./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:05:39,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:05:40,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:05:40,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:05:40,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:05:40,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:05:40,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:05:40,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:05:40,036 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:05:40,036 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:05:40,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:05:40,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:05:40,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:05:40,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:05:40,037 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:05:40,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:05:40,037 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:05:40,037 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:05:40,037 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:05:40,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:05:40,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:05:40,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:05:40,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:05:40,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:05:40,038 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:05:40,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:05:40,038 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:05:40,038 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:05:40,038 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:05:40,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:05:40,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:05:40,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:05:40,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:05:40,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:05:40,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:05:40,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:05:40,039 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:05:40,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:05:40,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:05:40,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:05:40,039 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:05:40,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:05:40,039 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:05:40,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:05:40,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:05:40,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:05:40,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:05:40,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:05:40,040 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_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af [2024-12-02 08:05:40,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:05:40,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:05:40,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:05:40,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:05:40,276 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:05:40,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i [2024-12-02 08:05:42,976 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/data/18da2fb2f/d8bbc951dc1d402c9a931a71a0b35fb1/FLAG69900b4fd [2024-12-02 08:05:43,214 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:05:43,214 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i [2024-12-02 08:05:43,223 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/data/18da2fb2f/d8bbc951dc1d402c9a931a71a0b35fb1/FLAG69900b4fd [2024-12-02 08:05:43,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/data/18da2fb2f/d8bbc951dc1d402c9a931a71a0b35fb1 [2024-12-02 08:05:43,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:05:43,244 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:05:43,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:05:43,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:05:43,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:05:43,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264e2412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43, skipping insertion in model container [2024-12-02 08:05:43,252 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:05:43,407 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_d50c986a-c45f-408d-a4ba-43bb8129e189/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-12-02 08:05:43,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:05:43,464 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:05:43,474 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_d50c986a-c45f-408d-a4ba-43bb8129e189/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-12-02 08:05:43,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:05:43,517 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:05:43,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43 WrapperNode [2024-12-02 08:05:43,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:05:43,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:05:43,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:05:43,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:05:43,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,560 INFO L138 Inliner]: procedures = 29, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 459 [2024-12-02 08:05:43,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:05:43,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:05:43,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:05:43,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:05:43,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,592 INFO L175 MemorySlicer]: Split 115 memory accesses to 2 slices as follows [2, 113]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 12 writes are split as follows [0, 12]. [2024-12-02 08:05:43,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,605 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,610 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,612 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:05:43,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:05:43,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:05:43,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:05:43,618 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (1/1) ... [2024-12-02 08:05:43,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:05:43,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:05:43,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:05:43,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:05:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:05:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 08:05:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 08:05:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:05:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:05:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 08:05:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 08:05:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:05:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:05:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 08:05:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 08:05:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:05:43,674 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:05:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:05:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:05:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:05:43,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:05:43,775 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:05:43,776 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:05:44,126 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2024-12-02 08:05:44,126 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:05:44,136 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:05:44,137 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:05:44,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:05:44 BoogieIcfgContainer [2024-12-02 