:35,080 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 1301 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:35,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 2625 Invalid, 1559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [182 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 14:33:35,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-13 14:33:35,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 629. [2024-11-13 14:33:35,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 544 states have (on average 1.4025735294117647) internal successors, (763), 544 states have internal predecessors, (763), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-13 14:33:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 907 transitions. [2024-11-13 14:33:35,185 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 907 transitions. Word has length 108 [2024-11-13 14:33:35,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:35,186 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 907 transitions. [2024-11-13 14:33:35,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 5.16) internal successors, (129), 27 states have internal predecessors, (129), 6 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 3 states have call predecessors, (36), 6 states have call successors, (36) [2024-11-13 14:33:35,186 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 907 transitions. [2024-11-13 14:33:35,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-13 14:33:35,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:35,189 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:35,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:33:35,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:33:35,391 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:35,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:35,391 INFO L85 PathProgramCache]: Analyzing trace with hash 292563630, now seen corresponding path program 1 times [2024-11-13 14:33:35,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:35,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760078357] [2024-11-13 14:33:35,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:35,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:35,990 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:33:35,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:35,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760078357] [2024-11-13 14:33:35,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760078357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:35,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:33:35,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:33:35,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941592701] [2024-11-13 14:33:35,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:35,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:33:35,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:35,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:33:35,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:33:35,993 INFO L87 Difference]: Start difference. First operand 629 states and 907 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:36,348 INFO L93 Difference]: Finished difference Result 1265 states and 1823 transitions. [2024-11-13 14:33:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:33:36,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2024-11-13 14:33:36,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:36,356 INFO L225 Difference]: With dead ends: 1265 [2024-11-13 14:33:36,357 INFO L226 Difference]: Without dead ends: 639 [2024-11-13 14:33:36,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:33:36,360 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 149 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:36,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 623 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:33:36,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-13 14:33:36,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 629. [2024-11-13 14:33:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 544 states have (on average 1.3988970588235294) internal successors, (761), 544 states have internal predecessors, (761), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-13 14:33:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 905 transitions. [2024-11-13 14:33:36,468 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 905 transitions. Word has length 109 [2024-11-13 14:33:36,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:36,468 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 905 transitions. [2024-11-13 14:33:36,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:36,469 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 905 transitions. [2024-11-13 14:33:36,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 14:33:36,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:36,475 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:36,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:33:36,475 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:36,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:36,476 INFO L85 PathProgramCache]: Analyzing trace with hash -14869395, now seen corresponding path program 1 times [2024-11-13 14:33:36,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:36,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143961296] [2024-11-13 14:33:36,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:36,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:33:37,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:37,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143961296] [2024-11-13 14:33:37,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143961296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:37,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:33:37,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:33:37,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138182879] [2024-11-13 14:33:37,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:37,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:33:37,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:37,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:33:37,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:33:37,096 INFO L87 Difference]: Start difference. First operand 629 states and 905 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:37,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:37,520 INFO L93 Difference]: Finished difference Result 1267 states and 1823 transitions. [2024-11-13 14:33:37,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:33:37,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-13 14:33:37,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:37,529 INFO L225 Difference]: With dead ends: 1267 [2024-11-13 14:33:37,531 INFO L226 Difference]: Without dead ends: 641 [2024-11-13 14:33:37,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:33:37,538 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 149 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:37,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 896 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:33:37,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-11-13 14:33:37,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 633. [2024-11-13 14:33:37,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 548 states have (on average 1.395985401459854) internal successors, (765), 548 states have internal predecessors, (765), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-13 14:33:37,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 909 transitions. [2024-11-13 14:33:37,631 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 909 transitions. Word has length 110 [2024-11-13 14:33:37,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:37,632 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 909 transitions. [2024-11-13 14:33:37,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:37,632 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 909 transitions. [2024-11-13 14:33:37,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 14:33:37,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:37,636 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:37,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:33:37,636 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:37,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:37,637 INFO L85 PathProgramCache]: Analyzing trace with hash 127708591, now seen corresponding path program 1 times [2024-11-13 14:33:37,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:37,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71382385] [2024-11-13 14:33:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:37,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:33:38,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:38,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71382385] [2024-11-13 14:33:38,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71382385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:38,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:33:38,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:33:38,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93239830] [2024-11-13 14:33:38,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:38,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:33:38,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:38,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:33:38,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:33:38,526 INFO L87 Difference]: Start difference. First operand 633 states and 909 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:39,027 INFO L93 Difference]: Finished difference Result 1264 states and 1822 transitions. [2024-11-13 14:33:39,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:33:39,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-13 14:33:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:39,062 INFO L225 Difference]: With dead ends: 1264 [2024-11-13 14:33:39,064 INFO L226 Difference]: Without dead ends: 844 [2024-11-13 14:33:39,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:33:39,067 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 280 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:39,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 598 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:33:39,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-11-13 14:33:39,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 839. [2024-11-13 14:33:39,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 726 states have (on average 1.393939393939394) internal successors, (1012), 726 states have internal predecessors, (1012), 96 states have call successors, (96), 16 states have call predecessors, (96), 16 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-13 14:33:39,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1204 transitions. [2024-11-13 14:33:39,164 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1204 transitions. Word has length 110 [2024-11-13 14:33:39,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:39,165 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1204 transitions. [2024-11-13 14:33:39,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:39,166 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1204 transitions. [2024-11-13 14:33:39,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:33:39,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:39,168 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:39,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:33:39,168 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:39,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:39,169 INFO L85 PathProgramCache]: Analyzing trace with hash -767694957, now seen corresponding path program 1 times [2024-11-13 14:33:39,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:39,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903951832] [2024-11-13 14:33:39,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:39,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:33:40,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:40,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903951832] [2024-11-13 14:33:40,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903951832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:40,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:33:40,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 14:33:40,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346744904] [2024-11-13 14:33:40,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:40,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:33:40,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:40,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:33:40,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:33:40,202 INFO L87 Difference]: Start difference. First operand 839 states and 1204 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:41,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:41,619 INFO L93 Difference]: Finished difference Result 2065 states and 2964 transitions. [2024-11-13 14:33:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:33:41,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-13 14:33:41,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:41,630 INFO L225 Difference]: With dead ends: 2065 [2024-11-13 14:33:41,630 INFO L226 Difference]: Without dead ends: 1535 [2024-11-13 14:33:41,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:33:41,634 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 851 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:41,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1594 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:33:41,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-11-13 14:33:41,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1358. [2024-11-13 14:33:41,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1175 states have (on average 1.4) internal successors, (1645), 1175 states have internal predecessors, (1645), 156 states have call successors, (156), 26 states have call predecessors, (156), 26 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-13 14:33:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1957 transitions. [2024-11-13 14:33:41,785 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1957 transitions. Word has length 111 [2024-11-13 14:33:41,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:41,785 INFO L471 AbstractCegarLoop]: Abstraction has 1358 states and 1957 transitions. [2024-11-13 14:33:41,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:41,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1957 transitions. [2024-11-13 14:33:41,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:33:41,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:41,789 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:41,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:33:41,789 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:41,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:41,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1190396783, now seen corresponding path program 1 times [2024-11-13 14:33:41,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:41,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042333050] [2024-11-13 14:33:41,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:41,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:42,507 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:33:42,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:42,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042333050] [2024-11-13 14:33:42,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042333050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:42,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:33:42,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:33:42,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525516375] [2024-11-13 14:33:42,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:42,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:33:42,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:42,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:33:42,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:33:42,510 INFO L87 Difference]: Start difference. First operand 1358 states and 1957 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:42,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:42,914 INFO L93 Difference]: Finished difference Result 2736 states and 3944 transitions. [2024-11-13 14:33:42,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:33:42,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-13 14:33:42,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:42,926 INFO L225 Difference]: With dead ends: 2736 [2024-11-13 14:33:42,926 INFO L226 Difference]: Without dead ends: 1381 [2024-11-13 14:33:42,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:33:42,931 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 245 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:42,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 478 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:33:42,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2024-11-13 14:33:43,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1364. [2024-11-13 14:33:43,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1181 states have (on average 1.3979678238780695) internal successors, (1651), 1181 states have internal predecessors, (1651), 156 states have call successors, (156), 26 states have call predecessors, (156), 26 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-13 14:33:43,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1963 transitions. [2024-11-13 14:33:43,115 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1963 transitions. Word has length 111 [2024-11-13 14:33:43,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:43,116 INFO L471 AbstractCegarLoop]: Abstraction has 1364 states and 1963 transitions. [2024-11-13 14:33:43,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:43,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1963 transitions. [2024-11-13 14:33:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:33:43,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:43,120 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:43,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:33:43,120 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:43,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:43,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1777202797, now seen corresponding path program 1 times [2024-11-13 14:33:43,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:43,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159231141] [2024-11-13 14:33:43,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:43,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:44,298 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:33:44,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:44,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159231141] [2024-11-13 14:33:44,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159231141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:44,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:33:44,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 14:33:44,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869049045] [2024-11-13 14:33:44,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:44,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:33:44,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:44,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:33:44,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:33:44,301 INFO L87 Difference]: Start difference. First operand 1364 states and 1963 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:45,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:33:45,811 INFO L93 Difference]: Finished difference Result 2580 states and 3703 transitions. [2024-11-13 14:33:45,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:33:45,812 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-13 14:33:45,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:33:45,823 INFO L225 Difference]: With dead ends: 2580 [2024-11-13 14:33:45,824 INFO L226 Difference]: Without dead ends: 1539 [2024-11-13 14:33:45,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:33:45,830 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 641 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:33:45,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1569 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:33:45,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2024-11-13 14:33:45,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1362. [2024-11-13 14:33:45,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1179 states have (on average 1.3969465648854962) internal successors, (1647), 1179 states have internal predecessors, (1647), 156 states have call successors, (156), 26 states have call predecessors, (156), 26 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-13 14:33:45,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1959 transitions. [2024-11-13 14:33:45,965 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1959 transitions. Word has length 111 [2024-11-13 14:33:45,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:33:45,967 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1959 transitions. [2024-11-13 14:33:45,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:33:45,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1959 transitions. [2024-11-13 14:33:45,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:33:45,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:33:45,970 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:33:45,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 14:33:45,970 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:33:45,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:33:45,971 INFO L85 PathProgramCache]: Analyzing trace with hash -980164333, now seen corresponding path program 1 times [2024-11-13 14:33:45,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:33:45,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851606720] [2024-11-13 14:33:45,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:33:45,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:33:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:33:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:33:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:33:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:33:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:33:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:33:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:33:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:33:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:33:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:33:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:33:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:33:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:33:49,958 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:33:49,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:33:49,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851606720] [2024-11-13 14:33:49,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851606720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:33:49,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:33:49,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 14:33:49,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149453054] [2024-11-13 14:33:49,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:33:49,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 14:33:49,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:33:49,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 14:33:49,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:33:49,962 INFO L87 Difference]: Start difference. First operand 1362 states and 1959 transitions. Second operand has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 21 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:00,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:00,412 INFO L93 Difference]: Finished difference Result 3613 states and 5195 transitions. [2024-11-13 14:34:00,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-13 14:34:00,414 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 21 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-13 14:34:00,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:00,428 INFO L225 Difference]: With dead ends: 3613 [2024-11-13 14:34:00,429 INFO L226 Difference]: Without dead ends: 2254 [2024-11-13 14:34:00,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=529, Invalid=2227, Unknown=0, NotChecked=0, Total=2756 [2024-11-13 14:34:00,435 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 1676 mSDsluCounter, 3368 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 3625 SdHoareTripleChecker+Invalid, 2282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:00,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 3625 Invalid, 2282 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [201 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 14:34:00,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2024-11-13 14:34:00,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1791. [2024-11-13 14:34:00,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1552 states have (on average 1.3969072164948453) internal successors, (2168), 1552 states have internal predecessors, (2168), 204 states have call successors, (204), 34 states have call predecessors, (204), 34 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2024-11-13 14:34:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2576 transitions. [2024-11-13 14:34:00,657 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2576 transitions. Word has length 111 [2024-11-13 14:34:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:00,658 INFO L471 AbstractCegarLoop]: Abstraction has 1791 states and 2576 transitions. [2024-11-13 14:34:00,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 21 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:00,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2576 transitions. [2024-11-13 14:34:00,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:34:00,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:00,661 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:00,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 14:34:00,661 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:00,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:00,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1766522499, now seen corresponding path program 1 times [2024-11-13 14:34:00,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:00,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138054851] [2024-11-13 14:34:00,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:00,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:01,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:01,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138054851] [2024-11-13 14:34:01,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138054851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:01,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:01,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:34:01,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502047408] [2024-11-13 14:34:01,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:01,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:34:01,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:01,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:34:01,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:34:01,322 INFO L87 Difference]: Start difference. First operand 1791 states and 2576 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:02,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:02,099 INFO L93 Difference]: Finished difference Result 3952 states and 5685 transitions. [2024-11-13 14:34:02,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:34:02,100 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-13 14:34:02,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:02,114 INFO L225 Difference]: With dead ends: 3952 [2024-11-13 14:34:02,114 INFO L226 Difference]: Without dead ends: 2505 [2024-11-13 14:34:02,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:34:02,120 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 394 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:02,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 834 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:34:02,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2024-11-13 14:34:02,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2486. [2024-11-13 14:34:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2149 states have (on average 1.389948813401582) internal successors, (2987), 2149 states have internal predecessors, (2987), 288 states have call successors, (288), 48 states have call predecessors, (288), 48 states have return successors, (288), 288 states have call predecessors, (288), 288 states have call successors, (288) [2024-11-13 14:34:02,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3563 transitions. [2024-11-13 14:34:02,370 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3563 transitions. Word has length 111 [2024-11-13 14:34:02,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:02,371 INFO L471 AbstractCegarLoop]: Abstraction has 2486 states and 3563 transitions. [2024-11-13 14:34:02,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:02,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3563 transitions. [2024-11-13 14:34:02,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 14:34:02,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:02,374 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:02,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 14:34:02,374 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:02,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:02,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2132216841, now seen corresponding path program 1 times [2024-11-13 14:34:02,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:02,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100457337] [2024-11-13 14:34:02,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:02,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:03,239 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:03,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:03,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100457337] [2024-11-13 14:34:03,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100457337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:03,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:03,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:34:03,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322255596] [2024-11-13 14:34:03,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:03,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:34:03,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:03,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:34:03,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:34:03,242 INFO L87 Difference]: Start difference. First operand 2486 states and 3563 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:04,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:04,835 INFO L93 Difference]: Finished difference Result 6205 states and 8932 transitions. [2024-11-13 14:34:04,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:34:04,836 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-13 14:34:04,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:04,865 INFO L225 Difference]: With dead ends: 6205 [2024-11-13 14:34:04,865 INFO L226 Difference]: Without dead ends: 4659 [2024-11-13 14:34:04,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:34:04,872 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 498 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:04,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1597 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:34:04,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4659 states. [2024-11-13 14:34:05,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4659 to 3266. [2024-11-13 14:34:05,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3266 states, 2831 states have (on average 1.3963263864358884) internal successors, (3953), 2831 states have internal predecessors, (3953), 372 states have call successors, (372), 62 states have call predecessors, (372), 62 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-13 14:34:05,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3266 states to 3266 states and 4697 transitions. [2024-11-13 14:34:05,275 INFO L78 Accepts]: Start accepts. Automaton has 3266 states and 4697 transitions. Word has length 112 [2024-11-13 14:34:05,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:05,279 INFO L471 AbstractCegarLoop]: Abstraction has 3266 states and 4697 transitions. [2024-11-13 14:34:05,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:05,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3266 states and 4697 transitions. [2024-11-13 14:34:05,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 14:34:05,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:05,283 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:05,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 14:34:05,284 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:05,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:05,284 INFO L85 PathProgramCache]: Analyzing trace with hash 230871142, now seen corresponding path program 1 times [2024-11-13 14:34:05,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:05,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891839920] [2024-11-13 14:34:05,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:05,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:05,786 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:05,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:05,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891839920] [2024-11-13 14:34:05,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891839920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:05,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:05,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:34:05,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516330209] [2024-11-13 14:34:05,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:05,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:34:05,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:05,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:34:05,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:34:05,788 INFO L87 Difference]: Start difference. First operand 3266 states and 4697 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:06,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:06,291 INFO L93 Difference]: Finished difference Result 6548 states and 9419 transitions. [2024-11-13 14:34:06,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:34:06,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-13 14:34:06,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:06,309 INFO L225 Difference]: With dead ends: 6548 [2024-11-13 14:34:06,310 INFO L226 Difference]: Without dead ends: 3285 [2024-11-13 14:34:06,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:34:06,320 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 234 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:06,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 671 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:34:06,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3285 states. [2024-11-13 14:34:06,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3285 to 3274. [2024-11-13 14:34:06,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3274 states, 2839 states have (on average 1.3952095808383234) internal successors, (3961), 2839 states have internal predecessors, (3961), 372 states have call successors, (372), 62 states have call predecessors, (372), 62 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-13 14:34:06,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4705 transitions. [2024-11-13 14:34:06,628 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4705 transitions. Word has length 112 [2024-11-13 14:34:06,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:06,628 INFO L471 AbstractCegarLoop]: Abstraction has 3274 states and 4705 transitions. [2024-11-13 14:34:06,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:06,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4705 transitions. [2024-11-13 14:34:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 14:34:06,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:06,631 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:06,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 14:34:06,631 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:06,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:06,632 INFO L85 PathProgramCache]: Analyzing trace with hash -54334667, now seen corresponding path program 1 times [2024-11-13 14:34:06,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:06,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563709069] [2024-11-13 14:34:06,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:06,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:07,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:07,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563709069] [2024-11-13 14:34:07,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563709069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:07,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:07,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:34:07,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808369564] [2024-11-13 14:34:07,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:07,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:34:07,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:07,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:34:07,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:34:07,034 INFO L87 Difference]: Start difference. First operand 3274 states and 4705 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:07,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:07,616 INFO L93 Difference]: Finished difference Result 5992 states and 8610 transitions. [2024-11-13 14:34:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:34:07,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-13 14:34:07,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:07,643 INFO L225 Difference]: With dead ends: 5992 [2024-11-13 14:34:07,643 INFO L226 Difference]: Without dead ends: 3395 [2024-11-13 14:34:07,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:34:07,652 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 54 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:07,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 620 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:34:07,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2024-11-13 14:34:07,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 3274. [2024-11-13 14:34:07,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3274 states, 2839 states have (on average 1.388869320183163) internal successors, (3943), 2839 states have internal predecessors, (3943), 372 states have call successors, (372), 62 states have call predecessors, (372), 62 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-13 14:34:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4687 transitions. [2024-11-13 14:34:07,970 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4687 transitions. Word