08:05:44,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:05:44,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:05:44,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:05:44,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:05:44,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:05:43" (1/3) ... [2024-12-02 08:05:44,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9a0ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:05:44, skipping insertion in model container [2024-12-02 08:05:44,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:43" (2/3) ... [2024-12-02 08:05:44,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9a0ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:05:44, skipping insertion in model container [2024-12-02 08:05:44,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:05:44" (3/3) ... [2024-12-02 08:05:44,146 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-47.i [2024-12-02 08:05:44,160 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:05:44,162 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-47.i that has 2 procedures, 96 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:05:44,208 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:05:44,228 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;@319da443, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:05:44,228 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:05:44,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 08:05:44,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:05:44,242 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:44,243 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:44,243 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:44,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:44,248 INFO L85 PathProgramCache]: Analyzing trace with hash -766083450, now seen corresponding path program 1 times [2024-12-02 08:05:44,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:44,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845520650] [2024-12-02 08:05:44,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:44,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:44,459 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-12-02 08:05:44,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:44,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845520650] [2024-12-02 08:05:44,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845520650] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:05:44,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576924071] [2024-12-02 08:05:44,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:44,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:05:44,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:05:44,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:05:44,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:05:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:44,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:05:44,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:05:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-12-02 08:05:44,665 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:05:44,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576924071] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:44,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:05:44,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:05:44,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445528180] [2024-12-02 08:05:44,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:44,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:05:44,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:44,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:05:44,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:05:44,691 INFO L87 Difference]: Start difference. First operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 08:05:44,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:44,715 INFO L93 Difference]: Finished difference Result 185 states and 285 transitions. [2024-12-02 08:05:44,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:05:44,717 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2024-12-02 08:05:44,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:44,723 INFO L225 Difference]: With dead ends: 185 [2024-12-02 08:05:44,723 INFO L226 Difference]: Without dead ends: 92 [2024-12-02 08:05:44,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:05:44,729 INFO L435 NwaCegarLoop]: 134 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, 134 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:44,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:44,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-12-02 08:05:44,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-12-02 08:05:44,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 08:05:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 134 transitions. [2024-12-02 08:05:44,760 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 134 transitions. Word has length 84 [2024-12-02 08:05:44,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:44,760 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 134 transitions. [2024-12-02 08:05:44,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 08:05:44,761 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions. [2024-12-02 08:05:44,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:05:44,763 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:44,763 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:44,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:05:44,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:05:44,964 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:44,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:44,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1428001612, now seen corresponding path program 1 times [2024-12-02 08:05:44,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:44,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347859574] [2024-12-02 08:05:44,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:44,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:45,113 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 08:05:45,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:45,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347859574] [2024-12-02 08:05:45,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347859574] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:45,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:45,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:05:45,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540413930] [2024-12-02 08:05:45,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:45,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:05:45,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:45,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:05:45,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:45,116 INFO L87 Difference]: Start difference. First operand 92 states and 134 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:45,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:45,139 INFO L93 Difference]: Finished difference Result 182 states and 267 transitions. [2024-12-02 08:05:45,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:05:45,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-12-02 08:05:45,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:45,141 INFO L225 Difference]: With dead ends: 182 [2024-12-02 08:05:45,141 INFO L226 Difference]: Without dead ends: 93 [2024-12-02 08:05:45,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:45,142 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:45,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:45,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-12-02 08:05:45,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-12-02 08:05:45,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.4268292682926829) internal successors, (117), 82 states have internal predecessors, (117), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 08:05:45,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-12-02 08:05:45,151 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 84 [2024-12-02 08:05:45,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:45,152 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-12-02 