has length 112 [2024-11-13 14:34:07,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:07,972 INFO L471 AbstractCegarLoop]: Abstraction has 3274 states and 4687 transitions. [2024-11-13 14:34:07,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:07,972 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4687 transitions. [2024-11-13 14:34:07,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:34:07,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:07,975 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:07,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 14:34:07,975 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:07,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:07,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1886701528, now seen corresponding path program 1 times [2024-11-13 14:34:07,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:07,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329730653] [2024-11-13 14:34:07,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:07,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:08,443 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:08,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:08,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329730653] [2024-11-13 14:34:08,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329730653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:08,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:08,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:34:08,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077404079] [2024-11-13 14:34:08,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:08,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:34:08,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:08,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:34:08,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:34:08,447 INFO L87 Difference]: Start difference. First operand 3274 states and 4687 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:09,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:09,355 INFO L93 Difference]: Finished difference Result 7536 states and 10799 transitions. [2024-11-13 14:34:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:34:09,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:34:09,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:09,399 INFO L225 Difference]: With dead ends: 7536 [2024-11-13 14:34:09,399 INFO L226 Difference]: Without dead ends: 4805 [2024-11-13 14:34:09,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:34:09,408 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 431 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:09,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1355 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:34:09,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4805 states. [2024-11-13 14:34:09,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4805 to 3065. [2024-11-13 14:34:09,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3065 states, 2658 states have (on average 1.3890142964635064) internal successors, (3692), 2658 states have internal predecessors, (3692), 348 states have call successors, (348), 58 states have call predecessors, (348), 58 states have return successors, (348), 348 states have call predecessors, (348), 348 states have call successors, (348) [2024-11-13 14:34:09,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3065 states to 3065 states and 4388 transitions. [2024-11-13 14:34:09,743 INFO L78 Accepts]: Start accepts. Automaton has 3065 states and 4388 transitions. Word has length 113 [2024-11-13 14:34:09,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:09,743 INFO L471 AbstractCegarLoop]: Abstraction has 3065 states and 4388 transitions. [2024-11-13 14:34:09,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:09,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3065 states and 4388 transitions. [2024-11-13 14:34:09,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:34:09,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:09,749 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:09,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 14:34:09,750 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:09,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:09,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1463999702, now seen corresponding path program 1 times [2024-11-13 14:34:09,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:09,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929448613] [2024-11-13 14:34:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:09,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:10,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:10,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929448613] [2024-11-13 14:34:10,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929448613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:10,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:10,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:34:10,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736645486] [2024-11-13 14:34:10,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:10,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:34:10,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:10,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:34:10,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:34:10,245 INFO L87 Difference]: Start difference. First operand 3065 states and 4388 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:11,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:11,153 INFO L93 Difference]: Finished difference Result 6368 states and 9117 transitions. [2024-11-13 14:34:11,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:34:11,154 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:34:11,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:11,178 INFO L225 Difference]: With dead ends: 6368 [2024-11-13 14:34:11,178 INFO L226 Difference]: Without dead ends: 3306 [2024-11-13 14:34:11,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:34:11,186 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 472 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:11,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 961 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:34:11,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3306 states. [2024-11-13 14:34:11,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3306 to 3285. [2024-11-13 14:34:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 2850 states have (on average 1.388421052631579) internal successors, (3957), 2850 states have internal predecessors, (3957), 372 states have call successors, (372), 62 states have call predecessors, (372), 62 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-13 14:34:11,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4701 transitions. [2024-11-13 14:34:11,462 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4701 transitions. Word has length 113 [2024-11-13 14:34:11,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:11,463 INFO L471 AbstractCegarLoop]: Abstraction has 3285 states and 4701 transitions. [2024-11-13 14:34:11,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:11,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4701 transitions. [2024-11-13 14:34:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:34:11,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:11,467 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:11,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 14:34:11,467 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:11,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:11,468 INFO L85 PathProgramCache]: Analyzing trace with hash 244617076, now seen corresponding path program 1 times [2024-11-13 14:34:11,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:11,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403623726] [2024-11-13 14:34:11,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:11,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:12,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:12,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403623726] [2024-11-13 14:34:12,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403623726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:12,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:12,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:34:12,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041026830] [2024-11-13 14:34:12,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:12,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:34:12,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:12,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:34:12,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:34:12,074 INFO L87 Difference]: Start difference. First operand 3285 states and 4701 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:12,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:12,723 INFO L93 Difference]: Finished difference Result 6462 states and 9249 transitions. [2024-11-13 14:34:12,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:34:12,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:34:12,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:12,744 INFO L225 Difference]: With dead ends: 6462 [2024-11-13 14:34:12,744 INFO L226 Difference]: Without dead ends: 3290 [2024-11-13 14:34:12,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:34:12,752 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 155 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:12,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 735 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:34:12,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2024-11-13 14:34:13,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3279. [2024-11-13 14:34:13,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3279 states, 2844 states have (on average 1.3871308016877637) internal successors, (3945), 2844 states have internal predecessors, (3945), 372 states have call successors, (372), 62 states have call predecessors, (372), 62 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-13 14:34:13,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 4689 transitions. [2024-11-13 14:34:13,028 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 4689 transitions. Word has length 113 [2024-11-13 14:34:13,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:13,029 INFO L471 AbstractCegarLoop]: Abstraction has 3279 states and 4689 transitions. [2024-11-13 14:34:13,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 4689 transitions. [2024-11-13 14:34:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:34:13,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:13,032 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:13,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 14:34:13,032 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:13,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:13,033 INFO L85 PathProgramCache]: Analyzing trace with hash 912110226, now seen corresponding path program 1 times [2024-11-13 14:34:13,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:13,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400479668] [2024-11-13 14:34:13,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:13,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:13,586 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:13,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:13,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400479668] [2024-11-13 14:34:13,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400479668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:13,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:13,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:34:13,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894486732] [2024-11-13 14:34:13,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:13,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:34:13,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:13,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:34:13,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:34:13,590 INFO L87 Difference]: Start difference. First operand 3279 states and 4689 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:14,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:14,106 INFO L93 Difference]: Finished difference Result 6560 states and 9383 transitions. [2024-11-13 14:34:14,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:34:14,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:34:14,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:14,121 INFO L225 Difference]: With dead ends: 6560 [2024-11-13 14:34:14,121 INFO L226 Difference]: Without dead ends: 3284 [2024-11-13 14:34:14,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:34:14,132 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 245 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:14,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 692 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:34:14,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3284 states. [2024-11-13 14:34:14,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3284 to 3273. [2024-11-13 14:34:14,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3273 states, 2838 states have (on average 1.3851303735024665) internal successors, (3931), 2838 states have internal predecessors, (3931), 372 states have call successors, (372), 62 states have call predecessors, (372), 62 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-13 14:34:14,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 4675 transitions. [2024-11-13 14:34:14,433 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 4675 transitions. Word has length 113 [2024-11-13 14:34:14,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:14,434 INFO L471 AbstractCegarLoop]: Abstraction has 3273 states and 4675 transitions. [2024-11-13 14:34:14,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:14,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 4675 transitions. [2024-11-13 14:34:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:34:14,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:14,437 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:14,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 14:34:14,438 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:14,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:14,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1660976933, now seen corresponding path program 1 times [2024-11-13 14:34:14,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:14,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627884101] [2024-11-13 14:34:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:14,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:14,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:14,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627884101] [2024-11-13 14:34:14,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627884101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:14,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:14,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:34:14,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725262061] [2024-11-13 14:34:14,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:14,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:34:14,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:14,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:34:14,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:34:14,629 INFO L87 Difference]: Start difference. First operand 3273 states and 4675 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:14,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:14,861 INFO L93 Difference]: Finished difference Result 6636 states and 9471 transitions. [2024-11-13 14:34:14,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:34:14,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:34:14,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:14,876 INFO L225 Difference]: With dead ends: 6636 [2024-11-13 14:34:14,877 INFO L226 Difference]: Without dead ends: 3366 [2024-11-13 14:34:14,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:34:14,885 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:14,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 581 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:34:14,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2024-11-13 14:34:15,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3366. [2024-11-13 14:34:15,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 2931 states have (on average 1.3729102695325828) internal successors, (4024), 2931 states have internal predecessors, (4024), 372 states have call successors, (372), 62 states have call predecessors, (372), 62 states have return successors, (372), 372 states have call predecessors, (372), 372 states have call successors, (372) [2024-11-13 14:34:15,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 4768 transitions. [2024-11-13 14:34:15,139 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 4768 transitions. Word has length 113 [2024-11-13 14:34:15,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:15,140 INFO L471 AbstractCegarLoop]: Abstraction has 3366 states and 4768 transitions. [2024-11-13 14:34:15,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 4768 transitions. [2024-11-13 14:34:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:34:15,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:15,143 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:15,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 14:34:15,143 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:15,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:15,144 INFO L85 PathProgramCache]: Analyzing trace with hash 865011800, now seen corresponding path program 1 times [2024-11-13 14:34:15,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:15,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14891536] [2024-11-13 14:34:15,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:15,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,418 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:15,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:15,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14891536] [2024-11-13 14:34:15,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14891536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:15,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:15,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:34:15,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146050255] [2024-11-13 14:34:15,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:15,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:34:15,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:15,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:34:15,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:34:15,421 INFO L87 Difference]: Start difference. First operand 3366 states and 4768 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:15,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:15,883 INFO L93 Difference]: Finished difference Result 5296 states and 7515 transitions. [2024-11-13 14:34:15,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:34:15,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:34:15,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:15,897 INFO L225 Difference]: With dead ends: 5296 [2024-11-13 14:34:15,897 INFO L226 Difference]: Without dead ends: 2795 [2024-11-13 14:34:15,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:34:15,904 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 133 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:15,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 968 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:34:15,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2024-11-13 14:34:16,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2663. [2024-11-13 14:34:16,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2663 states, 2312 states have (on average 1.3672145328719723) internal successors, (3161), 2312 states have internal predecessors, (3161), 300 states have call successors, (300), 50 states have call predecessors, (300), 50 states have return successors, (300), 300 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-13 14:34:16,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 3761 transitions. [2024-11-13 14:34:16,105 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 3761 transitions. Word has length 113 [2024-11-13 14:34:16,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:16,106 INFO L471 AbstractCegarLoop]: Abstraction has 2663 states and 3761 transitions. [2024-11-13 14:34:16,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:16,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 3761 transitions. [2024-11-13 14:34:16,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:34:16,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:16,109 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:16,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 14:34:16,109 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:16,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:16,109 INFO L85 PathProgramCache]: Analyzing trace with hash 618615224, now seen corresponding path program 1 times [2024-11-13 14:34:16,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:16,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600384068] [2024-11-13 14:34:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:16,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:16,742 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:16,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:16,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600384068] [2024-11-13 14:34:16,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600384068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:16,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:16,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:34:16,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275221575] [2024-11-13 14:34:16,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:16,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:34:16,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:16,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:34:16,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:34:16,747 INFO L87 Difference]: Start difference. First operand 2663 states and 3761 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:17,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:17,781 INFO L93 Difference]: Finished difference Result 5248 states and 7401 transitions. [2024-11-13 14:34:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:34:17,782 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:34:17,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:17,798 INFO L225 Difference]: With dead ends: 5248 [2024-11-13 14:34:17,799 INFO L226 Difference]: Without dead ends: 4002 [2024-11-13 14:34:17,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:34:17,804 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 372 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:17,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1261 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:34:17,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2024-11-13 14:34:18,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 2816. [2024-11-13 14:34:18,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2816 states, 2451 states have (on average 1.3749490004079967) internal successors, (3370), 2451 states have internal predecessors, (3370), 312 states have call successors, (312), 52 states have call predecessors, (312), 52 states have return successors, (312), 312 states have call predecessors, (312), 312 states have call successors, (312) [2024-11-13 14:34:18,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2816 states to 2816 states and 3994 transitions. [2024-11-13 14:34:18,020 INFO L78 Accepts]: Start accepts. Automaton has 2816 states and 3994 transitions. Word has length 113 [2024-11-13 14:34:18,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:18,021 INFO L471 AbstractCegarLoop]: Abstraction has 2816 states and 3994 transitions. [2024-11-13 14:34:18,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:18,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2816 states and 3994 transitions. [2024-11-13 14:34:18,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:34:18,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:18,024 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:18,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 14:34:18,024 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:18,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:18,025 INFO L85 PathProgramCache]: Analyzing trace with hash 2116185286, now seen corresponding path program 1 times [2024-11-13 14:34:18,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:18,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963026378] [2024-11-13 14:34:18,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:18,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:18,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:18,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963026378] [2024-11-13 14:34:18,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963026378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:18,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:18,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:34:18,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016546858] [2024-11-13 14:34:18,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:18,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:34:18,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:18,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:34:18,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:34:18,385 INFO L87 Difference]: Start difference. First operand 2816 states and 3994 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:18,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:18,890 INFO L93 Difference]: Finished difference Result 5518 states and 7837 transitions. [2024-11-13 14:34:18,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:34:18,891 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:34:18,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:18,906 INFO L225 Difference]: With dead ends: 5518 [2024-11-13 14:34:18,906 INFO L226 Difference]: Without dead ends: 3493 [2024-11-13 14:34:18,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:34:18,911 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 273 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:18,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 704 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:34:18,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3493 states. [2024-11-13 14:34:19,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3493 to 2834. [2024-11-13 14:34:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2469 states have (on average 1.3722154718509518) internal successors, (3388), 2469 states have internal predecessors, (3388), 312 states have call successors, (312), 52 states have call predecessors, (312), 52 states have return successors, (312), 312 states have call predecessors, (312), 312 states have call successors, (312) [2024-11-13 14:34:19,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 4012 transitions. [2024-11-13 14:34:19,145 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 4012 transitions. Word has length 113 [2024-11-13 14:34:19,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:19,146 INFO L471 AbstractCegarLoop]: Abstraction has 2834 states and 4012 transitions. [2024-11-13 14:34:19,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:19,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 4012 transitions. [2024-11-13 14:34:19,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:34:19,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:19,148 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:19,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 14:34:19,149 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:19,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:19,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1553778299, now seen corresponding path program 1 times [2024-11-13 14:34:19,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:19,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535458872] [2024-11-13 14:34:19,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:19,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:19,448 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:19,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:19,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535458872] [2024-11-13 14:34:19,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535458872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:19,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:19,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:34:19,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454860823] [2024-11-13 14:34:19,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:19,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:34:19,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:19,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:34:19,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:34:19,450 INFO L87 Difference]: Start difference. First operand 2834 states and 4012 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:19,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:19,877 INFO L93 Difference]: Finished difference Result 5553 states and 7865 transitions. [2024-11-13 14:34:19,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:34:19,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:34:19,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:19,893 INFO L225 Difference]: With dead ends: 5553 [2024-11-13 14:34:19,893 INFO L226 Difference]: Without dead ends: 2722 [2024-11-13 14:34:19,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:34:19,899 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 152 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:19,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1049 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:34:19,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2024-11-13 14:34:20,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2718. [2024-11-13 14:34:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2367 states have (on average 1.3709336713138995) internal successors, (3245), 2367 states have internal predecessors, (3245), 300 states have call successors, (300), 50 states have call predecessors, (300), 50 states have return successors, (300), 300 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-13 14:34:20,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 3845 transitions. [2024-11-13 14:34:20,156 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 3845 transitions. Word has length 113 [2024-11-13 14:34:20,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:20,156 INFO L471 AbstractCegarLoop]: Abstraction has 2718 states and 3845 transitions. [2024-11-13 14:34:20,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:20,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 3845 transitions. [2024-11-13 14:34:20,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 14:34:20,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:20,160 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:20,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 14:34:20,160 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:20,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:20,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1393640794, now seen corresponding path program 1 times [2024-11-13 14:34:20,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:20,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558230945] [2024-11-13 14:34:20,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:20,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:21,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:21,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558230945] [2024-11-13 14:34:21,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558230945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:21,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:21,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 14:34:21,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577578748] [2024-11-13 14:34:21,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:21,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:34:21,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:21,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:34:21,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:34:21,133 INFO L87 Difference]: Start difference. First operand 2718 states and 3845 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:22,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:22,899 INFO L93 Difference]: Finished difference Result 5347 states and 7537 transitions. [2024-11-13 14:34:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:34:22,900 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-11-13 14:34:22,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:22,918 INFO L225 Difference]: With dead ends: 5347 [2024-11-13 14:34:22,918 INFO L226 Difference]: Without dead ends: 3163 [2024-11-13 14:34:22,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:34:22,925 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 552 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:22,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1690 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 14:34:22,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2024-11-13 14:34:23,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 2827. [2024-11-13 14:34:23,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2827 states, 2462 states have (on average 1.3700243704305444) internal successors, (3373), 2462 states have internal predecessors, (3373), 312 states have call successors, (312), 52 states have call predecessors, (312), 52 states have return successors, (312), 312 states have call predecessors, (312), 312 states have call successors, (312) [2024-11-13 14:34:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 3997 transitions. [2024-11-13 14:34:23,430 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 3997 transitions. Word has length 114 [2024-11-13 14:34:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:23,431 INFO L471 AbstractCegarLoop]: Abstraction has 2827 states and 3997 transitions. [2024-11-13 14:34:23,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:23,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 3997 transitions. [2024-11-13 14:34:23,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 14:34:23,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:23,438 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:23,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 14:34:23,441 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:23,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash 447788888, now seen corresponding path program 1 times [2024-11-13 14:34:23,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:23,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054245344] [2024-11-13 14:34:23,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:23,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:23,961 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:23,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:23,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054245344] [2024-11-13 14:34:23,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054245344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:23,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:23,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:34:23,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542632789] [2024-11-13 14:34:23,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:23,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:34:23,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:23,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:34:23,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:34:23,964 INFO L87 Difference]: Start difference. First operand 2827 states and 3997 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:24,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:24,704 INFO L93 Difference]: Finished difference Result 5541 states and 7848 transitions. [2024-11-13 14:34:24,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:34:24,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-11-13 14:34:24,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:24,724 INFO L225 Difference]: With dead ends: 5541 [2024-11-13 14:34:24,724 INFO L226 Difference]: Without dead ends: 3499 [2024-11-13 14:34:24,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:34:24,734 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 151 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:24,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 628 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:34:24,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3499 states. [2024-11-13 14:34:25,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3499 to 2835. [2024-11-13 14:34:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2470 states have (on average 1.3676113360323887) internal successors, (3378), 2470 states have internal predecessors, (3378), 312 states have call successors, (312), 52 states have call predecessors, (312), 52 states have return successors, (312), 312 states have call predecessors, (312), 312 states have call successors, (312) [2024-11-13 14:34:25,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 4002 transitions. [2024-11-13 14:34:25,087 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 4002 transitions. Word has length 114 [2024-11-13 14:34:25,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:25,088 INFO L471 AbstractCegarLoop]: Abstraction has 2835 states and 4002 transitions. [2024-11-13 14:34:25,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:25,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 4002 transitions. [2024-11-13 14:34:25,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 14:34:25,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:25,096 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:25,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 14:34:25,097 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:25,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:25,097 INFO L85 PathProgramCache]: Analyzing trace with hash -139017126, now seen corresponding path program 1 times [2024-11-13 14:34:25,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:25,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496681513] [2024-11-13 14:34:25,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:25,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:34:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 14:34:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 14:34:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 14:34:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 14:34:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 14:34:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 14:34:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 14:34:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:34:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:34:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 14:34:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:25,835 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:25,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:25,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496681513] [2024-11-13 14:34:25,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496681513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:25,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:25,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:34:25,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765017296] [2024-11-13 14:34:25,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:25,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:34:25,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:34:25,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:34:25,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:34:25,838 INFO L87 Difference]: Start difference. First operand 2835 states and 4002 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:27,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:27,069 INFO L93 Difference]: Finished difference Result 5370 states and 7609 transitions. [2024-11-13 14:34:27,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:34:27,070 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-11-13 14:34:27,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:27,090 INFO L225 Difference]: With dead ends: 5370 [2024-11-13 14:34:27,090 INFO L226 Difference]: Without dead ends: 3638 [2024-11-13 14:34:27,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:34:27,099 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 142 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:27,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1311 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:34:27,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3638 states. [2024-11-13 14:34:27,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3638 to 3049. [2024-11-13 14:34:27,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3049 states, 2656 states have (on average 1.3689759036144578) internal successors, (3636), 2656 states have internal predecessors, (3636), 336 states have call successors, (336), 56 states have call predecessors, (336), 56 states have return successors, (336), 336 states have call predecessors, (336), 336 states have call successors, (336) [2024-11-13 14:34:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 4308 transitions. [2024-11-13 14:34:27,610 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 4308 transitions. Word has length 114 [2024-11-13 14:34:27,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:27,611 INFO L471 AbstractCegarLoop]: Abstraction has 3049 states and 4308 transitions. [2024-11-13 14:34:27,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 4308 transitions. [2024-11-13 14:34:27,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:34:27,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:27,615 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:27,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 14:34:27,616 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:27,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:27,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1896372997, now seen corresponding path program 1 times [2024-11-13 14:34:27,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:34:27,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293755086] [2024-11-13 14:34:27,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:27,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:34:27,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1578498091] [2024-11-13 14:34:27,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:27,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:34:27,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:34:27,730 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:34:27,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:34:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:34:28,517 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:34:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:34:28,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:34:28,927 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:34:28,929 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:34:28,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:34:29,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-13 14:34:29,140 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-13 14:34:29,416 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:34:29,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:34:29 BoogieIcfgContainer [2024-11-13 14:34:29,424 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:34:29,425 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:34:29,426 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:34:29,426 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:34:29,427 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:33:21" (3/4) ... [2024-11-13 14:34:29,430 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:34:29,431 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:34:29,432 INFO L158 Benchmark]: Toolchain (without parser) took 70202.84ms. Allocated memory was 167.8MB in the beginning and 461.4MB in the end (delta: 293.6MB). Free memory was 129.3MB in the beginning and 217.8MB in the end (delta: -88.6MB). Peak memory consumption was 199.9MB. Max. memory is 16.1GB. [2024-11-13 14:34:29,433 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:34:29,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.39ms. Allocated memory is still 167.8MB. Free memory was 129.3MB in the beginning and 115.2MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:34:29,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.19ms. Allocated memory is still 167.8MB. Free memory was 115.2MB in the beginning and 111.3MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:34:29,434 INFO L158 Benchmark]: Boogie Preprocessor took 147.64ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 107.2MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:34:29,435 INFO L158 Benchmark]: RCFGBuilder took 1277.41ms. Allocated memory is still 167.8MB. Free memory was 107.2MB in the beginning and 66.2MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 14:34:29,435 INFO L158 Benchmark]: TraceAbstraction took 68125.83ms. Allocated memory was 167.8MB in the beginning and 461.4MB in the end (delta: 293.6MB). Free memory was 65.6MB in the beginning and 217.9MB in the end (delta: -152.4MB). Peak memory consumption was 141.2MB. Max. memory is 16.1GB. [2024-11-13 14:34:29,436 INFO L158 Benchmark]: Witness Printer took 6.52ms. Allocated memory is still 461.4MB. Free memory was 217.9MB in the beginning and 217.8MB in the end (delta: 96.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:34:29,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.39ms. Allocated memory is still 167.8MB. Free memory was 129.3MB in the beginning and 115.2MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 116.19ms. Allocated memory is still 167.8MB. Free memory was 115.2MB in the beginning and 111.3MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 147.64ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 107.2MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1277.41ms. Allocated memory is still 167.8MB. Free memory was 107.2MB in the beginning and 66.2MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 68125.83ms. Allocated memory was 167.8MB in the beginning and 461.4MB in the end (delta: 293.6MB). Free memory was 65.6MB in the beginning and 217.9MB in the end (delta: -152.4MB). Peak memory consumption was 141.2MB. Max. memory is 16.1GB. * Witness Printer took 6.52ms. Allocated memory is still 461.4MB. Free memory was 217.9MB in the beginning and 217.8MB in the end (delta: 96.8kB). There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of bitwiseOr at line 99, overapproximation of bitwiseOr at line 64, overapproximation of bitwiseAnd at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 99.25; [L22] float var_1_1 = 99.25; [L23] float* var_1_1_Pointer = &(var_1_1); [L24] signed short int var_1_7 = 18477; [L24] signed short int var_1_7 = 18477; [L25] signed short int* var_1_7_Pointer = &(var_1_7); [L26] signed short int var_1_8 = 5; [L26] signed short int var_1_8 = 5; [L27] signed short int* var_1_8_Pointer = &(var_1_8); [L28] float var_1_9 = 5.8; [L28] float var_1_9 = 5.8; [L29] float* var_1_9_Pointer = &(var_1_9); [L30] float var_1_10 = 0.5; [L30] float var_1_10 = 0.5; [L31] float* var_1_10_Pointer = &(var_1_10); [L32] unsigned char var_1_11 = 16; [L32] unsigned char var_1_11 = 16; [L33] unsigned char* var_1_11_Pointer = &(var_1_11); [L34] unsigned char var_1_12 = 50; [L34] unsigned char var_1_12 = 50; [L35] unsigned char* var_1_12_Pointer = &(var_1_12); [L36] unsigned char var_1_13 = 1; [L36] unsigned char var_1_13 = 1; [L37] unsigned char* var_1_13_Pointer = &(var_1_13); [L38] unsigned long int var_1_14 = 256; [L38] unsigned long int var_1_14 = 256; [L39] unsigned long int* var_1_14_Pointer = &(var_1_14); [L40] unsigned char var_1_15 = 0; [L40] unsigned char var_1_15 = 0; [L41] unsigned char* var_1_15_Pointer = &(var_1_15); [L42] unsigned char last_1_var_1_11 = 16; [L43] unsigned long int last_1_var_1_14 = 256; VAL [isInitial=0, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L103] isInitial = 1 [L104] FCALL initially() [L105] COND TRUE 1 [L106] CALL updateLastVariables() [L95] EXPR \read(var_1_11) [L95] last_1_var_1_11 = var_1_11 [L96] EXPR \read(var_1_14) [L96] last_1_var_1_14 = var_1_14 [L106] RET updateLastVariables() [L107] CALL updateVariables() [L74] var_1_7 = __VERIFIER_nondet_short() [L75] EXPR \read(var_1_7) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L75] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L75] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L76] EXPR \read(var_1_7) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L76] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L76] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L77] var_1_8 = __VERIFIER_nondet_short() [L78] EXPR \read(var_1_8) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L78] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L78] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L79] EXPR \read(var_1_8) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L79] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L79] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L80] var_1_9 = __VERIFIER_nondet_float() [L81] EXPR \read(var_1_9) [L81] EXPR var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L81] EXPR var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F [L81] EXPR \read(var_1_9) [L81] EXPR var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L81] EXPR (var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L81] EXPR (var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L81] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L81] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L82] var_1_10 = __VERIFIER_nondet_float() [L83] EXPR \read(var_1_10) [L83] EXPR var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L83] EXPR var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F [L83] EXPR \read(var_1_10) [L83] EXPR var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L83] EXPR (var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L83] EXPR (var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L83] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L83] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L84] var_1_12 = __VERIFIER_nondet_uchar() [L85] EXPR \read(var_1_12) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L85] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L85] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L86] EXPR \read(var_1_12) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L86] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L86] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L87] var_1_13 = __VERIFIER_nondet_uchar() [L88] EXPR \read(var_1_13) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L88] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L88] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L89] EXPR \read(var_1_13) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L89] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L89] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L90] var_1_15 = __VERIFIER_nondet_uchar() [L91] EXPR \read(var_1_15) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L91] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L91] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L92] EXPR \read(var_1_15) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L92] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L92] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L107] RET updateVariables() [L108] CALL step() [L47] EXPR \read(*var_1_8_Pointer) [L47] signed short int stepLocal_3 = (*(var_1_8_Pointer)); [L48] unsigned long int stepLocal_2 = last_1_var_1_14; VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=16383, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L49] COND FALSE !(last_1_var_1_14 > stepLocal_3) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L56] EXPR \read(*var_1_11_Pointer) [L56] EXPR \read(*var_1_7_Pointer) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L56] EXPR (*(var_1_11_Pointer)) & (*(var_1_7_Pointer)) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L56] EXPR \read(*var_1_12_Pointer) [L56] EXPR \read(*var_1_11_Pointer) [L56] EXPR \read(*var_1_11_Pointer) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L56] COND FALSE !(((*(var_1_11_Pointer)) & (*(var_1_7_Pointer))) > (((*(var_1_12_Pointer)) * last_1_var_1_14) * ((*(var_1_11_Pointer)) + (*(var_1_11_Pointer))))) [L61] EXPR \read(*var_1_7_Pointer) [L61] (*(var_1_14_Pointer)) = (*(var_1_7_Pointer)) [L63] EXPR \read(*var_1_11_Pointer) [L63] unsigned char stepLocal_1 = (*(var_1_11_Pointer)); [L64] EXPR \read(*var_1_11_Pointer) [L64] EXPR \read(*var_1_11_Pointer) [L64] EXPR \read(*var_1_14_Pointer) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L64] EXPR (((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer))) [L64] EXPR \read(*var_1_14_Pointer) [L64] EXPR (((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L64] EXPR (*(var_1_11_Pointer)) ^ (((((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer))))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L64] unsigned long int stepLocal_0 = (*(var_1_11_Pointer)) ^ (((((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer))))); [L65] EXPR \read(*var_1_11_Pointer) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L65] COND FALSE !(stepLocal_0 != (*(var_1_11_Pointer))) [L70] (*(var_1_1_Pointer)) = 10.5f VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L108] RET step() [L109] CALL, EXPR property() [L99] EXPR \read(*var_1_11_Pointer) [L99] EXPR \read(*var_1_11_Pointer) [L99] EXPR \read(*var_1_14_Pointer) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L99] EXPR (((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer))) [L99] EXPR \read(*var_1_14_Pointer) [L99] EXPR (((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L99] EXPR (*(var_1_11_Pointer)) ^ (((((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer))))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L99] EXPR \read(*var_1_11_Pointer) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L99] EXPR (((*(var_1_11_Pointer)) ^ (((((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer)))))) != (*(var_1_11_Pointer))) ? (((*(var_1_11_Pointer)) == ((*(var_1_11_Pointer)) - ((*(var_1_7_Pointer)) - (*(var_1_11_Pointer))))) ? ((*(var_1_1_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))) : 1) : ((*(var_1_1_Pointer)) == ((float) 10.5f)) [L99] EXPR \read(*var_1_1_Pointer) [L99] EXPR (((*(var_1_11_Pointer)) ^ (((((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer)))))) != (*(var_1_11_Pointer))) ? (((*(var_1_11_Pointer)) == ((*(var_1_11_Pointer)) - ((*(var_1_7_Pointer)) - (*(var_1_11_Pointer))))) ? ((*(var_1_1_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))) : 1) : ((*(var_1_1_Pointer)) == ((float) 10.5f)) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L99] EXPR ((((*(var_1_11_Pointer)) ^ (((((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer)))))) != (*(var_1_11_Pointer))) ? (((*(var_1_11_Pointer)) == ((*(var_1_11_Pointer)) - ((*(var_1_7_Pointer)) - (*(var_1_11_Pointer))))) ? ((*(var_1_1_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))) : 1) : ((*(var_1_1_Pointer)) == ((float) 10.5f))) && ((last_1_var_1_14 > (*(var_1_8_Pointer))) ? ((((last_1_var_1_11 - (*(var_1_8_Pointer))) + (*(var_1_7_Pointer))) > last_1_var_1_14) ? ((*(var_1_11_Pointer)) == ((unsigned char) (((((*(var_1_12_Pointer))) < ((*(var_1_13_Pointer)))) ? ((*(var_1_12_Pointer))) : ((*(var_1_13_Pointer))))))) : ((*(var_1_11_Pointer)) == ((unsigned char) (*(var_1_12_Pointer))))) : 1) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L99] EXPR ((((*(var_1_11_Pointer)) ^ (((((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer)))))) != (*(var_1_11_Pointer))) ? (((*(var_1_11_Pointer)) == ((*(var_1_11_Pointer)) - ((*(var_1_7_Pointer)) - (*(var_1_11_Pointer))))) ? ((*(var_1_1_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))) : 1) : ((*(var_1_1_Pointer)) == ((float) 10.5f))) && ((last_1_var_1_14 > (*(var_1_8_Pointer))) ? ((((last_1_var_1_11 - (*(var_1_8_Pointer))) + (*(var_1_7_Pointer))) > last_1_var_1_14) ? ((*(var_1_11_Pointer)) == ((unsigned char) (((((*(var_1_12_Pointer))) < ((*(var_1_13_Pointer)))) ? ((*(var_1_12_Pointer))) : ((*(var_1_13_Pointer))))))) : ((*(var_1_11_Pointer)) == ((unsigned char) (*(var_1_12_Pointer))))) : 1) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L99] EXPR (((((*(var_1_11_Pointer)) ^ (((((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer)))))) != (*(var_1_11_Pointer))) ? (((*(var_1_11_Pointer)) == ((*(var_1_11_Pointer)) - ((*(var_1_7_Pointer)) - (*(var_1_11_Pointer))))) ? ((*(var_1_1_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))) : 1) : ((*(var_1_1_Pointer)) == ((float) 10.5f))) && ((last_1_var_1_14 > (*(var_1_8_Pointer))) ? ((((last_1_var_1_11 - (*(var_1_8_Pointer))) + (*(var_1_7_Pointer))) > last_1_var_1_14) ? ((*(var_1_11_Pointer)) == ((unsigned char) (((((*(var_1_12_Pointer))) < ((*(var_1_13_Pointer)))) ? ((*(var_1_12_Pointer))) : ((*(var_1_13_Pointer))))))) : ((*(var_1_11_Pointer)) == ((unsigned char) (*(var_1_12_Pointer))))) : 1)) && ((((*(var_1_11_Pointer)) & (*(var_1_7_Pointer))) > (((*(var_1_12_Pointer)) * last_1_var_1_14) * ((*(var_1_11_Pointer)) + (*(var_1_11_Pointer))))) ? (((*(var_1_15_Pointer)) && ((*(var_1_9_Pointer)) > (*(var_1_10_Pointer)))) ? ((*(var_1_14_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer)))) : 1) : ((*(var_1_14_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L99] EXPR (((((*(var_1_11_Pointer)) ^ (((((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer)))))) != (*(var_1_11_Pointer))) ? (((*(var_1_11_Pointer)) == ((*(var_1_11_Pointer)) - ((*(var_1_7_Pointer)) - (*(var_1_11_Pointer))))) ? ((*(var_1_1_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))) : 1) : ((*(var_1_1_Pointer)) == ((float) 10.5f))) && ((last_1_var_1_14 > (*(var_1_8_Pointer))) ? ((((last_1_var_1_11 - (*(var_1_8_Pointer))) + (*(var_1_7_Pointer))) > last_1_var_1_14) ? ((*(var_1_11_Pointer)) == ((unsigned char) (((((*(var_1_12_Pointer))) < ((*(var_1_13_Pointer)))) ? ((*(var_1_12_Pointer))) : ((*(var_1_13_Pointer))))))) : ((*(var_1_11_Pointer)) == ((unsigned char) (*(var_1_12_Pointer))))) : 1)) && ((((*(var_1_11_Pointer)) & (*(var_1_7_Pointer))) > (((*(var_1_12_Pointer)) * last_1_var_1_14) * ((*(var_1_11_Pointer)) + (*(var_1_11_Pointer))))) ? (((*(var_1_15_Pointer)) && ((*(var_1_9_Pointer)) > (*(var_1_10_Pointer)))) ? ((*(var_1_14_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer)))) : 1) : ((*(var_1_14_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L99-L100] return (((((*(var_1_11_Pointer)) ^ (((((*(var_1_11_Pointer))) > ((*(var_1_14_Pointer)))) ? ((*(var_1_11_Pointer))) : ((*(var_1_14_Pointer)))))) != (*(var_1_11_Pointer))) ? (((*(var_1_11_Pointer)) == ((*(var_1_11_Pointer)) - ((*(var_1_7_Pointer)) - (*(var_1_11_Pointer))))) ? ((*(var_1_1_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))) : 1) : ((*(var_1_1_Pointer)) == ((float) 10.5f))) && ((last_1_var_1_14 > (*(var_1_8_Pointer))) ? ((((last_1_var_1_11 - (*(var_1_8_Pointer))) + (*(var_1_7_Pointer))) > last_1_var_1_14) ? ((*(var_1_11_Pointer)) == ((unsigned char) (((((*(var_1_12_Pointer))) < ((*(var_1_13_Pointer)))) ? ((*(var_1_12_Pointer))) : ((*(var_1_13_Pointer))))))) : ((*(var_1_11_Pointer)) == ((unsigned char) (*(var_1_12_Pointer))))) : 1)) && ((((*(var_1_11_Pointer)) & (*(var_1_7_Pointer))) > (((*(var_1_12_Pointer)) * last_1_var_1_14) * ((*(var_1_11_Pointer)) + (*(var_1_11_Pointer))))) ? (((*(var_1_15_Pointer)) && ((*(var_1_9_Pointer)) > (*(var_1_10_Pointer)))) ? ((*(var_1_14_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer)))) : 1) : ((*(var_1_14_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] [L19] reach_error() VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10={8:0}, var_1_10_Pointer={8:0}, var_1_11={9:0}, var_1_11_Pointer={9:0}, var_1_12={10:0}, var_1_12_Pointer={10:0}, var_1_13={11:0}, var_1_13_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_15={13:0}, var_1_15_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_7={5:0}, var_1_7_Pointer={5:0}, var_1_8={6:0}, var_1_8_Pointer={6:0}, var_1_9={7:0}, var_1_9_Pointer={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.8s, OverallIterations: 29, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 33.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10123 SdHoareTripleChecker+Valid, 17.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10111 mSDsluCounter, 30049 SdHoareTripleChecker+Invalid, 14.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24776 mSDsCounter, 808 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10199 IncrementalHoareTripleChecker+Invalid, 11007 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 808 mSolverCounterUnsat, 5273 mSDtfsCounter, 10199 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1319 GetRequests, 965 SyntacticMatches, 2 SemanticMatches, 352 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1652 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3366occurred in iteration=21, InterpolantAutomatonStates: 286, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.2s AutomataMinimizationTime, 28 MinimizatonAttempts, 7946 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 3455 NumberOfCodeBlocks, 3455 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 3303 ConstructedInterpolants, 0 QuantifiedInterpolants, 14561 SizeOfPredicates, 8 NumberOfNonLiveVariables, 488 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 30 InterpolantComputations, 27 PerfectInterpolantSequences, 7821/7920 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 14:34:29,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd --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 8167bb57c72da66729eaf4d0bfb99f298c96636d95817c5a55fbaebfee04d766 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:34:32,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:34:33,076 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 14:34:33,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:34:33,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:34:33,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:34:33,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:34:33,118 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:34:33,118 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:34:33,118 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:34:33,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:34:33,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:34:33,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:34:33,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:34:33,120 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:34:33,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:34:33,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:34:33,121 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:34:33,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:34:33,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:34:33,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:34:33,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:34:33,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:34:33,122 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:34:33,122 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 14:34:33,122 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:34:33,122 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 14:34:33,122 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:34:33,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:34:33,123 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:34:33,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:34:33,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:34:33,123 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:34:33,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:34:33,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:34:33,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:34:33,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:34:33,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:34:33,125 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 14:34:33,125 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 14:34:33,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:34:33,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:34:33,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:34:33,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:34:33,126 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_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd 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 -> 8167bb57c72da66729eaf4d0bfb99f298c96636d95817c5a55fbaebfee04d766 [2024-11-13 14:34:33,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:34:33,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:34:33,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:34:33,579 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:34:33,580 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:34:33,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-18.i Unable to find full path for "g++" [2024-11-13 14:34:36,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:34:36,436 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:34:36,437 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-18.i [2024-11-13 14:34:36,446 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/data/1ad9149b7/bfa336312aef4e71822a40a4b3679e71/FLAG02cb7277b [2024-11-13 14:34:36,464 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/data/1ad9149b7/bfa336312aef4e71822a40a4b3679e71 [2024-11-13 14:34:36,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:34:36,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:34:36,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:34:36,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:34:36,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:34:36,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:36,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1362aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36, skipping insertion in model container [2024-11-13 14:34:36,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:36,501 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:34:36,690 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_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-18.i[916,929] [2024-11-13 14:34:36,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:34:36,809 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:34:36,824 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_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-18.i[916,929] [2024-11-13 14:34:36,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:34:36,929 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:34:36,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36 WrapperNode [2024-11-13 14:34:36,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:34:36,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:34:36,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:34:36,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:34:36,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:36,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:37,024 INFO L138 Inliner]: procedures = 36, calls = 148, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 459 [2024-11-13 14:34:37,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:34:37,025 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:34:37,025 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:34:37,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:34:37,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:37,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:37,050 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:37,075 INFO L175 MemorySlicer]: Split 115 memory accesses to 11 slices as follows [2, 5, 14, 8, 12, 12, 26, 12, 8, 10, 6]. 23 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 13 writes are split as follows [0, 2, 1, 1, 1, 1, 2, 1, 1, 2, 1]. [2024-11-13 14:34:37,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:37,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:37,099 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:37,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:37,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:37,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:37,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:34:37,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:34:37,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:34:37,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:34:37,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (1/1) ... [2024-11-13 14:34:37,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:34:37,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:34:37,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:34:37,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:34:37,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:34:37,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 14:34:37,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 14:34:37,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-13 14:34:37,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-13 14:34:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-13 14:34:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-13 14:34:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-13 14:34:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-11-13 14:34:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2024-11-13 14:34:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2024-11-13 14:34:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2024-11-13 14:34:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-13 14:34:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-13 14:34:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-13 14:34:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-13 14:34:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-13 14:34:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-11-13 14:34:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2024-11-13 14:34:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7 [2024-11-13 14:34:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#8 [2024-11-13 14:34:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#9 [2024-11-13 14:34:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#10 [2024-11-13 14:34:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 14:34:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 14:34:37,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 14:34:37,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-13 14:34:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-13 14:34:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-13 14:34:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-13 14:34:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-13 14:34:37,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-13 14:34:37,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-13 14:34:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-13 14:34:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-13 14:34:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-13 14:34:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-13 14:34:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-13 14:34:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-13 14:34:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-13 14:34:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-13 14:34:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-13 14:34:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-13 14:34:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-13 14:34:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-13 14:34:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-13 14:34:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-13 14:34:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-13 14:34:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-13 14:34:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-13 14:34:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-13 14:34:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-13 14:34:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-13 14:34:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-13 14:34:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-13 14:34:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-13 14:34:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-13 14:34:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-13 14:34:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-13 14:34:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-13 14:34:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-13 14:34:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-13 14:34:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-11-13 14:34:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2024-11-13 14:34:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#8 [2024-11-13 14:34:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#9 [2024-11-13 14:34:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#10 [2024-11-13 14:34:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-13 14:34:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-13 14:34:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-13 14:34:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-13 14:34:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-13 14:34:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-13 14:34:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-13 14:34:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-13 14:34:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-13 14:34:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-13 14:34:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-13 14:34:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-13 14:34:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-13 14:34:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:34:37,230 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:34:37,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-13 14:34:37,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-13 14:34:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-13 14:34:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-13 14:34:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-13 14:34:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-13 14:34:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-13 14:34:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2024-11-13 14:34:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2024-11-13 14:34:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2024-11-13 14:34:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#8 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#9 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#10 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-13 14:34:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-13 14:34:37,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-13 14:34:37,553 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:34:37,556 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:34:38,729 INFO L? ?]: Removed 124 outVars from TransFormulas that were not future-live. [2024-11-13 14:34:38,729 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:34:38,742 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:34:38,743 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:34:38,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:34:38 BoogieIcfgContainer [2024-11-13 14:34:38,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:34:38,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:34:38,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:34:38,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:34:38,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:34:36" (1/3) ... [2024-11-13 14:34:38,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c82aff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:34:38, skipping insertion in model container [2024-11-13 14:34:38,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:34:36" (2/3) ... [2024-11-13 14:34:38,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c82aff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:34:38, skipping insertion in model container [2024-11-13 14:34:38,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:34:38" (3/3) ... [2024-11-13 14:34:38,755 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-18.i [2024-11-13 14:34:38,773 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:34:38,775 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-18.i that has 2 procedures, 92 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:34:38,854 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:34:38,872 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;@b2d8e7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:34:38,872 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:34:38,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 14:34:38,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:34:38,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:38,902 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:38,903 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:38,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:38,911 INFO L85 PathProgramCache]: Analyzing trace with hash -620686084, now seen corresponding path program 1 times [2024-11-13 14:34:38,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:34:38,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939863351] [2024-11-13 14:34:38,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:38,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:34:38,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:34:38,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:34:38,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 14:34:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:39,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 14:34:39,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:34:39,654 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-13 14:34:39,655 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:34:39,656 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:34:39,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939863351] [2024-11-13 14:34:39,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939863351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:39,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:34:39,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:34:39,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446882981] [2024-11-13 