08:05:45,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:45,152 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-12-02 08:05:45,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:05:45,153 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:45,153 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:45,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:05:45,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:45,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:45,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1178021942, now seen corresponding path program 1 times [2024-12-02 08:05:45,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:45,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867097004] [2024-12-02 08:05:45,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:45,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:45,421 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-12-02 08:05:45,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:45,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867097004] [2024-12-02 08:05:45,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867097004] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:05:45,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467801805] [2024-12-02 08:05:45,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:45,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:05:45,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:05:45,424 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:05:45,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:05:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:45,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:05:45,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:05:45,635 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 08:05:45,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:05:45,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467801805] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:45,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:05:45,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-12-02 08:05:45,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789380958] [2024-12-02 08:05:45,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:45,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:05:45,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:45,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:05:45,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:05:45,637 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:45,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:45,672 INFO L93 Difference]: Finished difference Result 186 states and 271 transitions. [2024-12-02 08:05:45,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:05:45,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-12-02 08:05:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:45,674 INFO L225 Difference]: With dead ends: 186 [2024-12-02 08:05:45,674 INFO L226 Difference]: Without dead ends: 96 [2024-12-02 08:05:45,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:05:45,676 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:45,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 384 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:45,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-12-02 08:05:45,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-12-02 08:05:45,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 84 states have internal predecessors, (119), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 08:05:45,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions. [2024-12-02 08:05:45,684 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 137 transitions. Word has length 84 [2024-12-02 08:05:45,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:45,684 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 137 transitions. [2024-12-02 08:05:45,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:45,685 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 137 transitions. [2024-12-02 08:05:45,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:05:45,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:45,686 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:45,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:05:45,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:05:45,887 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:45,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1179868984, now seen corresponding path program 1 times [2024-12-02 08:05:45,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:45,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945222661] [2024-12-02 08:05:45,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:45,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-12-02 08:05:46,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:46,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945222661] [2024-12-02 08:05:46,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945222661] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:05:46,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125915477] [2024-12-02 08:05:46,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:46,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:05:46,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:05:46,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:05:46,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:05:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:46,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:05:46,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:05:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 08:05:46,281 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:05:46,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125915477] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:46,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:05:46,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-12-02 08:05:46,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798180459] [2024-12-02 08:05:46,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:46,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:05:46,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:46,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:05:46,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:05:46,283 INFO L87 Difference]: Start difference. First operand 95 states and 137 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:46,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:46,315 INFO L93 Difference]: Finished difference Result 190 states and 275 transitions. [2024-12-02 08:05:46,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:05:46,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-12-02 08:05:46,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:46,317 INFO L225 Difference]: With dead ends: 190 [2024-12-02 08:05:46,317 INFO L226 Difference]: Without dead ends: 98 [2024-12-02 08:05:46,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:05:46,319 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 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 [2024-12-02 08:05:46,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:46,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-12-02 08:05:46,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-12-02 08:05:46,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 87 states have (on average 1.4022988505747127) internal successors, (122), 87 states have internal predecessors, (122), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 08:05:46,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 140 transitions. [2024-12-02 08:05:46,328 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 140 transitions. Word has length 84 [2024-12-02 08:05:46,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:46,328 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 140 transitions. [2024-12-02 08:05:46,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:46,328 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 140 transitions. [2024-12-02 08:05:46,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:05:46,330 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:46,330 