14:34:39,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:39,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:34:39,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:34:39,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:34:39,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:34:39,706 INFO L87 Difference]: Start difference. First operand has 92 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 14:34:39,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:39,764 INFO L93 Difference]: Finished difference Result 177 states and 274 transitions. [2024-11-13 14:34:39,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:34:39,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2024-11-13 14:34:39,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:39,774 INFO L225 Difference]: With dead ends: 177 [2024-11-13 14:34:39,774 INFO L226 Difference]: Without dead ends: 88 [2024-11-13 14:34:39,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:34:39,783 INFO L432 NwaCegarLoop]: 127 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, 127 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 [2024-11-13 14:34:39,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:34:39,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-13 14:34:39,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-13 14:34:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 14:34:39,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 127 transitions. [2024-11-13 14:34:39,871 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 127 transitions. Word has length 103 [2024-11-13 14:34:39,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:39,873 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 127 transitions. [2024-11-13 14:34:39,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 14:34:39,874 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions. [2024-11-13 14:34:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:34:39,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:39,877 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:39,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 14:34:40,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:34:40,078 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:40,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:40,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1426325928, now seen corresponding path program 1 times [2024-11-13 14:34:40,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:34:40,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791771991] [2024-11-13 14:34:40,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:40,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:34:40,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:34:40,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:34:40,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 14:34:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:40,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:34:40,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:34:41,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:34:41,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:34:41,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:34:41,554 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:34:41,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:34:41,843 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:34:41,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791771991] [2024-11-13 14:34:41,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791771991] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:34:41,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221562828] [2024-11-13 14:34:41,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:41,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:34:41,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:34:41,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:34:41,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:34:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:42,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:34:42,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:34:43,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-13 14:34:43,115 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:43,115 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:34:43,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221562828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:43,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:34:43,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-13 14:34:43,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762158873] [2024-11-13 14:34:43,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:43,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:34:43,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:34:43,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:34:43,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:34:43,120 INFO L87 Difference]: Start difference. First operand 88 states and 127 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:43,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:43,596 INFO L93 Difference]: Finished difference Result 260 states and 378 transitions. [2024-11-13 14:34:43,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:34:43,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-13 14:34:43,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:43,600 INFO L225 Difference]: With dead ends: 260 [2024-11-13 14:34:43,600 INFO L226 Difference]: Without dead ends: 175 [2024-11-13 14:34:43,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:34:43,603 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 68 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:43,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 412 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:34:43,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-13 14:34:43,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2024-11-13 14:34:43,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 143 states have (on average 1.3916083916083917) internal successors, (199), 143 states have internal predecessors, (199), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 14:34:43,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 247 transitions. [2024-11-13 14:34:43,651 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 247 transitions. Word has length 103 [2024-11-13 14:34:43,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:43,652 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 247 transitions. [2024-11-13 14:34:43,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:43,652 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 247 transitions. [2024-11-13 14:34:43,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:34:43,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:43,655 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:43,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 14:34:43,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:34:44,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:34:44,056 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:44,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:44,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2127390506, now seen corresponding path program 1 times [2024-11-13 14:34:44,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:34:44,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540296690] [2024-11-13 14:34:44,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:44,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:34:44,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:34:44,064 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:34:44,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 14:34:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:44,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:34:44,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:34:45,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:34:45,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:34:45,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:34:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:34:45,181 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:34:45,391 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:34:45,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540296690] [2024-11-13 14:34:45,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540296690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:34:45,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034907306] [2024-11-13 14:34:45,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:45,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:34:45,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:34:45,394 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:34:45,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:34:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:45,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 14:34:45,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:34:46,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-13 14:34:46,370 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:34:46,370 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:34:46,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034907306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:34:46,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:34:46,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-13 14:34:46,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562036120] [2024-11-13 14:34:46,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:34:46,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:34:46,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:34:46,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:34:46,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:34:46,376 INFO L87 Difference]: Start difference. First operand 170 states and 247 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:46,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:46,889 INFO L93 Difference]: Finished difference Result 344 states and 500 transitions. [2024-11-13 14:34:46,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:34:46,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2024-11-13 14:34:46,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:46,896 INFO L225 Difference]: With dead ends: 344 [2024-11-13 14:34:46,896 INFO L226 Difference]: Without dead ends: 177 [2024-11-13 14:34:46,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:34:46,899 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 72 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:46,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 501 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:34:46,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-13 14:34:46,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 172. [2024-11-13 14:34:46,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 145 states have (on average 1.3862068965517242) internal successors, (201), 145 states have internal predecessors, (201), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 14:34:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 249 transitions. [2024-11-13 14:34:46,939 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 249 transitions. Word has length 103 [2024-11-13 14:34:46,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:46,940 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 249 transitions. [2024-11-13 14:34:46,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:34:46,942 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 249 transitions. [2024-11-13 14:34:46,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:34:46,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:46,948 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:46,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-13 14:34:47,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 14:34:47,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:34:47,350 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:47,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:47,350 INFO L85 PathProgramCache]: Analyzing trace with hash 847526828, now seen corresponding path program 1 times [2024-11-13 14:34:47,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:34:47,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392451813] [2024-11-13 14:34:47,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:47,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:34:47,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:34:47,354 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:34:47,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-13 14:34:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:47,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:34:47,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:34:49,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:34:49,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:34:49,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-11-13 14:34:49,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2024-11-13 14:34:49,684 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:34:49,684 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:34:50,943 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:34:50,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-13 14:34:51,160 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 14:34:51,161 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:34:51,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392451813] [2024-11-13 14:34:51,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392451813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:34:51,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:34:51,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-13 14:34:51,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724829259] [2024-11-13 14:34:51,161 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:34:51,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 14:34:51,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:34:51,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 14:34:51,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:34:51,164 INFO L87 Difference]: Start difference. First operand 172 states and 249 transitions. Second operand has 21 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-13 14:34:58,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:34:58,993 INFO L93 Difference]: Finished difference Result 669 states and 959 transitions. [2024-11-13 14:34:58,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-13 14:34:58,995 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) Word has length 103 [2024-11-13 14:34:58,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:34:59,000 INFO L225 Difference]: With dead ends: 669 [2024-11-13 14:34:59,001 INFO L226 Difference]: Without dead ends: 500 [2024-11-13 14:34:59,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 971 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=963, Invalid=2343, Unknown=0, NotChecked=0, Total=3306 [2024-11-13 14:34:59,005 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1293 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:34:59,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 1503 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-13 14:34:59,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-13 14:34:59,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 436. [2024-11-13 14:34:59,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 366 states have (on average 1.3770491803278688) internal successors, (504), 366 states have internal predecessors, (504), 60 states have call successors, (60), 9 states have call predecessors, (60), 9 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 14:34:59,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 624 transitions. [2024-11-13 14:34:59,107 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 624 transitions. Word has length 103 [2024-11-13 14:34:59,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:34:59,110 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 624 transitions. [2024-11-13 14:34:59,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 4.526315789473684) internal successors, (86), 20 states have internal predecessors, (86), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-13 14:34:59,111 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 624 transitions. [2024-11-13 14:34:59,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:34:59,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:34:59,117 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:34:59,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-13 14:34:59,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:34:59,318 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:34:59,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:34:59,319 INFO L85 PathProgramCache]: Analyzing trace with hash 2110133846, now seen corresponding path program 1 times [2024-11-13 14:34:59,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:34:59,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117263039] [2024-11-13 14:34:59,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:59,321 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:34:59,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:34:59,324 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:34:59,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-13 14:34:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:59,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 14:34:59,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:00,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-11-13 14:35:00,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-13 14:35:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:35:00,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:35:00,133 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:00,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117263039] [2024-11-13 14:35:00,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117263039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:00,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:00,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:35:00,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727916771] [2024-11-13 14:35:00,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:00,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:35:00,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:00,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:35:00,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:35:00,136 INFO L87 Difference]: Start difference. First operand 436 states and 624 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:01,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:01,750 INFO L93 Difference]: Finished difference Result 1058 states and 1516 transitions. [2024-11-13 14:35:01,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:35:01,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-13 14:35:01,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:01,759 INFO L225 Difference]: With dead ends: 1058 [2024-11-13 14:35:01,761 INFO L226 Difference]: Without dead ends: 625 [2024-11-13 14:35:01,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:35:01,764 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 122 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:01,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 789 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:35:01,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-13 14:35:01,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 520. [2024-11-13 14:35:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 437 states have (on average 1.3752860411899313) internal successors, (601), 437 states have internal predecessors, (601), 72 states have call successors, (72), 10 states have call predecessors, (72), 10 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-13 14:35:01,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 745 transitions. [2024-11-13 14:35:01,882 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 745 transitions. Word has length 104 [2024-11-13 14:35:01,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:01,883 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 745 transitions. [2024-11-13 14:35:01,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:01,884 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 745 transitions. [2024-11-13 14:35:01,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:35:01,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:01,886 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:01,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-13 14:35:02,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:02,087 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:02,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:02,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1691496628, now seen corresponding path program 1 times [2024-11-13 14:35:02,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:02,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207263449] [2024-11-13 14:35:02,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:02,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:02,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:02,094 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:02,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-13 14:35:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:02,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:35:02,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:02,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:35:02,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:35:03,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:35:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:35:03,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:35:03,302 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:03,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207263449] [2024-11-13 14:35:03,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207263449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:35:03,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677735523] [2024-11-13 14:35:03,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:03,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:35:03,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:35:03,305 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:35:03,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 14:35:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:03,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:35:03,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:03,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:35:03,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:35:04,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:35:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:35:04,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:35:04,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677735523] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:35:04,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:35:04,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2024-11-13 14:35:04,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82069392] [2024-11-13 14:35:04,083 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:35:04,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:35:04,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:04,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:35:04,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:35:04,085 INFO L87 Difference]: Start difference. First operand 520 states and 745 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 14:35:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:06,542 INFO L93 Difference]: Finished difference Result 981 states and 1394 transitions. [2024-11-13 14:35:06,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 14:35:06,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2024-11-13 14:35:06,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:06,549 INFO L225 Difference]: With dead ends: 981 [2024-11-13 14:35:06,549 INFO L226 Difference]: Without dead ends: 635 [2024-11-13 14:35:06,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2024-11-13 14:35:06,552 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 373 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:06,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 779 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:35:06,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-13 14:35:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 617. [2024-11-13 14:35:06,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 518 states have (on average 1.361003861003861) internal successors, (705), 518 states have internal predecessors, (705), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 14:35:06,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 873 transitions. [2024-11-13 14:35:06,659 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 873 transitions. Word has length 104 [2024-11-13 14:35:06,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:06,660 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 873 transitions. [2024-11-13 14:35:06,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 14:35:06,660 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 873 transitions. [2024-11-13 14:35:06,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 14:35:06,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:06,663 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:06,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 14:35:06,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-13 14:35:07,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:07,065 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:07,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:07,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1039426376, now seen corresponding path program 1 times [2024-11-13 14:35:07,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:07,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521893762] [2024-11-13 14:35:07,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:07,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:07,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:07,068 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:07,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-13 14:35:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:07,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:35:07,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:07,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:35:07,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:35:07,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:35:08,077 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:35:08,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:35:08,285 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:08,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521893762] [2024-11-13 14:35:08,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521893762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:35:08,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058153653] [2024-11-13 14:35:08,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:08,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:35:08,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:35:08,289 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:35:08,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 14:35:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:08,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 14:35:08,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:08,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:35:08,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:35:09,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:35:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:35:09,020 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:35:09,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058153653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:35:09,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:35:09,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2024-11-13 14:35:09,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859871468] [2024-11-13 14:35:09,102 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:35:09,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:35:09,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:09,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:35:09,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:35:09,104 INFO L87 Difference]: Start difference. First operand 617 states and 873 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 14:35:11,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:11,501 INFO L93 Difference]: Finished difference Result 977 states and 1373 transitions. [2024-11-13 14:35:11,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 14:35:11,502 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2024-11-13 14:35:11,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:11,507 INFO L225 Difference]: With dead ends: 977 [2024-11-13 14:35:11,507 INFO L226 Difference]: Without dead ends: 629 [2024-11-13 14:35:11,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 245 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2024-11-13 14:35:11,511 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 363 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:11,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 785 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:35:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-13 14:35:11,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 613. [2024-11-13 14:35:11,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 514 states have (on average 1.3521400778210118) internal successors, (695), 514 states have internal predecessors, (695), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 14:35:11,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 863 transitions. [2024-11-13 14:35:11,618 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 863 transitions. Word has length 105 [2024-11-13 14:35:11,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:11,618 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 863 transitions. [2024-11-13 14:35:11,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 14:35:11,619 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 863 transitions. [2024-11-13 14:35:11,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 14:35:11,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:11,621 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:11,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-13 14:35:11,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 14:35:12,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:35:12,022 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:12,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:12,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1655018872, now seen corresponding path program 1 times [2024-11-13 14:35:12,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:12,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275902760] [2024-11-13 14:35:12,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:12,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:12,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:12,028 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:12,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-13 14:35:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:12,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:35:12,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:35:12,542 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:35:12,542 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:12,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275902760] [2024-11-13 14:35:12,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275902760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:12,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:12,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:35:12,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339047535] [2024-11-13 14:35:12,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:12,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:35:12,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:12,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:35:12,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:35:12,544 INFO L87 Difference]: Start difference. First operand 613 states and 863 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:12,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:12,683 INFO L93 Difference]: Finished difference Result 1244 states and 1751 transitions. [2024-11-13 14:35:12,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:35:12,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2024-11-13 14:35:12,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:12,692 INFO L225 Difference]: With dead ends: 1244 [2024-11-13 14:35:12,692 INFO L226 Difference]: Without dead ends: 634 [2024-11-13 14:35:12,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:35:12,695 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:12,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 481 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:35:12,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-13 14:35:12,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2024-11-13 14:35:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 535 states have (on average 1.3383177570093459) internal successors, (716), 535 states have internal predecessors, (716), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 14:35:12,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 884 transitions. [2024-11-13 14:35:12,784 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 884 transitions. Word has length 106 [2024-11-13 14:35:12,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:12,784 INFO L471 AbstractCegarLoop]: Abstraction has 634 states and 884 transitions. [2024-11-13 14:35:12,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 884 transitions. [2024-11-13 14:35:12,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 14:35:12,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:12,787 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:12,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-13 14:35:12,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:12,988 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:12,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:12,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1876663826, now seen corresponding path program 1 times [2024-11-13 14:35:12,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:12,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616307664] [2024-11-13 14:35:12,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:12,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:12,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:12,991 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:12,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-13 14:35:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:13,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:35:13,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:13,704 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:35:13,704 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:35:13,704 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:13,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616307664] [2024-11-13 14:35:13,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616307664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:13,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:13,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:35:13,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126291736] [2024-11-13 14:35:13,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:13,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:35:13,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:13,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:35:13,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:35:13,706 INFO L87 Difference]: Start difference. First operand 634 states and 884 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:13,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:13,998 INFO L93 Difference]: Finished difference Result 1263 states and 1760 transitions. [2024-11-13 14:35:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:35:13,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2024-11-13 14:35:13,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:14,004 INFO L225 Difference]: With dead ends: 1263 [2024-11-13 14:35:14,004 INFO L226 Difference]: Without dead ends: 632 [2024-11-13 14:35:14,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:35:14,006 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 66 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:14,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 401 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:35:14,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-13 14:35:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 630. [2024-11-13 14:35:14,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 531 states have (on average 1.3314500941619585) internal successors, (707), 531 states have internal predecessors, (707), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 14:35:14,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 875 transitions. [2024-11-13 14:35:14,086 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 875 transitions. Word has length 106 [2024-11-13 14:35:14,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:14,087 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 875 transitions. [2024-11-13 14:35:14,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:14,087 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 875 transitions. [2024-11-13 14:35:14,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 14:35:14,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:14,089 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:14,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-13 14:35:14,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:14,290 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:14,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:14,290 INFO L85 PathProgramCache]: Analyzing trace with hash 2095601998, now seen corresponding path program 1 times [2024-11-13 14:35:14,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:14,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197476125] [2024-11-13 14:35:14,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:14,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:14,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:14,293 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:14,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-13 14:35:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:14,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:35:14,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:15,019 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:35:15,019 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:35:15,020 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:15,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197476125] [2024-11-13 14:35:15,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197476125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:15,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:15,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:35:15,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177766908] [2024-11-13 14:35:15,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:15,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:35:15,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:15,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:35:15,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:35:15,022 INFO L87 Difference]: Start difference. First operand 630 states and 875 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:15,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:15,394 INFO L93 Difference]: Finished difference Result 1255 states and 1742 transitions. [2024-11-13 14:35:15,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:35:15,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-11-13 14:35:15,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:15,399 INFO L225 Difference]: With dead ends: 1255 [2024-11-13 14:35:15,399 INFO L226 Difference]: Without dead ends: 628 [2024-11-13 14:35:15,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:35:15,401 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 59 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:15,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 435 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:35:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-13 14:35:15,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 359. [2024-11-13 14:35:15,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 302 states have (on average 1.3245033112582782) internal successors, (400), 302 states have internal predecessors, (400), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-13 14:35:15,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 496 transitions. [2024-11-13 14:35:15,450 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 496 transitions. Word has length 107 [2024-11-13 14:35:15,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:15,451 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 496 transitions. [2024-11-13 14:35:15,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:15,451 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 496 transitions. [2024-11-13 14:35:15,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 14:35:15,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:15,452 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:15,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-13 14:35:15,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:15,653 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:15,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:15,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1030047053, now seen corresponding path program 1 times [2024-11-13 14:35:15,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:15,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76139721] [2024-11-13 14:35:15,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:15,655 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:15,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:15,657 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:15,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-13 14:35:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:16,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:35:16,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:16,104 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:35:16,104 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:35:16,104 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:16,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76139721] [2024-11-13 14:35:16,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76139721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:16,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:16,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:35:16,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223645393] [2024-11-13 14:35:16,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:16,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:35:16,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:16,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:35:16,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:35:16,106 INFO L87 Difference]: Start difference. First operand 359 states and 496 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:16,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:16,201 INFO L93 Difference]: Finished difference Result 727 states and 1005 transitions. [2024-11-13 14:35:16,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:35:16,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-13 14:35:16,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:16,206 INFO L225 Difference]: With dead ends: 727 [2024-11-13 14:35:16,206 INFO L226 Difference]: Without dead ends: 371 [2024-11-13 14:35:16,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:35:16,208 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:16,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 472 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:35:16,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-13 14:35:16,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2024-11-13 14:35:16,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 314 states have (on average 1.3121019108280254) internal successors, (412), 314 states have internal predecessors, (412), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-13 14:35:16,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 508 transitions. [2024-11-13 14:35:16,257 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 508 transitions. Word has length 108 [2024-11-13 14:35:16,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:16,258 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 508 transitions. [2024-11-13 14:35:16,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:16,258 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 508 transitions. [2024-11-13 14:35:16,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 14:35:16,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:16,259 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:16,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-13 14:35:16,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:16,460 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:16,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:16,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1568776787, now seen corresponding path program 1 times [2024-11-13 14:35:16,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:16,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523461513] [2024-11-13 14:35:16,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:16,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:16,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:16,463 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:16,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-13 14:35:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:16,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:35:16,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:17,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2024-11-13 14:35:17,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-13 14:35:17,135 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:35:17,135 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:35:17,136 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:17,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523461513] [2024-11-13 14:35:17,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523461513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:17,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:17,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:35:17,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75311360] [2024-11-13 14:35:17,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:17,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:35:17,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:17,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:35:17,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:35:17,137 INFO L87 Difference]: Start difference. First operand 371 states and 508 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:18,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:18,121 INFO L93 Difference]: Finished difference Result 831 states and 1131 transitions. [2024-11-13 14:35:18,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:35:18,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-11-13 14:35:18,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:18,125 INFO L225 Difference]: With dead ends: 831 [2024-11-13 14:35:18,125 INFO L226 Difference]: Without dead ends: 463 [2024-11-13 14:35:18,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:35:18,127 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 191 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:18,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 452 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:35:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-13 14:35:18,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 386. [2024-11-13 14:35:18,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 329 states have (on average 1.297872340425532) internal successors, (427), 329 states have internal predecessors, (427), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-13 14:35:18,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 523 transitions. [2024-11-13 14:35:18,179 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 523 transitions. Word has length 108 [2024-11-13 14:35:18,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:18,180 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 523 transitions. [2024-11-13 14:35:18,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:18,180 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 523 transitions. [2024-11-13 14:35:18,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 14:35:18,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:18,182 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:18,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-11-13 14:35:18,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:18,383 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:18,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:18,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1564057473, now seen corresponding path program 1 times [2024-11-13 14:35:18,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:18,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316531676] [2024-11-13 14:35:18,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:18,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:18,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:18,388 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:18,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-13 14:35:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:18,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:35:18,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:20,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2024-11-13 14:35:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-13 14:35:21,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:35:21,397 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:35:21,397 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:21,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316531676] [2024-11-13 14:35:21,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316531676] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:35:21,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:35:21,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2024-11-13 14:35:21,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385826236] [2024-11-13 14:35:21,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:21,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:35:21,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:21,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:35:21,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:35:21,399 INFO L87 Difference]: Start difference. First operand 386 states and 523 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:22,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:22,014 INFO L93 Difference]: Finished difference Result 894 states and 1207 transitions. [2024-11-13 14:35:22,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:35:22,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-13 14:35:22,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:22,019 INFO L225 Difference]: With dead ends: 894 [2024-11-13 14:35:22,020 INFO L226 Difference]: Without dead ends: 511 [2024-11-13 14:35:22,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:35:22,022 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 72 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:22,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 338 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:35:22,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-13 14:35:22,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 463. [2024-11-13 14:35:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 406 states have (on average 1.293103448275862) internal successors, (525), 406 states have internal predecessors, (525), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-13 14:35:22,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 621 transitions. [2024-11-13 14:35:22,080 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 621 transitions. Word has length 110 [2024-11-13 14:35:22,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:22,081 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 621 transitions. [2024-11-13 14:35:22,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:22,081 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 621 transitions. [2024-11-13 14:35:22,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 14:35:22,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:22,083 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:22,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-13 14:35:22,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:22,287 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:22,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:22,288 INFO L85 PathProgramCache]: Analyzing trace with hash -260446401, now seen corresponding path program 1 times [2024-11-13 14:35:22,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:22,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885563297] [2024-11-13 14:35:22,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:22,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:22,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:22,292 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:22,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-13 14:35:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:22,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:35:22,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:22,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 14:35:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:35:22,918 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:35:22,918 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:22,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885563297] [2024-11-13 14:35:22,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885563297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:22,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:22,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:35:22,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943431077] [2024-11-13 14:35:22,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:22,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:35:22,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:22,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:35:22,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:35:22,919 INFO L87 Difference]: Start difference. First operand 463 states and 621 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:23,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:23,757 INFO L93 Difference]: Finished difference Result 720 states and 944 transitions. [2024-11-13 14:35:23,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:35:23,758 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-11-13 14:35:23,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:23,761 INFO L225 Difference]: With dead ends: 720 [2024-11-13 14:35:23,762 INFO L226 Difference]: Without dead ends: 718 [2024-11-13 14:35:23,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:35:23,763 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 212 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:23,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 603 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:35:23,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-13 14:35:23,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 676. [2024-11-13 14:35:23,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 619 states have (on average 1.2762520193861067) internal successors, (790), 619 states have internal predecessors, (790), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-13 14:35:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 886 transitions. [2024-11-13 14:35:23,824 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 886 transitions. Word has length 110 [2024-11-13 14:35:23,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:23,824 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 886 transitions. [2024-11-13 14:35:23,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:23,825 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 886 transitions. [2024-11-13 14:35:23,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 14:35:23,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:23,827 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:23,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-13 14:35:24,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:24,027 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:24,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:24,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1127585350, now seen corresponding path program 1 times [2024-11-13 14:35:24,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:24,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765431938] [2024-11-13 14:35:24,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:24,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:24,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:24,039 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:24,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-13 14:35:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:24,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:35:24,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:25,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-13 14:35:25,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:35:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:35:25,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:35:26,386 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-13 14:35:26,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2024-11-13 14:35:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 14:35:26,507 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:26,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765431938] [2024-11-13 14:35:26,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765431938] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:35:26,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:35:26,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-13 14:35:26,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095638887] [2024-11-13 14:35:26,508 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:35:26,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 14:35:26,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:26,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 14:35:26,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:35:26,510 INFO L87 Difference]: Start difference. First operand 676 states and 886 transitions. Second operand has 17 states, 15 states have (on average 6.266666666666667) internal successors, (94), 16 states have internal predecessors, (94), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-13 14:35:31,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:31,746 INFO L93 Difference]: Finished difference Result 1303 states and 1699 transitions. [2024-11-13 14:35:31,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 14:35:31,747 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.266666666666667) internal successors, (94), 16 states have internal predecessors, (94), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) Word has length 110 [2024-11-13 14:35:31,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:31,750 INFO L225 Difference]: With dead ends: 1303 [2024-11-13 14:35:31,751 INFO L226 Difference]: Without dead ends: 630 [2024-11-13 14:35:31,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=270, Invalid=786, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 14:35:31,753 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 606 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:31,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 942 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 14:35:31,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-13 14:35:31,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 576. [2024-11-13 14:35:31,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 519 states have (on average 1.2485549132947977) internal successors, (648), 519 states have internal predecessors, (648), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-13 14:35:31,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 744 transitions. [2024-11-13 14:35:31,807 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 744 transitions. Word has length 110 [2024-11-13 14:35:31,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:31,807 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 744 transitions. [2024-11-13 14:35:31,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.266666666666667) internal successors, (94), 16 states have internal predecessors, (94), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-13 14:35:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 744 transitions. [2024-11-13 14:35:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:35:31,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:31,809 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:31,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-13 14:35:32,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:32,010 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:32,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:32,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1082742027, now seen corresponding path program 1 times [2024-11-13 14:35:32,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:32,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771330806] [2024-11-13 14:35:32,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:32,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:32,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:32,013 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:32,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-13 14:35:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:32,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 14:35:32,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:32,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:35:35,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2024-11-13 14:35:35,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:35:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 16 proven. 135 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-13 14:35:35,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:35:37,176 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:35:37,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2024-11-13 14:35:38,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:38,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771330806] [2024-11-13 14:35:38,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771330806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:35:38,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920209113] [2024-11-13 14:35:38,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:38,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:35:38,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:35:38,035 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:35:38,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-13 14:35:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:38,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:35:38,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:38,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 14:35:38,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2024-11-13 14:35:39,364 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 14:35:39,365 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:35:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:35:39,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920209113] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:35:39,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:35:39,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19, 9] total 30 [2024-11-13 14:35:39,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979829668] [2024-11-13 14:35:39,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:39,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:35:39,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:39,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:35:39,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1402, Unknown=0, NotChecked=0, Total=1640 [2024-11-13 14:35:39,883 INFO L87 Difference]: Start difference. First operand 576 states and 744 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:40,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:40,612 INFO L93 Difference]: Finished difference Result 1350 states and 1751 transitions. [2024-11-13 14:35:40,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:35:40,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-11-13 14:35:40,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:40,615 INFO L225 Difference]: With dead ends: 1350 [2024-11-13 14:35:40,616 INFO L226 Difference]: Without dead ends: 924 [2024-11-13 14:35:40,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=254, Invalid=1726, Unknown=0, NotChecked=0, Total=1980 [2024-11-13 14:35:40,618 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 83 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:40,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 988 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:35:40,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-11-13 14:35:40,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 901. [2024-11-13 14:35:40,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 820 states have (on average 1.2621951219512195) internal successors, (1035), 823 states have internal predecessors, (1035), 66 states have call successors, (66), 14 states have call predecessors, (66), 14 states have return successors, (66), 63 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-13 14:35:40,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1167 transitions. [2024-11-13 14:35:40,735 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1167 transitions. Word has length 111 [2024-11-13 14:35:40,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:40,736 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1167 transitions. [2024-11-13 14:35:40,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:40,736 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1167 transitions. [2024-11-13 14:35:40,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 14:35:40,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:40,739 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:40,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-13 14:35:40,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-13 14:35:41,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:35:41,140 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:41,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:41,141 INFO L85 PathProgramCache]: Analyzing trace with hash 43503045, now seen corresponding path program 1 times [2024-11-13 14:35:41,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:41,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477098516] [2024-11-13 14:35:41,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:41,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:41,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:41,151 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:41,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-13 14:35:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:41,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:35:41,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:43,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2024-11-13 14:35:43,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2024-11-13 14:35:43,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2024-11-13 14:35:43,476 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:35:43,476 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:35:43,476 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:43,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477098516] [2024-11-13 14:35:43,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477098516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:43,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:35:43,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:35:43,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639564398] [2024-11-13 14:35:43,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:43,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:35:43,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:43,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:35:43,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:35:43,478 INFO L87 Difference]: Start difference. First operand 901 states and 1167 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:45,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:45,581 INFO L93 Difference]: Finished difference Result 1944 states and 2507 transitions. [2024-11-13 14:35:45,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:35:45,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-11-13 14:35:45,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:45,590 INFO L225 Difference]: With dead ends: 1944 [2024-11-13 14:35:45,590 INFO L226 Difference]: Without dead ends: 1046 [2024-11-13 14:35:45,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:35:45,593 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 140 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:45,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 614 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 14:35:45,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2024-11-13 14:35:45,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 995. [2024-11-13 14:35:45,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 900 states have (on average 1.2533333333333334) internal successors, (1128), 903 states have internal predecessors, (1128), 78 states have call successors, (78), 16 states have call predecessors, (78), 16 states have return successors, (78), 75 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:35:45,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1284 transitions. [2024-11-13 14:35:45,734 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1284 transitions. Word has length 112 [2024-11-13 14:35:45,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:45,735 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1284 transitions. [2024-11-13 14:35:45,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:35:45,736 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1284 transitions. [2024-11-13 14:35:45,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:35:45,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:45,738 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:45,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2024-11-13 14:35:45,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:45,939 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:45,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:45,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1890007251, now seen corresponding path program 1 times [2024-11-13 14:35:45,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:35:45,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793976664] [2024-11-13 14:35:45,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:45,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:35:45,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:35:45,945 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:35:45,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-13 14:35:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:46,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 14:35:46,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:48,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 45 [2024-11-13 14:35:48,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2024-11-13 14:35:48,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2024-11-13 14:35:48,488 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-13 14:35:48,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:35:53,155 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:35:53,155 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:35:53,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793976664] [2024-11-13 14:35:53,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793976664] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:35:53,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:35:53,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-11-13 14:35:53,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163186055] [2024-11-13 14:35:53,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:53,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:35:53,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:35:53,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:35:53,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:35:53,157 INFO L87 Difference]: Start difference. First operand 995 states and 1284 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:36:02,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:36:02,149 INFO L93 Difference]: Finished difference Result 2193 states and 2809 transitions. [2024-11-13 14:36:02,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:36:02,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:36:02,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:36:02,163 INFO L225 Difference]: With dead ends: 2193 [2024-11-13 14:36:02,163 INFO L226 Difference]: Without dead ends: 1295 [2024-11-13 14:36:02,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:36:02,166 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 30 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:36:02,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 393 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-11-13 14:36:02,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2024-11-13 14:36:02,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1232. [2024-11-13 14:36:02,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1137 states have (on average 1.2436235708003518) internal successors, (1414), 1140 states have internal predecessors, (1414), 78 states have call successors, (78), 16 states have call predecessors, (78), 16 states have return successors, (78), 75 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:36:02,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1570 transitions. [2024-11-13 14:36:02,292 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1570 transitions. Word has length 113 [2024-11-13 14:36:02,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:36:02,292 INFO L471 AbstractCegarLoop]: Abstraction has 1232 states and 1570 transitions. [2024-11-13 14:36:02,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:36:02,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1570 transitions. [2024-11-13 14:36:02,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:36:02,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:36:02,295 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:36:02,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-13 14:36:02,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:36:02,496 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:36:02,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:36:02,496 INFO L85 PathProgramCache]: Analyzing trace with hash -795678352, now seen corresponding path program 1 times [2024-11-13 14:36:02,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:36:02,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031785489] [2024-11-13 14:36:02,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:36:02,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:36:02,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:36:02,500 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:36:02,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-13 14:36:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:36:03,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 14:36:03,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:36:03,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:36:07,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2024-11-13 14:36:07,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:36:07,303 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 16 proven. 