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:46,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:05:46,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:05:46,531 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:46,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:46,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1603693142, now seen corresponding path program 1 times [2024-12-02 08:05:46,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:46,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486321569] [2024-12-02 08:05:46,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:46,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:05:46,622 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:05:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:05:46,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 08:05:46,742 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 08:05:46,743 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:05:46,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:05:46,748 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 08:05:46,828 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:05:46,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:05:46 BoogieIcfgContainer [2024-12-02 08:05:46,831 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:05:46,832 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:05:46,832 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:05:46,832 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:05:46,833 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:05:44" (3/4) ... [2024-12-02 08:05:46,835 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 08:05:46,836 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:05:46,837 INFO L158 Benchmark]: Toolchain (without parser) took 3593.07ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 92.5MB in the beginning and 93.4MB in the end (delta: -858.3kB). Peak memory consumption was 109.7MB. Max. memory is 16.1GB. [2024-12-02 08:05:46,837 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:05:46,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.65ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 78.3MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:05:46,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.43ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 75.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:05:46,838 INFO L158 Benchmark]: Boogie Preprocessor took 55.33ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 72.1MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:05:46,838 INFO L158 Benchmark]: RCFGBuilder took 519.86ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 44.2MB in the end (delta: 28.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 08:05:46,838 INFO L158 Benchmark]: TraceAbstraction took 2692.25ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 43.6MB in the beginning and 93.4MB in the end (delta: -49.8MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2024-12-02 08:05:46,839 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 226.5MB. Free memory was 93.4MB in the beginning and 93.4MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:05:46,840 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.65ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 78.3MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.43ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 75.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.33ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 72.1MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 519.86ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 44.2MB in the end (delta: 28.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2692.25ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 43.6MB in the beginning and 93.4MB in the end (delta: -49.8MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 226.5MB. Free memory was 93.4MB in the beginning and 93.4MB in the end (delta: 13.7kB). 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 someBinaryDOUBLEComparisonOperation at line 74, overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someBinaryDOUBLEComparisonOperation at line 104, overapproximation of someBinaryDOUBLEComparisonOperation at line 104. Possible FailurePath: [L33] unsigned char isInitial = 0; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L45] double* WrapperStruct0_var_1_1_Pointer = &(WrapperStruct0.var_1_1); [L46] double* WrapperStruct0_var_1_8_Pointer = &(WrapperStruct0.var_1_8); [L47] signed char* WrapperStruct0_var_1_9_Pointer = &(WrapperStruct0.var_1_9); [L48] signed char* WrapperStruct0_var_1_10_Pointer = &(WrapperStruct0.var_1_10); [L49] signed char* WrapperStruct0_var_1_11_Pointer = &(WrapperStruct0.var_1_11); [L50] signed long int* WrapperStruct0_var_1_12_Pointer = &(WrapperStruct0.var_1_12); [L51] unsigned char* WrapperStruct0_var_1_13_Pointer = &(WrapperStruct0.var_1_13); [L52] unsigned char* WrapperStruct0_var_1_14_Pointer = &(WrapperStruct0.var_1_14); [L53] double* WrapperStruct0_var_1_15_Pointer = &(WrapperStruct0.var_1_15); [L54] signed long int last_1_WrapperStruct0_var_1_12 = 8; VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=0, last_1_WrapperStruct0_var_1_12=8] [L108] isInitial = 1 [L109] FCALL initially() [L111] CALL updateLastVariables() [L101] EXPR WrapperStruct0.var_1_12 [L101] last_1_WrapperStruct0_var_1_12 = WrapperStruct0.var_1_12 [L111] RET updateLastVariables() [L112] CALL updateVariables() [L85] WrapperStruct0.var_1_8 = __VERIFIER_nondet_double() [L86] EXPR WrapperStruct0.var_1_8 [L86] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F [L86] EXPR WrapperStruct0.var_1_8 [L86] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] EXPR (WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] EXPR (WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] CALL assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] RET assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L87] WrapperStruct0.var_1_10 = __VERIFIER_nondet_char() [L88] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L88] CALL assume_abort_if_not(WrapperStruct0.var_1_10 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L88] RET assume_abort_if_not(WrapperStruct0.var_1_10 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] CALL assume_abort_if_not(WrapperStruct0.var_1_10 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] RET assume_abort_if_not(WrapperStruct0.var_1_10 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L90] WrapperStruct0.var_1_11 = __VERIFIER_nondet_char() [L91] EXPR WrapperStruct0.var_1_11 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L91] CALL assume_abort_if_not(WrapperStruct0.var_1_11 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L91] RET assume_abort_if_not(WrapperStruct0.var_1_11 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L92] EXPR WrapperStruct0.var_1_11 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L92] CALL assume_abort_if_not(WrapperStruct0.var_1_11 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L92] RET assume_abort_if_not(WrapperStruct0.var_1_11 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L93] WrapperStruct0.var_1_13 = __VERIFIER_nondet_uchar() [L94] EXPR WrapperStruct0.var_1_13 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L94] CALL assume_abort_if_not(WrapperStruct0.var_1_13 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L94] RET assume_abort_if_not(WrapperStruct0.var_1_13 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L95] EXPR WrapperStruct0.var_1_13 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L95] CALL assume_abort_if_not(WrapperStruct0.var_1_13 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L95] RET assume_abort_if_not(WrapperStruct0.var_1_13 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L96] WrapperStruct0.var_1_14 = __VERIFIER_nondet_uchar() [L97] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L97] CALL assume_abort_if_not(WrapperStruct0.var_1_14 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L97] RET assume_abort_if_not(WrapperStruct0.var_1_14 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L98] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L98] CALL assume_abort_if_not(WrapperStruct0.var_1_14 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L98] RET assume_abort_if_not(WrapperStruct0.var_1_14 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L112] RET updateVariables() [L113] CALL step() [L58] COND FALSE !