135 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-13 14:36:07,304 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:36:09,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:36:09,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2024-11-13 14:36:10,382 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:36:10,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031785489] [2024-11-13 14:36:10,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031785489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:36:10,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913608636] [2024-11-13 14:36:10,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:36:10,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:36:10,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:36:10,386 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:36:10,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-13 14:36:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:36:10,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:36:10,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:36:10,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 14:36:11,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 14:36:11,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:36:12,001 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 14:36:12,001 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:36:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:36:13,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913608636] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:36:13,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:36:13,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19, 11] total 33 [2024-11-13 14:36:13,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503074983] [2024-11-13 14:36:13,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:36:13,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:36:13,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:36:13,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:36:13,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1647, Unknown=0, NotChecked=0, Total=1892 [2024-11-13 14:36:13,053 INFO L87 Difference]: Start difference. First operand 1232 states and 1570 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:36:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:36:14,504 INFO L93 Difference]: Finished difference Result 2141 states and 2741 transitions. [2024-11-13 14:36:14,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:36:14,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:36:14,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:36:14,510 INFO L225 Difference]: With dead ends: 2141 [2024-11-13 14:36:14,510 INFO L226 Difference]: Without dead ends: 1282 [2024-11-13 14:36:14,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 391 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=271, Invalid=2179, Unknown=0, NotChecked=0, Total=2450 [2024-11-13 14:36:14,511 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 86 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:36:14,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1304 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:36:14,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2024-11-13 14:36:14,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1241. [2024-11-13 14:36:14,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1146 states have (on average 1.2417102966841187) internal successors, (1423), 1149 states have internal predecessors, (1423), 78 states have call successors, (78), 16 states have call predecessors, (78), 16 states have return successors, (78), 75 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:36:14,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1579 transitions. [2024-11-13 14:36:14,628 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1579 transitions. Word has length 113 [2024-11-13 14:36:14,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:36:14,629 INFO L471 AbstractCegarLoop]: Abstraction has 1241 states and 1579 transitions. [2024-11-13 14:36:14,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:36:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1579 transitions. [2024-11-13 14:36:14,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:36:14,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:36:14,631 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:36:14,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-13 14:36:14,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-13 14:36:15,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:36:15,036 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:36:15,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:36:15,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1188705362, now seen corresponding path program 1 times [2024-11-13 14:36:15,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:36:15,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818209099] [2024-11-13 14:36:15,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:36:15,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:36:15,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:36:15,039 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:36:15,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-13 14:36:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:36:15,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 14:36:15,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:36:15,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:36:19,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2024-11-13 14:36:19,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:36:19,289 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 16 proven. 135 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-13 14:36:19,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:36:21,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:36:21,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2024-11-13 14:36:22,246 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:36:22,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818209099] [2024-11-13 14:36:22,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818209099] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:36:22,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042583664] [2024-11-13 14:36:22,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:36:22,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:36:22,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:36:22,248 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:36:22,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-13 14:36:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:36:22,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:36:22,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:36:22,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:36:25,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:36:25,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:36:25,214 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:36:25,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:36:25,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2024-11-13 14:36:25,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042583664] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:36:25,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:36:25,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 10] total 27 [2024-11-13 14:36:25,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516069857] [2024-11-13 14:36:25,467 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:36:25,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 14:36:25,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:36:25,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 14:36:25,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=1248, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 14:36:25,470 INFO L87 Difference]: Start difference. First operand 1241 states and 1579 transitions. Second operand has 28 states, 24 states have (on average 4.125) internal successors, (99), 23 states have internal predecessors, (99), 7 states have call successors, (24), 6 states have call predecessors, (24), 7 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-13 14:36:31,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:36:31,742 INFO L93 Difference]: Finished difference Result 2341 states and 2973 transitions. [2024-11-13 14:36:31,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 14:36:31,747 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 4.125) internal successors, (99), 23 states have internal predecessors, (99), 7 states have call successors, (24), 6 states have call predecessors, (24), 7 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) Word has length 113 [2024-11-13 14:36:31,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:36:31,753 INFO L225 Difference]: With dead ends: 2341 [2024-11-13 14:36:31,753 INFO L226 Difference]: Without dead ends: 1383 [2024-11-13 14:36:31,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 315 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 956 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=905, Invalid=3001, Unknown=0, NotChecked=0, Total=3906 [2024-11-13 14:36:31,756 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 660 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:36:31,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 1142 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 14:36:31,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2024-11-13 14:36:31,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1250. [2024-11-13 14:36:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1153 states have (on average 1.2402428447528187) internal successors, (1430), 1156 states have internal predecessors, (1430), 78 states have call successors, (78), 18 states have call predecessors, (78), 18 states have return successors, (78), 75 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:36:31,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1586 transitions. [2024-11-13 14:36:31,909 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1586 transitions. Word has length 113 [2024-11-13 14:36:31,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:36:31,910 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1586 transitions. [2024-11-13 14:36:31,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 4.125) internal successors, (99), 23 states have internal predecessors, (99), 7 states have call successors, (24), 6 states have call predecessors, (24), 7 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-13 14:36:31,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1586 transitions. [2024-11-13 14:36:31,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:36:31,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:36:31,912 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:36:31,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-13 14:36:32,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-13 14:36:32,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:36:32,314 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:36:32,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:36:32,314 INFO L85 PathProgramCache]: Analyzing trace with hash 286271802, now seen corresponding path program 1 times [2024-11-13 14:36:32,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:36:32,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446601246] [2024-11-13 14:36:32,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:36:32,315 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:36:32,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:36:32,318 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:36:32,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-13 14:36:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:36:32,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 14:36:32,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:36:32,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:36:37,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:36:37,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:36:37,437 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 16 proven. 135 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-13 14:36:37,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:36:40,122 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:36:40,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2024-11-13 14:36:40,837 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:36:40,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446601246] [2024-11-13 14:36:40,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446601246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:36:40,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65439238] [2024-11-13 14:36:40,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:36:40,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:36:40,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:36:40,841 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:36:40,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-13 14:36:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:36:41,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:36:41,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:36:43,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-13 14:36:43,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 44 [2024-11-13 14:36:43,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 38 [2024-11-13 14:36:44,203 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 7 proven. 167 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-13 14:36:44,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:36:45,405 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:36:45,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65439238] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:36:45,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:36:45,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [20, 15] total 38 [2024-11-13 14:36:45,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387266062] [2024-11-13 14:36:45,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:36:45,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:36:45,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:36:45,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:36:45,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=2159, Unknown=0, NotChecked=0, Total=2450 [2024-11-13 14:36:45,408 INFO L87 Difference]: Start difference. First operand 1250 states and 1586 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:36:46,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:36:46,524 INFO L93 Difference]: Finished difference Result 2566 states and 3273 transitions. [2024-11-13 14:36:46,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:36:46,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-11-13 14:36:46,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:36:46,531 INFO L225 Difference]: With dead ends: 2566 [2024-11-13 14:36:46,532 INFO L226 Difference]: Without dead ends: 1736 [2024-11-13 14:36:46,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 975 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=307, Invalid=2555, Unknown=0, NotChecked=0, Total=2862 [2024-11-13 14:36:46,535 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 83 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:36:46,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1148 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:36:46,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-13 14:36:46,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1449. [2024-11-13 14:36:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1352 states have (on average 1.253698224852071) internal successors, (1695), 1355 states have internal predecessors, (1695), 78 states have call successors, (78), 18 states have call predecessors, (78), 18 states have return successors, (78), 75 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:36:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1851 transitions. [2024-11-13 14:36:46,674 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1851 transitions. Word has length 113 [2024-11-13 14:36:46,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:36:46,675 INFO L471 AbstractCegarLoop]: Abstraction has 1449 states and 1851 transitions. [2024-11-13 14:36:46,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:36:46,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1851 transitions. [2024-11-13 14:36:46,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:36:46,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:36:46,678 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:36:46,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-13 14:36:46,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-13 14:36:47,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:36:47,079 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:36:47,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:36:47,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2085467460, now seen corresponding path program 1 times [2024-11-13 14:36:47,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:36:47,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957219018] [2024-11-13 14:36:47,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:36:47,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:36:47,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:36:47,082 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:36:47,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-13 14:36:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:36:47,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 14:36:47,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:36:47,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:36:52,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:36:52,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:36:52,462 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 16 proven. 135 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-13 14:36:52,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:36:55,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:36:55,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2024-11-13 14:36:56,007 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:36:56,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957219018] [2024-11-13 14:36:56,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957219018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:36:56,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302334477] [2024-11-13 14:36:56,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:36:56,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:36:56,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:36:56,009 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:36:56,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-13 14:36:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:36:56,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:36:56,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:36:56,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:36:59,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:36:59,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:36:59,714 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:36:59,714 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:37:00,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2024-11-13 14:37:00,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302334477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:00,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:37:00,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11] total 28 [2024-11-13 14:37:00,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542339623] [2024-11-13 14:37:00,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:37:00,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-13 14:37:00,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:37:00,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-13 14:37:00,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=1380, Unknown=0, NotChecked=0, Total=1722 [2024-11-13 14:37:00,433 INFO L87 Difference]: Start difference. First operand 1449 states and 1851 transitions. Second operand has 29 states, 25 states have (on average 3.96) internal successors, (99), 24 states have internal predecessors, (99), 7 states have call successors, (24), 6 states have call predecessors, (24), 7 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-13 14:37:10,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:10,331 INFO L93 Difference]: Finished difference Result 2725 states and 3483 transitions. [2024-11-13 14:37:10,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-13 14:37:10,337 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 3.96) internal successors, (99), 24 states have internal predecessors, (99), 7 states have call successors, (24), 6 states have call predecessors, (24), 7 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) Word has length 113 [2024-11-13 14:37:10,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:10,342 INFO L225 Difference]: With dead ends: 2725 [2024-11-13 14:37:10,342 INFO L226 Difference]: Without dead ends: 1679 [2024-11-13 14:37:10,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 313 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1075 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=990, Invalid=3432, Unknown=0, NotChecked=0, Total=4422 [2024-11-13 14:37:10,347 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 525 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:10,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 2518 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-13 14:37:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2024-11-13 14:37:10,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1550. [2024-11-13 14:37:10,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1453 states have (on average 1.2450103234686856) internal successors, (1809), 1456 states have internal predecessors, (1809), 78 states have call successors, (78), 18 states have call predecessors, (78), 18 states have return successors, (78), 75 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:37:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 1965 transitions. [2024-11-13 14:37:10,491 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 1965 transitions. Word has length 113 [2024-11-13 14:37:10,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:10,492 INFO L471 AbstractCegarLoop]: Abstraction has 1550 states and 1965 transitions. [2024-11-13 14:37:10,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 3.96) internal successors, (99), 24 states have internal predecessors, (99), 7 states have call successors, (24), 6 states have call predecessors, (24), 7 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-13 14:37:10,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 1965 transitions. [2024-11-13 14:37:10,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:37:10,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:10,495 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:10,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-11-13 14:37:10,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-13 14:37:10,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:37:10,896 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:37:10,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:10,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1648617829, now seen corresponding path program 1 times [2024-11-13 14:37:10,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:37:10,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070766030] [2024-11-13 14:37:10,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:10,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:10,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:37:10,899 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:37:10,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-13 14:37:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:11,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:37:11,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:11,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 14:37:11,838 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:37:11,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:37:11,839 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:37:11,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070766030] [2024-11-13 14:37:11,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070766030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:37:11,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:37:11,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:37:11,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706218528] [2024-11-13 14:37:11,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:11,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:37:11,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:37:11,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:37:11,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:37:11,841 INFO L87 Difference]: Start difference. First operand 1550 states and 1965 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:13,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:13,145 INFO L93 Difference]: Finished difference Result 1682 states and 2130 transitions. [2024-11-13 14:37:13,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:37:13,146 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-13 14:37:13,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:13,150 INFO L225 Difference]: With dead ends: 1682 [2024-11-13 14:37:13,150 INFO L226 Difference]: Without dead ends: 1680 [2024-11-13 14:37:13,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:37:13,152 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 204 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:13,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 713 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:37:13,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2024-11-13 14:37:13,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1576. [2024-11-13 14:37:13,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1479 states have (on average 1.2501690331304935) internal successors, (1849), 1482 states have internal predecessors, (1849), 78 states have call successors, (78), 18 states have call predecessors, (78), 18 states have return successors, (78), 75 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-13 14:37:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2005 transitions. [2024-11-13 14:37:13,267 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2005 transitions. Word has length 115 [2024-11-13 14:37:13,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:13,267 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 2005 transitions. [2024-11-13 14:37:13,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:13,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2005 transitions. [2024-11-13 14:37:13,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:37:13,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:13,270 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:13,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-13 14:37:13,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:13,471 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:37:13,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:13,471 INFO L85 PathProgramCache]: Analyzing trace with hash -723121433, now seen corresponding path program 1 times [2024-11-13 14:37:13,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:37:13,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142259697] [2024-11-13 14:37:13,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:13,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:13,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:37:13,474 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:37:13,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-13 14:37:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:14,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 14:37:14,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:16,322 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:37:16,323 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:37:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:37:16,765 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:37:16,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142259697] [2024-11-13 14:37:16,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [142259697] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:16,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:37:16,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-13 14:37:16,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819523995] [2024-11-13 14:37:16,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:16,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:37:16,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:37:16,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:37:16,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:37:16,767 INFO L87 Difference]: Start difference. First operand 1576 states and 2005 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:17,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:17,590 INFO L93 Difference]: Finished difference Result 3786 states and 4789 transitions. [2024-11-13 14:37:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:37:17,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-13 14:37:17,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:17,597 INFO L225 Difference]: With dead ends: 3786 [2024-11-13 14:37:17,597 INFO L226 Difference]: Without dead ends: 2213 [2024-11-13 14:37:17,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:37:17,603 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 86 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:17,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 449 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:37:17,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2213 states. [2024-11-13 14:37:17,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2213 to 2168. [2024-11-13 14:37:17,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 2029 states have (on average 1.2355840315426319) internal successors, (2507), 2039 states have internal predecessors, (2507), 106 states have call successors, (106), 32 states have call predecessors, (106), 32 states have return successors, (106), 96 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-13 14:37:17,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 2719 transitions. [2024-11-13 14:37:17,799 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 2719 transitions. Word has length 115 [2024-11-13 14:37:17,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:17,800 INFO L471 AbstractCegarLoop]: Abstraction has 2168 states and 2719 transitions. [2024-11-13 14:37:17,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 2719 transitions. [2024-11-13 14:37:17,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:37:17,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:17,802 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:17,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-11-13 14:37:18,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:18,002 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:37:18,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:18,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1232594523, now seen corresponding path program 1 times [2024-11-13 14:37:18,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:37:18,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601074982] [2024-11-13 14:37:18,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:18,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:18,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:37:18,006 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:37:18,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-13 14:37:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:18,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 14:37:18,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:19,722 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 14:37:19,722 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:37:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:37:19,945 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:37:19,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601074982] [2024-11-13 14:37:19,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601074982] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:19,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:37:19,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2024-11-13 14:37:19,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19401681] [2024-11-13 14:37:19,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:19,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:37:19,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:37:19,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:37:19,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:37:19,946 INFO L87 Difference]: Start difference. First operand 2168 states and 2719 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:20,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:20,592 INFO L93 Difference]: Finished difference Result 5053 states and 6333 transitions. [2024-11-13 14:37:20,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:37:20,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-13 14:37:20,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:20,602 INFO L225 Difference]: With dead ends: 5053 [2024-11-13 14:37:20,603 INFO L226 Difference]: Without dead ends: 2888 [2024-11-13 14:37:20,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:37:20,606 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 84 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:20,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 555 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:37:20,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2024-11-13 14:37:20,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2866. [2024-11-13 14:37:20,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2641 states have (on average 1.2241575160923892) internal successors, (3233), 2659 states have internal predecessors, (3233), 174 states have call successors, (174), 50 states have call predecessors, (174), 50 states have return successors, (174), 156 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:37:20,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 3581 transitions. [2024-11-13 14:37:20,946 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 3581 transitions. Word has length 115 [2024-11-13 14:37:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:20,947 INFO L471 AbstractCegarLoop]: Abstraction has 2866 states and 3581 transitions. [2024-11-13 14:37:20,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 3581 transitions. [2024-11-13 14:37:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:37:20,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:20,953 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:20,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-13 14:37:21,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:21,154 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:37:21,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:21,154 INFO L85 PathProgramCache]: Analyzing trace with hash 566618741, now seen corresponding path program 1 times [2024-11-13 14:37:21,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:37:21,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571293005] [2024-11-13 14:37:21,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:21,155 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:21,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:37:21,157 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:37:21,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-13 14:37:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:21,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:37:21,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:22,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-13 14:37:22,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-11-13 14:37:22,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 14:37:22,351 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-13 14:37:22,351 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:37:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:37:22,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:37:22,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571293005] [2024-11-13 14:37:22,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571293005] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:22,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:37:22,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 16 [2024-11-13 14:37:22,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942036170] [2024-11-13 14:37:22,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:22,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:37:22,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:37:22,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:37:22,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:37:22,860 INFO L87 Difference]: Start difference. First operand 2866 states and 3581 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:24,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:24,129 INFO L93 Difference]: Finished difference Result 4858 states and 6128 transitions. [2024-11-13 14:37:24,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:37:24,129 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-13 14:37:24,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:24,142 INFO L225 Difference]: With dead ends: 4858 [2024-11-13 14:37:24,142 INFO L226 Difference]: Without dead ends: 2949 [2024-11-13 14:37:24,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 213 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:37:24,146 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 86 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:24,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 1454 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:37:24,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2024-11-13 14:37:24,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 2543. [2024-11-13 14:37:24,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2543 states, 2318 states have (on average 1.2092320966350303) internal successors, (2803), 2336 states have internal predecessors, (2803), 174 states have call successors, (174), 50 states have call predecessors, (174), 50 states have return successors, (174), 156 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:37:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 3151 transitions. [2024-11-13 14:37:24,438 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 3151 transitions. Word has length 115 [2024-11-13 14:37:24,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:24,439 INFO L471 AbstractCegarLoop]: Abstraction has 2543 states and 3151 transitions. [2024-11-13 14:37:24,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:24,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 3151 transitions. [2024-11-13 14:37:24,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:37:24,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:24,443 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:24,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-13 14:37:24,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:24,644 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:37:24,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:24,644 INFO L85 PathProgramCache]: Analyzing trace with hash 173591731, now seen corresponding path program 1 times [2024-11-13 14:37:24,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:37:24,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114842783] [2024-11-13 14:37:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:24,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:24,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:37:24,647 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:37:24,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-11-13 14:37:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:25,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:37:25,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:25,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-11-13 14:37:25,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-13 14:37:25,381 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:37:25,382 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:37:25,382 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:37:25,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114842783] [2024-11-13 14:37:25,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114842783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:37:25,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:37:25,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:37:25,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559151420] [2024-11-13 14:37:25,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:25,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:37:25,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:37:25,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:37:25,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:37:25,385 