(-4 > last_1_WrapperStruct0_var_1_12) [L63] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L63] (*(WrapperStruct0_var_1_9_Pointer)) = (*(WrapperStruct0_var_1_10_Pointer)) [L65] EXPR \read(*WrapperStruct0_var_1_13_Pointer) [L65] unsigned char stepLocal_0 = ! (*(WrapperStruct0_var_1_13_Pointer)); [L66] stepLocal_0 || (*(WrapperStruct0_var_1_14_Pointer)) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L66] stepLocal_0 || (*(WrapperStruct0_var_1_14_Pointer)) [L66] EXPR \read(*WrapperStruct0_var_1_14_Pointer) [L66] stepLocal_0 || (*(WrapperStruct0_var_1_14_Pointer)) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L66] COND FALSE !(stepLocal_0 || (*(WrapperStruct0_var_1_14_Pointer))) [L73] EXPR \read(*WrapperStruct0_var_1_8_Pointer) [L73] (*(WrapperStruct0_var_1_15_Pointer)) = (*(WrapperStruct0_var_1_8_Pointer)) [L74] EXPR \read(*WrapperStruct0_var_1_15_Pointer) [L74] EXPR \read(*WrapperStruct0_var_1_15_Pointer) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L74] COND FALSE !((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) [L79] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L79] EXPR \read(*WrapperStruct0_var_1_9_Pointer) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L79] COND TRUE (*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer)) [L80] EXPR \read(*WrapperStruct0_var_1_8_Pointer) [L80] (*(WrapperStruct0_var_1_1_Pointer)) = (*(WrapperStruct0_var_1_8_Pointer)) [L113] RET step() [L114] CALL, EXPR property() [L104] EXPR \read(*WrapperStruct0_var_1_15_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_15_Pointer) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR ((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1) [L104] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_9_Pointer) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR ((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1 [L104] EXPR \read(*WrapperStruct0_var_1_1_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_8_Pointer) [L104] EXPR ((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR ((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR (((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer))))) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR (((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer))))) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR ((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR ((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR (((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_15_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR (((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_15_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104-L105] return (((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_15_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) ; [L114] RET, EXPR property() [L114] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L19] reach_error() VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 1287 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 758 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 529 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 270 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 672 NumberOfCodeBlocks, 672 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 581 ConstructedInterpolants, 0 QuantifiedInterpolants, 615 SizeOfPredicates, 0 NumberOfNonLiveVariables, 971 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 974/1008 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 08:05:46,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:05:48,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:05:48,977 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 08:05:48,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:05:48,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:05:49,006 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:05:49,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:05:49,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:05:49,007 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:05:49,007 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:05:49,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:05:49,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:05:49,008 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:05:49,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:05:49,008 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:05:49,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:05:49,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:05:49,008 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:05:49,008 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:05:49,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:05:49,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:05:49,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:05:49,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:05:49,009 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 08:05:49,009 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 08:05:49,009 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 08:05:49,009 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:05:49,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:05:49,009 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:05:49,009 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:05:49,009 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:05:49,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:05:49,009 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:05:49,009 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:05:49,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:05:49,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:05:49,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:05:49,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:05:49,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:05:49,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:05:49,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:05:49,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:05:49,010 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:05:49,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:05:49,010 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 08:05:49,010 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 08:05:49,010 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:05:49,010 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:05:49,011 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:05:49,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:05:49,011 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_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af [2024-12-02 08:05:49,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:05:49,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:05:49,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:05:49,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:05:49,252 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:05:49,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i [2024-12-02 08:05:51,977 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/data/03bf00dbd/2d1de4329adb4cdca3227e2ed225b082/FLAG45f206626 [2024-12-02 08:05:52,153 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:05:52,154 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i [2024-12-02 08:05:52,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/data/03bf00dbd/2d1de4329adb4cdca3227e2ed225b082/FLAG45f206626 [2024-12-02 08:05:52,171 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/data/03bf00dbd/2d1de4329adb4cdca3227e2ed225b082 [2024-12-02 08:05:52,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:05:52,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:05:52,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:05:52,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:05:52,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:05:52,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6935891c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52, skipping insertion in model container [2024-12-02 08:05:52,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,198 