INFO L87 Difference]: Start difference. First operand 2543 states and 3151 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:26,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:26,032 INFO L93 Difference]: Finished difference Result 5051 states and 6335 transitions. [2024-11-13 14:37:26,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:37:26,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-13 14:37:26,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:26,045 INFO L225 Difference]: With dead ends: 5051 [2024-11-13 14:37:26,045 INFO L226 Difference]: Without dead ends: 3326 [2024-11-13 14:37:26,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:37:26,049 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 78 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:26,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 691 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:37:26,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3326 states. [2024-11-13 14:37:26,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3326 to 2866. [2024-11-13 14:37:26,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2641 states have (on average 1.2184778492995079) internal successors, (3218), 2659 states have internal predecessors, (3218), 174 states have call successors, (174), 50 states have call predecessors, (174), 50 states have return successors, (174), 156 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:37:26,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 3566 transitions. [2024-11-13 14:37:26,269 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 3566 transitions. Word has length 115 [2024-11-13 14:37:26,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:26,270 INFO L471 AbstractCegarLoop]: Abstraction has 2866 states and 3566 transitions. [2024-11-13 14:37:26,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:26,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 3566 transitions. [2024-11-13 14:37:26,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:37:26,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:26,272 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:26,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2024-11-13 14:37:26,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:26,473 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:37:26,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:26,474 INFO L85 PathProgramCache]: Analyzing trace with hash 452119870, now seen corresponding path program 1 times [2024-11-13 14:37:26,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:37:26,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985853209] [2024-11-13 14:37:26,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:26,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:26,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:37:26,476 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:37:26,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-11-13 14:37:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:26,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:37:26,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:29,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 14:37:29,142 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-13 14:37:29,142 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:37:29,668 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:37:29,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:37:29,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985853209] [2024-11-13 14:37:29,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985853209] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:29,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:37:29,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2024-11-13 14:37:29,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127698100] [2024-11-13 14:37:29,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:29,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:37:29,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:37:29,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:37:29,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:37:29,670 INFO L87 Difference]: Start difference. First operand 2866 states and 3566 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:30,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:30,919 INFO L93 Difference]: Finished difference Result 4955 states and 6224 transitions. [2024-11-13 14:37:30,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:37:30,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-13 14:37:30,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:30,927 INFO L225 Difference]: With dead ends: 4955 [2024-11-13 14:37:30,927 INFO L226 Difference]: Without dead ends: 3005 [2024-11-13 14:37:30,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:37:30,929 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 44 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:30,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 472 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:37:30,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2024-11-13 14:37:31,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 2866. [2024-11-13 14:37:31,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2641 states have (on average 1.1976524043922756) internal successors, (3163), 2659 states have internal predecessors, (3163), 174 states have call successors, (174), 50 states have call predecessors, (174), 50 states have return successors, (174), 156 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-13 14:37:31,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 3511 transitions. [2024-11-13 14:37:31,133 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 3511 transitions. Word has length 115 [2024-11-13 14:37:31,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:31,133 INFO L471 AbstractCegarLoop]: Abstraction has 2866 states and 3511 transitions. [2024-11-13 14:37:31,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:31,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 3511 transitions. [2024-11-13 14:37:31,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:37:31,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:31,135 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:31,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-11-13 14:37:31,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:31,336 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:37:31,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:31,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1952822135, now seen corresponding path program 1 times [2024-11-13 14:37:31,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:37:31,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039256733] [2024-11-13 14:37:31,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:31,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:31,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:37:31,339 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:37:31,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-11-13 14:37:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:31,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:37:31,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:32,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-13 14:37:32,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-13 14:37:32,081 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:37:32,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:37:32,081 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:37:32,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039256733] [2024-11-13 14:37:32,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039256733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:37:32,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:37:32,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:37:32,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511286312] [2024-11-13 14:37:32,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:32,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:37:32,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:37:32,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:37:32,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:37:32,084 INFO L87 Difference]: Start difference. First operand 2866 states and 3511 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:32,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:32,886 INFO L93 Difference]: Finished difference Result 5124 states and 6357 transitions. [2024-11-13 14:37:32,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:37:32,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-13 14:37:32,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:32,897 INFO L225 Difference]: With dead ends: 5124 [2024-11-13 14:37:32,897 INFO L226 Difference]: Without dead ends: 3278 [2024-11-13 14:37:32,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:37:32,902 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 79 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:32,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 579 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:37:32,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2024-11-13 14:37:33,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 2834. [2024-11-13 14:37:33,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2599 states have (on average 1.19276644863409) internal successors, (3100), 2618 states have internal predecessors, (3100), 180 states have call successors, (180), 54 states have call predecessors, (180), 54 states have return successors, (180), 161 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-13 14:37:33,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3460 transitions. [2024-11-13 14:37:33,257 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3460 transitions. Word has length 115 [2024-11-13 14:37:33,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:33,258 INFO L471 AbstractCegarLoop]: Abstraction has 2834 states and 3460 transitions. [2024-11-13 14:37:33,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:33,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3460 transitions. [2024-11-13 14:37:33,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:37:33,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:33,261 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:33,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-11-13 14:37:33,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:33,466 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:37:33,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:33,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1559795125, now seen corresponding path program 1 times [2024-11-13 14:37:33,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:37:33,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179729728] [2024-11-13 14:37:33,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:33,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:33,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:37:33,472 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:37:33,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-11-13 14:37:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:34,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:37:34,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:34,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-13 14:37:34,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2024-11-13 14:37:34,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-11-13 14:37:35,183 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-13 14:37:35,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:37:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:37:35,739 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:37:35,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179729728] [2024-11-13 14:37:35,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179729728] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:35,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:37:35,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 16 [2024-11-13 14:37:35,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382549609] [2024-11-13 14:37:35,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:35,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:37:35,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:37:35,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:37:35,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:37:35,742 INFO L87 Difference]: Start difference. First operand 2834 states and 3460 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:37,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:37,176 INFO L93 Difference]: Finished difference Result 5251 states and 6493 transitions. [2024-11-13 14:37:37,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:37:37,177 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-13 14:37:37,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:37,185 INFO L225 Difference]: With dead ends: 5251 [2024-11-13 14:37:37,185 INFO L226 Difference]: Without dead ends: 3385 [2024-11-13 14:37:37,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 213 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:37:37,188 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 88 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:37,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 1639 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:37:37,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2024-11-13 14:37:37,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 3377. [2024-11-13 14:37:37,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 3058 states have (on average 1.1903204708960105) internal successors, (3640), 3086 states have internal predecessors, (3640), 240 states have call successors, (240), 78 states have call predecessors, (240), 78 states have return successors, (240), 212 states have call predecessors, (240), 240 states have call successors, (240) [2024-11-13 14:37:37,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 4120 transitions. [2024-11-13 14:37:37,656 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 4120 transitions. Word has length 115 [2024-11-13 14:37:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:37,657 INFO L471 AbstractCegarLoop]: Abstraction has 3377 states and 4120 transitions. [2024-11-13 14:37:37,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 4120 transitions. [2024-11-13 14:37:37,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 14:37:37,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:37,659 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:37:37,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2024-11-13 14:37:37,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:37,860 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:37:37,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:37,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1685653561, now seen corresponding path program 1 times [2024-11-13 14:37:37,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:37:37,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63532400] [2024-11-13 14:37:37,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:37,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:37,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:37:37,865 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:37:37,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-11-13 14:37:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:38,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:37:38,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:37:40,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 40 [2024-11-13 14:37:40,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2024-11-13 14:37:40,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2024-11-13 14:37:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-13 14:37:40,543 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:37:46,768 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-13 14:37:46,769 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:37:46,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63532400] [2024-11-13 14:37:46,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63532400] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:46,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:37:46,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-11-13 14:37:46,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283304856] [2024-11-13 14:37:46,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:37:46,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:37:46,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:37:46,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:37:46,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:37:46,771 INFO L87 Difference]: Start difference. First operand 3377 states and 4120 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:56,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:37:56,960 INFO L93 Difference]: Finished difference Result 6399 states and 7836 transitions. [2024-11-13 14:37:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:37:56,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-13 14:37:56,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:37:56,982 INFO L225 Difference]: With dead ends: 6399 [2024-11-13 14:37:56,982 INFO L226 Difference]: Without dead ends: 3422 [2024-11-13 14:37:56,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:37:56,987 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 62 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:37:56,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 372 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-13 14:37:56,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3422 states. [2024-11-13 14:37:57,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3422 to 2956. [2024-11-13 14:37:57,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2956 states, 2637 states have (on average 1.1827834660599166) internal successors, (3119), 2665 states have internal predecessors, (3119), 240 states have call successors, (240), 78 states have call predecessors, (240), 78 states have return successors, (240), 212 states have call predecessors, (240), 240 states have call successors, (240) [2024-11-13 14:37:57,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 3599 transitions. [2024-11-13 14:37:57,405 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 3599 transitions. Word has length 119 [2024-11-13 14:37:57,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:37:57,406 INFO L471 AbstractCegarLoop]: Abstraction has 2956 states and 3599 transitions. [2024-11-13 14:37:57,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:37:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 3599 transitions. [2024-11-13 14:37:57,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-13 14:37:57,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:37:57,411 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:37:57,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2024-11-13 14:37:57,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:57,612 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:37:57,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:37:57,613 INFO L85 PathProgramCache]: Analyzing trace with hash -3735841, now seen corresponding path program 1 times [2024-11-13 14:37:57,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:37:57,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670904571] [2024-11-13 14:37:57,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:37:57,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:37:57,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:37:57,616 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:37:57,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-11-13 14:37:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:58,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:37:58,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:38:00,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:38:00,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:38:00,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:38:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 22 proven. 648 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-13 14:38:00,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:38:00,736 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:38:00,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670904571] [2024-11-13 14:38:00,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670904571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:38:00,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468641145] [2024-11-13 14:38:00,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:38:00,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:38:00,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:38:00,739 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:38:00,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-13 14:38:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:38:01,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 14:38:01,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:38:02,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-13 14:38:02,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 14:38:02,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:38:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 22 proven. 648 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-13 14:38:03,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:38:03,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468641145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:38:03,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:38:03,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2024-11-13 14:38:03,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195091822] [2024-11-13 14:38:03,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:38:03,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:38:03,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:38:03,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:38:03,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:38:03,098 INFO L87 Difference]: Start difference. First operand 2956 states and 3599 transitions. Second operand has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-13 14:38:06,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:38:06,165 INFO L93 Difference]: Finished difference Result 4908 states and 5971 transitions. [2024-11-13 14:38:06,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 14:38:06,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 218 [2024-11-13 14:38:06,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:38:06,177 INFO L225 Difference]: With dead ends: 4908 [2024-11-13 14:38:06,177 INFO L226 Difference]: Without dead ends: 3231 [2024-11-13 14:38:06,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 466 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=207, Invalid=849, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 14:38:06,184 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 271 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:38:06,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 892 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 14:38:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3231 states. [2024-11-13 14:38:06,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3231 to 2101. [2024-11-13 14:38:06,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2101 states, 1879 states have (on average 1.1729643427354977) internal successors, (2204), 1896 states have internal predecessors, (2204), 166 states have call successors, (166), 55 states have call predecessors, (166), 55 states have return successors, (166), 149 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-13 14:38:06,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 2536 transitions. [2024-11-13 14:38:06,517 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 2536 transitions. Word has length 218 [2024-11-13 14:38:06,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:38:06,519 INFO L471 AbstractCegarLoop]: Abstraction has 2101 states and 2536 transitions. [2024-11-13 14:38:06,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-13 14:38:06,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 2536 transitions. [2024-11-13 14:38:06,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-13 14:38:06,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:38:06,524 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:38:06,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-13 14:38:06,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-11-13 14:38:06,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:38:06,925 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:38:06,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:38:06,926 INFO L85 PathProgramCache]: Analyzing trace with hash -376496219, now seen corresponding path program 1 times [2024-11-13 14:38:06,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:38:06,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44057280] [2024-11-13 14:38:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:38:06,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:38:06,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:38:06,928 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:38:06,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-11-13 14:38:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:38:07,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-13 14:38:07,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:38:13,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 14:38:15,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-13 14:38:15,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:38:15,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:38:21,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2024-11-13 14:38:21,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-11-13 14:38:22,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 33 proven. 794 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-13 14:38:22,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:38:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2024-11-13 14:38:23,667 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:38:23,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44057280] [2024-11-13 14:38:23,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44057280] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:38:23,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:38:23,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [27] total 32 [2024-11-13 14:38:23,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682921883] [2024-11-13 14:38:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:38:23,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:38:23,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:38:23,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:38:23,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=889, Unknown=0, NotChecked=0, Total=992 [2024-11-13 14:38:23,669 INFO L87 Difference]: Start difference. First operand 2101 states and 2536 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:38:25,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:38:25,748 INFO L93 Difference]: Finished difference Result 3636 states and 4411 transitions. [2024-11-13 14:38:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:38:25,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 220 [2024-11-13 14:38:25,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:38:25,757 INFO L225 Difference]: With dead ends: 3636 [2024-11-13 14:38:25,758 INFO L226 Difference]: Without dead ends: 2182 [2024-11-13 14:38:25,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=117, Invalid=1005, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 14:38:25,761 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 70 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:38:25,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 463 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:38:25,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2024-11-13 14:38:25,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2077. [2024-11-13 14:38:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1855 states have (on average 1.168733153638814) internal successors, (2168), 1872 states have internal predecessors, (2168), 166 states have call successors, (166), 55 states have call predecessors, (166), 55 states have return successors, (166), 149 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-13 14:38:25,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2500 transitions. [2024-11-13 14:38:25,985 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2500 transitions. Word has length 220 [2024-11-13 14:38:25,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:38:25,985 INFO L471 AbstractCegarLoop]: Abstraction has 2077 states and 2500 transitions. [2024-11-13 14:38:25,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:38:25,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2500 transitions. [2024-11-13 14:38:25,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-13 14:38:25,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:38:25,990 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:38:26,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-11-13 14:38:26,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:38:26,191 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:38:26,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:38:26,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1273258317, now seen corresponding path program 1 times [2024-11-13 14:38:26,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:38:26,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770143876] [2024-11-13 14:38:26,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:38:26,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:38:26,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:38:26,197 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:38:26,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-11-13 14:38:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:38:27,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-13 14:38:27,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:38:32,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-13 14:38:34,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-13 14:38:34,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:38:34,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 14:38:41,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2024-11-13 14:38:41,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2024-11-13 14:38:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 33 proven. 794 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-13 14:38:41,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:38:42,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2024-11-13 14:38:42,836 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:38:42,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770143876] [2024-11-13 14:38:42,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770143876] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:38:42,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:38:42,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [27] total 32 [2024-11-13 14:38:42,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125124950] [2024-11-13 14:38:42,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:38:42,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:38:42,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:38:42,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:38:42,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=889, Unknown=0, NotChecked=0, Total=992 [2024-11-13 14:38:42,839 INFO L87 Difference]: Start difference. First operand 2077 states and 2500 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:38:44,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:38:44,773 INFO L93 Difference]: Finished difference Result 3600 states and 4357 transitions. [2024-11-13 14:38:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:38:44,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 220 [2024-11-13 14:38:44,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:38:44,784 INFO L225 Difference]: With dead ends: 3600 [2024-11-13 14:38:44,784 INFO L226 Difference]: Without dead ends: 2170 [2024-11-13 14:38:44,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=117, Invalid=1005, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 14:38:44,788 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 41 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:38:44,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 556 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:38:44,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-11-13 14:38:45,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 1935. [2024-11-13 14:38:45,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1713 states have (on average 1.1757151196730882) internal successors, (2014), 1730 states have internal predecessors, (2014), 166 states have call successors, (166), 55 states have call predecessors, (166), 55 states have return successors, (166), 149 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-13 14:38:45,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2346 transitions. [2024-11-13 14:38:45,168 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2346 transitions. Word has length 220 [2024-11-13 14:38:45,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:38:45,169 INFO L471 AbstractCegarLoop]: Abstraction has 1935 states and 2346 transitions. [2024-11-13 14:38:45,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:38:45,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2346 transitions. [2024-11-13 14:38:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-13 14:38:45,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:38:45,174 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:38:45,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2024-11-13 14:38:45,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:38:45,375 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:38:45,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:38:45,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1631755341, now seen corresponding path program 1 times [2024-11-13 14:38:45,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:38:45,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499365037] [2024-11-13 14:38:45,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:38:45,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:38:45,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:38:45,381 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:38:45,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-11-13 14:38:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:38:46,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:38:46,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:38:50,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 62 [2024-11-13 14:38:50,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 26 [2024-11-13 14:38:50,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 9 proven. 548 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2024-11-13 14:38:50,308 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:38:50,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2024-11-13 14:38:50,915 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:38:50,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499365037] [2024-11-13 14:38:50,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499365037] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:38:50,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:38:50,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-13 14:38:50,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324410486] [2024-11-13 14:38:50,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:38:50,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:38:50,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:38:50,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:38:50,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:38:50,917 INFO L87 Difference]: Start difference. First operand 1935 states and 2346 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:38:51,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:38:51,622 INFO L93 Difference]: Finished difference Result 4041 states and 4863 transitions. [2024-11-13 14:38:51,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:38:51,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 225 [2024-11-13 14:38:51,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:38:51,633 INFO L225 Difference]: With dead ends: 4041 [2024-11-13 14:38:51,634 INFO L226 Difference]: Without dead ends: 2623 [2024-11-13 14:38:51,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:38:51,638 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 51 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:38:51,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 492 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:38:51,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2024-11-13 14:38:52,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2357. [2024-11-13 14:38:52,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2111 states have (on average 1.1643770724774989) internal successors, (2458), 2132 states have internal predecessors, (2458), 182 states have call successors, (182), 63 states have call predecessors, (182), 63 states have return successors, (182), 161 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-13 14:38:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 2822 transitions. [2024-11-13 14:38:52,120 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 2822 transitions. Word has length 225 [2024-11-13 14:38:52,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:38:52,121 INFO L471 AbstractCegarLoop]: Abstraction has 2357 states and 2822 transitions. [2024-11-13 14:38:52,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:38:52,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 2822 transitions. [2024-11-13 14:38:52,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-13 14:38:52,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:38:52,126 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:38:52,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2024-11-13 14:38:52,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:38:52,328 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:38:52,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:38:52,329 INFO L85 PathProgramCache]: Analyzing trace with hash -930690763, now seen corresponding path program 1 times [2024-11-13 14:38:52,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:38:52,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387277944] [2024-11-13 14:38:52,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:38:52,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:38:52,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:38:52,335 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:38:52,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-11-13 14:38:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:38:53,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 14:38:53,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:38:56,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 14:38:56,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2024-11-13 14:38:56,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 49 [2024-11-13 14:38:57,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 6 proven. 510 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2024-11-13 14:38:57,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:38:57,700 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:38:57,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387277944] [2024-11-13 14:38:57,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1387277944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:38:57,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855973393] [2024-11-13 14:38:57,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:38:57,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:38:57,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:38:57,702 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:38:57,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-13 14:39:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:06,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 14:39:06,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:39:09,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 14:39:09,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2024-11-13 14:39:10,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 37 [2024-11-13 14:39:10,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 8 proven. 555 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2024-11-13 14:39:10,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:39:10,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855973393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:39:10,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:39:10,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 22 [2024-11-13 14:39:10,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824357407] [2024-11-13 14:39:10,623 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:39:10,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 14:39:10,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:39:10,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 14:39:10,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=771, Unknown=0, NotChecked=0, Total=870 [2024-11-13 14:39:10,625 INFO L87 Difference]: Start difference. First operand 2357 states and 2822 transitions. Second operand has 23 states, 23 states have (on average 5.956521739130435) internal successors, (137), 22 states have internal predecessors, (137), 3 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-13 14:39:19,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:39:19,086 INFO L93 Difference]: Finished difference Result 6859 states and 8142 transitions. [2024-11-13 14:39:19,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 14:39:19,088 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.956521739130435) internal successors, (137), 22 states have internal predecessors, (137), 3 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 225 [2024-11-13 14:39:19,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:39:19,104 INFO L225 Difference]: With dead ends: 6859 [2024-11-13 14:39:19,105 INFO L226 Difference]: Without dead ends: 5019 [2024-11-13 14:39:19,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 479 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=344, Invalid=2518, Unknown=0, NotChecked=0, Total=2862 [2024-11-13 14:39:19,110 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 176 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:39:19,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 2147 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-13 14:39:19,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5019 states. [2024-11-13 14:39:20,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5019 to 4801. [2024-11-13 14:39:20,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4801 states, 4278 states have (on average 1.1545114539504442) internal successors, (4939), 4340 states have internal predecessors, (4939), 383 states have call successors, (383), 139 states have call predecessors, (383), 139 states have return successors, (383), 321 states have call predecessors, (383), 383 states have call successors, (383) [2024-11-13 14:39:20,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4801 states to 4801 states and 5705 transitions. [2024-11-13 14:39:20,055 INFO L78 Accepts]: Start accepts. Automaton has 4801 states and 5705 transitions. Word has length 225 [2024-11-13 14:39:20,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:39:20,056 INFO L471 AbstractCegarLoop]: Abstraction has 4801 states and 5705 transitions. [2024-11-13 14:39:20,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.956521739130435) internal successors, (137), 22 states have internal predecessors, (137), 3 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-13 14:39:20,056 INFO L276 IsEmpty]: Start isEmpty. Operand 4801 states and 5705 transitions. [2024-11-13 14:39:20,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-13 14:39:20,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:39:20,066 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:39:20,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-13 14:39:20,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2024-11-13 14:39:20,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:39:20,467 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:39:20,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:39:20,469 INFO L85 PathProgramCache]: Analyzing trace with hash 362389365, now seen corresponding path program 1 times [2024-11-13 14:39:20,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:39:20,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648686759] [2024-11-13 14:39:20,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:39:20,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:39:20,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:39:20,474 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:39:20,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-11-13 14:39:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:21,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:39:21,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:39:21,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 14:39:21,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2024-11-13 14:39:21,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-11-13 14:39:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2024-11-13 14:39:21,888 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:39:21,888 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:39:21,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648686759] [2024-11-13 14:39:21,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648686759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:39:21,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:39:21,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 14:39:21,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544321672] [2024-11-13 14:39:21,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:39:21,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:39:21,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:39:21,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:39:21,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:39:21,891 INFO L87 Difference]: Start difference. First operand 4801 states and 5705 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:39:24,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:39:24,129 INFO L93 Difference]: Finished difference Result 9731 states and 11453 transitions. [2024-11-13 14:39:24,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:39:24,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 225 [2024-11-13 14:39:24,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:39:24,151 INFO L225 Difference]: With dead ends: 9731 [2024-11-13 14:39:24,151 INFO L226 Difference]: Without dead ends: 5913 [2024-11-13 14:39:24,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:39:24,159 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 56 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:39:24,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1315 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:39:24,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5913 states. [2024-11-13 14:39:25,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5913 to 4969. [2024-11-13 14:39:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4969 states, 4422 states have (on average 1.1440524649479873) internal successors, (5059), 4488 states have internal predecessors, (5059), 399 states have call successors, (399), 147 states have call predecessors, (399), 147 states have return successors, (399), 333 states have call predecessors, (399), 399 states have call successors, (399) [2024-11-13 14:39:25,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4969 states to 4969 states and 5857 transitions. [2024-11-13 14:39:25,333 INFO L78 Accepts]: Start accepts. Automaton has 4969 states and 5857 transitions. Word has length 225 [2024-11-13 14:39:25,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:39:25,334 INFO L471 AbstractCegarLoop]: Abstraction has 4969 states and 5857 transitions. [2024-11-13 14:39:25,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:39:25,334 INFO L276 IsEmpty]: Start isEmpty. Operand 4969 states and 5857 transitions. [2024-11-13 14:39:25,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-13 14:39:25,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:39:25,344 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:39:25,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2024-11-13 14:39:25,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:39:25,544 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:39:25,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:39:25,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1063453943, now seen corresponding path program 1 times [2024-11-13 14:39:25,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:39:25,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074907043] [2024-11-13 14:39:25,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:39:25,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:39:25,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:39:25,553 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:39:25,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2024-11-13 14:39:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:26,305 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:39:26,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:39:29,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 61 [2024-11-13 14:39:29,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2024-11-13 14:39:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 9 proven. 548 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2024-11-13 14:39:30,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:39:30,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2024-11-13 14:39:30,565 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:39:30,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074907043] [2024-11-13 14:39:30,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074907043] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:39:30,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:39:30,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-13 14:39:30,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171926604] [2024-11-13 14:39:30,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:39:30,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:39:30,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:39:30,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:39:30,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:39:30,568 INFO L87 Difference]: Start difference. First operand 4969 states and 5857 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:39:31,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:39:31,778 INFO L93 Difference]: Finished difference Result 9387 states and 10970 transitions. [2024-11-13 14:39:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:39:31,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 225 [2024-11-13 14:39:31,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:39:31,794 INFO L225 Difference]: With dead ends: 9387 [2024-11-13 14:39:31,795 INFO L226 Difference]: Without dead ends: 5401 [2024-11-13 14:39:31,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:39:31,803 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 82 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:39:31,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 429 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:39:31,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5401 states. [2024-11-13 14:39:32,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 4849. [2024-11-13 14:39:32,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4849 states, 4302 states have (on average 1.1308693630869364) internal successors, (4865), 4368 states have internal predecessors, (4865), 399 states have call successors, (399), 147 states have call predecessors, (399), 147 states have return successors, (399), 333 states have call predecessors, (399), 399 states have call successors, (399) [2024-11-13 14:39:32,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4849 states to 4849 states and 5663 transitions. [2024-11-13 14:39:32,770 INFO L78 Accepts]: Start accepts. Automaton has 4849 states and 5663 transitions. Word has length 225 [2024-11-13 14:39:32,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:39:32,770 INFO L471 AbstractCegarLoop]: Abstraction has 4849 states and 5663 transitions. [2024-11-13 14:39:32,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-13 14:39:32,770 INFO L276 IsEmpty]: Start isEmpty. Operand 4849 states and 5663 transitions. [2024-11-13 14:39:32,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-13 14:39:32,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:39:32,776 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:39:32,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2024-11-13 14:39:32,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:39:32,976 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:39:32,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:39:32,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1453233975, now seen corresponding path program 1 times [2024-11-13 14:39:32,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:39:32,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011044691] [2024-11-13 14:39:32,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:39:32,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:39:32,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:39:32,981 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:39:32,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2024-11-13 14:39:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:33,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:39:33,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:39:33,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 515 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2024-11-13 14:39:33,784 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:39:33,784 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:39:33,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011044691] [2024-11-13 14:39:33,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011044691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:39:33,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:39:33,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:39:33,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426844116] [2024-11-13 14:39:33,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:39:33,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:39:33,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:39:33,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:39:33,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:39:33,786 INFO L87 Difference]: Start difference. First operand 4849 states and 5663 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 14:39:34,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:39:34,845 INFO L93 Difference]: Finished difference Result 9654 states and 11273 transitions. [2024-11-13 14:39:34,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:39:34,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 225 [2024-11-13 14:39:34,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:39:34,858 INFO L225 Difference]: With dead ends: 9654 [2024-11-13 14:39:34,858 INFO L226 Difference]: Without dead ends: 4849 [2024-11-13 14:39:34,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:39:34,868 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:39:34,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:39:34,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2024-11-13 14:39:35,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 4849. [2024-11-13 14:39:35,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4849 states, 4302 states have (on average 1.1269177126917713) internal successors, (4848), 4368 states have internal predecessors, (4848), 399 states have call successors, (399), 147 states have call predecessors, (399), 147 states have return successors, (399), 333 states have call predecessors, (399), 399 states have call successors, (399) [2024-11-13 14:39:35,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4849 states to 4849 states and 5646 transitions. [2024-11-13 14:39:35,647 INFO L78 Accepts]: Start accepts. Automaton has 4849 states and 5646 transitions. Word has length 225 [2024-11-13 14:39:35,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:39:35,648 INFO L471 AbstractCegarLoop]: Abstraction has 4849 states and 5646 transitions. [2024-11-13 14:39:35,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 14:39:35,648 INFO L276 IsEmpty]: Start isEmpty. Operand 4849 states and 5646 transitions. [2024-11-13 14:39:35,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-13 14:39:35,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:39:35,656 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:39:35,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2024-11-13 14:39:35,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:39:35,856 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:39:35,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:39:35,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1854277723, now seen corresponding path program 1 times [2024-11-13 14:39:35,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:39:35,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13648205] [2024-11-13 14:39:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:39:35,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:39:35,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:39:35,860 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:39:35,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2024-11-13 14:39:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:36,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 14:39:36,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:39:44,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-13 14:39:44,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-11-13 14:39:45,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 20 proven. 589 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2024-11-13 14:39:45,034 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:39:46,665 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 14:39:46,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 63 [2024-11-13 14:39:47,832 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:39:47,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13648205] [2024-11-13 14:39:47,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13648205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:39:47,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197562242] [2024-11-13 14:39:47,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:39:47,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:39:47,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:39:47,836 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:39:47,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-13 14:39:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:39:48,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 14:39:48,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:39:53,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 14:39:53,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2024-11-13 14:39:53,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 48 [2024-11-13 14:39:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 11 proven. 553 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2024-11-13 14:39:54,679 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:39:56,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197562242] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:39:56,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:39:56,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 28 [2024-11-13 14:39:56,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178993786] [2024-11-13 14:39:56,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:39:56,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-13 14:39:56,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:39:56,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-13 14:39:56,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1736, Unknown=0, NotChecked=0, Total=1892 [2024-11-13 14:39:56,228 INFO L87 Difference]: Start difference. First operand 4849 states and 5646 transitions. Second operand has 29 states, 28 states have (on average 7.678571428571429) internal successors, (215), 27 states have internal predecessors, (215), 6 states have call successors, (39), 6 states have call predecessors, (39), 7 states have return successors, (40), 5 states have call predecessors, (40), 6 states have call successors, (40) [2024-11-13 14:40:30,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:40:30,501 INFO L93 Difference]: Finished difference Result 23656 states and 27176 transitions. [2024-11-13 14:40:30,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-11-13 14:40:30,502 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 7.678571428571429) internal successors, (215), 27 states have internal predecessors, (215), 6 states have call successors, (39), 6 states have call predecessors, (39), 7 states have return successors, (40), 5 states have call predecessors, (40), 6 states have call successors, (40) Word has length 227 [2024-11-13 14:40:30,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:40:30,539 INFO L225 Difference]: With dead ends: 23656 [2024-11-13 14:40:30,539 INFO L226 Difference]: Without dead ends: 19790 [2024-11-13 14:40:30,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4594 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=1558, Invalid=15212, Unknown=0, NotChecked=0, Total=16770 [2024-11-13 14:40:30,554 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 887 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 2551 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 2736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:40:30,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 3596 Invalid, 2736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2551 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2024-11-13 14:40:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19790 states. [2024-11-13 14:40:32,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19790 to 9932. [2024-11-13 14:40:32,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9932 states, 8658 states have (on average 1.1335181335181335) internal successors, (9814), 8879 states have internal predecessors, (9814), 948 states have call successors, (948), 325 states have call predecessors, (948), 325 states have return successors, (948), 727 states have call predecessors, (948), 948 states have call successors, (948) [2024-11-13 14:40:32,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9932 states to 9932 states and 11710 transitions. [2024-11-13 14:40:32,643 INFO L78 Accepts]: Start accepts. Automaton has 9932 states and 11710 transitions. Word has length 227 [2024-11-13 14:40:32,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:40:32,643 INFO L471 AbstractCegarLoop]: Abstraction has 9932 states and 11710 transitions. [2024-11-13 14:40:32,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 7.678571428571429) internal successors, (215), 27 states have internal predecessors, (215), 6 states have call successors, (39), 6 states have call predecessors, (39), 7 states have return successors, (40), 5 states have call predecessors, (40), 6 states have call successors, (40) [2024-11-13 14:40:32,643 INFO L276 IsEmpty]: Start isEmpty. Operand 9932 states and 11710 transitions. [2024-11-13 14:40:32,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-13 14:40:32,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:40:32,653 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:40:32,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Ended with exit code 0 [2024-11-13 14:40:32,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-13 14:40:33,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:40:33,054 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:40:33,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:40:33,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1931178521, now seen corresponding path program 1 times [2024-11-13 14:40:33,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:40:33,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749462239] [2024-11-13 14:40:33,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:40:33,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:40:33,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:40:33,057 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:40:33,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2024-11-13 14:40:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:33,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:40:33,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:40:33,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 520 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2024-11-13 14:40:33,792 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:40:33,792 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:40:33,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749462239] [2024-11-13 14:40:33,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749462239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:40:33,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:40:33,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:40:33,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551957427] [2024-11-13 14:40:33,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:40:33,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:40:33,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:40:33,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:40:33,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:40:33,794 INFO L87 Difference]: Start difference. First operand 9932 states and 11710 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-13 14:40:35,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:40:35,918 INFO L93 Difference]: Finished difference Result 19211 states and 22601 transitions. [2024-11-13 14:40:35,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:40:35,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 227 [2024-11-13 14:40:35,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:40:35,943 INFO L225 Difference]: With dead ends: 19211 [2024-11-13 14:40:35,943 INFO L226 Difference]: Without dead ends: 9291 [2024-11-13 14:40:35,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:40:35,962 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 1 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:40:35,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 512 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:40:35,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9291 states. [2024-11-13 14:40:37,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9291 to 8972. [2024-11-13 14:40:37,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 7839 states have (on average 1.127184589871157) internal successors, (8836), 8028 states have internal predecessors, (8836), 831 states have call successors, (831), 301 states have call predecessors, (831), 301 states have return successors, (831), 642 states have call predecessors, (831), 831 states have call successors, (831) [2024-11-13 14:40:37,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 10498 transitions. [2024-11-13 14:40:37,943 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 10498 transitions. Word has length 227 [2024-11-13 14:40:37,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:40:37,943 INFO L471 AbstractCegarLoop]: Abstraction has 8972 states and 10498 transitions. [2024-11-13 14:40:37,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-13 14:40:37,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 10498 transitions. [2024-11-13 14:40:37,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-13 14:40:37,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:40:37,960 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:40:37,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Ended with exit code 0 [2024-11-13 14:40:38,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:40:38,161 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:40:38,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:40:38,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1709251227, now seen corresponding path program 1 times [2024-11-13 14:40:38,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:40:38,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767161020] [2024-11-13 14:40:38,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:40:38,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:40:38,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:40:38,164 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:40:38,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2024-11-13 14:40:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:39,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 14:40:39,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:40:39,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 556 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2024-11-13 14:40:39,050 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:40:39,050 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:40:39,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767161020] [2024-11-13 14:40:39,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767161020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:40:39,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:40:39,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:40:39,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860979747] [2024-11-13 14:40:39,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:40:39,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:40:39,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:40:39,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:40:39,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:40:39,052 INFO L87 Difference]: Start difference. First operand 8972 states and 10498 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-13 14:40:41,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:40:41,241 INFO L93 Difference]: Finished difference Result 17895 states and 20939 transitions. [2024-11-13 14:40:41,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:40:41,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 227 [2024-11-13 14:40:41,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:40:41,259 INFO L225 Difference]: With dead ends: 17895 [2024-11-13 14:40:41,259 INFO L226 Difference]: Without dead ends: 8972 [2024-11-13 14:40:41,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:40:41,273 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:40:41,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:40:41,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8972 states. [2024-11-13 14:40:42,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8972 to 8972. [2024-11-13 14:40:42,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 7839 states have (on average 1.1199132542416124) internal successors, (8779), 8028 states have internal predecessors, (8779), 831 states have call successors, (831), 301 states have call predecessors, (831), 301 states have return successors, (831), 642 states have call predecessors, (831), 831 states have call successors, (831) [2024-11-13 14:40:42,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 10441 transitions. [2024-11-13 14:40:42,981 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 10441 transitions. Word has length 227 [2024-11-13 14:40:42,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:40:42,981 INFO L471 AbstractCegarLoop]: Abstraction has 8972 states and 10441 transitions. [2024-11-13 14:40:42,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-13 14:40:42,982 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 10441 transitions. [2024-11-13 14:40:43,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-13 14:40:43,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:40:43,001 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:40:43,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2024-11-13 14:40:43,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:40:43,202 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:40:43,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:40:43,202 INFO L85 PathProgramCache]: Analyzing trace with hash 744331127, now seen corresponding path program 1 times [2024-11-13 14:40:43,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:40:43,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1094218538] [2024-11-13 14:40:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:40:43,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:40:43,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:40:43,209 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:40:43,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2024-11-13 14:40:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:40:44,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:40:44,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:40:44,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 43 [2024-11-13 14:40:44,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 471 proven. 69 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2024-11-13 14:40:44,949 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:40:45,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2024-11-13 14:40:45,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 91 proven. 18 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2024-11-13 14:40:45,336 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:40:45,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1094218538] [2024-11-13 14:40:45,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1094218538] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:40:45,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:40:45,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-11-13 14:40:45,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508055415] [2024-11-13 14:40:45,337 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:40:45,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 14:40:45,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:40:45,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 14:40:45,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:40:45,339 INFO L87 Difference]: Start difference. First operand 8972 states and 10441 transitions. Second operand has 12 states, 11 states have (on average 16.363636363636363) internal successors, (180), 12 states have internal predecessors, (180), 4 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (37), 3 states have call predecessors, (37), 4 states have call successors, (37) [2024-11-13 14:40:47,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:40:47,769 INFO L93 Difference]: Finished difference Result 15924 states and 18487 transitions. [2024-11-13 14:40:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:40:47,770 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.363636363636363) internal successors, (180), 12 states have internal predecessors, (180), 4 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (37), 3 states have call predecessors, (37), 4 states have call successors, (37) Word has length 229 [2024-11-13 14:40:47,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:40:47,776 INFO L225 Difference]: With dead ends: 15924 [2024-11-13 14:40:47,777 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 14:40:47,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:40:47,789 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 42 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:40:47,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 687 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:40:47,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 14:40:47,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 14:40:47,791 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) [2024-11-13 14:40:47,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 14:40:47,797 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2024-11-13 14:40:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:40:47,798 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:40:47,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.363636363636363) internal successors, (180), 12 states have internal predecessors, (180), 4 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (37), 3 states have call predecessors, (37), 4 states have call successors, (37) [2024-11-13 14:40:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 14:40:47,798 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 14:40:47,801 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:40:47,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2024-11-13 14:40:48,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25cb9a0c-4247-40b0-b0c7-a3efa0b074d8/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:40:48,005 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-13 14:40:48,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 14:41:07,475 WARN L286 SmtUtils]: Spent 18.74s on a formula simplification. DAG size of input: 555 DAG size of output: 519 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-13 14:42:00,754 WARN L286 SmtUtils]: Spent 52.21s on a formula simplification. DAG size of input: 595 DAG size of output: 563 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-13 14:42:15,145 WARN L286 SmtUtils]: Spent 14.39s on a formula simplification. DAG size of input: 455 DAG size of output: 419 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-13 14:42:57,497 WARN L286 SmtUtils]: Spent 42.35s on a formula simplification. DAG size of input: 590 DAG size of output: 558 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-13 14:43:42,878 WARN L286 SmtUtils]: Spent 44.70s on a formula simplification. DAG size of input: 598 DAG size of output: 566 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-13 14:44:46,155 WARN L286 SmtUtils]: Spent 46.35s on a formula simplification. DAG size of input: 242 DAG size of output: 244 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-13 14:44:53,416 WARN L286 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 237 DAG size of output: 226 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-13 14:45:29,524 WARN L286 SmtUtils]: Spent 31.34s on a formula simplification. DAG size of input: 257 DAG size of output: 255 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)