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:05:52,318 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_d50c986a-c45f-408d-a4ba-43bb8129e189/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-12-02 08:05:52,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:05:52,384 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:05:52,393 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_d50c986a-c45f-408d-a4ba-43bb8129e189/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-12-02 08:05:52,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:05:52,445 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:05:52,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52 WrapperNode [2024-12-02 08:05:52,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:05:52,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:05:52,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:05:52,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:05:52,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,499 INFO L138 Inliner]: procedures = 33, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 457 [2024-12-02 08:05:52,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:05:52,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:05:52,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:05:52,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:05:52,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,515 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,533 INFO L175 MemorySlicer]: Split 115 memory accesses to 2 slices as follows [2, 113]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 12 writes are split as follows [0, 12]. [2024-12-02 08:05:52,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,550 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:05:52,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:05:52,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:05:52,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:05:52,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (1/1) ... [2024-12-02 08:05:52,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:05:52,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:05:52,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:05:52,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-12-02 08:05:52,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-12-02 08:05:52,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-12-02 08:05:52,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 08:05:52,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 08:05:52,630 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:05:52,630 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:05:52,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:05:52,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:05:52,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 08:05:52,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 08:05:52,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 08:05:52,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 08:05:52,747 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:05:52,748 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:05:53,347 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-12-02 08:05:53,348 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:05:53,358 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:05:53,358 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:05:53,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:05:53 BoogieIcfgContainer [2024-12-02 08:05:53,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:05:53,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:05:53,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:05:53,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:05:53,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:05:52" (1/3) ... [2024-12-02 08:05:53,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38336536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:05:53, skipping insertion in model container [2024-12-02 08:05:53,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:52" (2/3) ... [2024-12-02 08:05:53,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38336536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:05:53, skipping insertion in model container [2024-12-02 08:05:53,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:05:53" (3/3) ... [2024-12-02 08:05:53,366 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-47.i [2024-12-02 08:05:53,380 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:05:53,381 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-47.i that has 2 procedures, 96 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:05:53,428 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:05:53,439 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;@73acb3fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:05:53,439 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:05:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 08:05:53,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:05:53,450 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:53,451 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:53,451 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:53,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:53,464 INFO L85 PathProgramCache]: Analyzing trace with hash -766083450, now seen corresponding path program 1 times [2024-12-02 08:05:53,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:05:53,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228820720] [2024-12-02 08:05:53,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:53,473 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 [2024-12-02 08:05:53,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:05:53,475 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:05:53,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:05:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:53,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:05:53,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:05:53,769 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-12-02 08:05:53,769 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:05:53,770 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:05:53,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228820720] [2024-12-02 08:05:53,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228820720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:53,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:53,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:05:53,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348709085] [2024-12-02 08:05:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:53,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:05:53,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:05:53,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:05:53,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:05:53,793 INFO L87 Difference]: Start difference. First operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 08:05:53,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:53,816 INFO L93 Difference]: Finished difference Result 185 states and 285 transitions. [2024-12-02 08:05:53,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:05:53,818 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2024-12-02 08:05:53,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:53,824 INFO L225 Difference]: With dead ends: 185 [2024-12-02 08:05:53,824 INFO L226 Difference]: Without dead ends: 92 [2024-12-02 08:05:53,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:05:53,829 INFO L435 NwaCegarLoop]: 134 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, 134 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:53,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-12-02 08:05:53,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-12-02 08:05:53,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 08:05:53,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 134 transitions. [2024-12-02 08:05:53,864 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 134 transitions. Word has length 84 [2024-12-02 08:05:53,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:53,864 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 134 transitions. [2024-12-02 08:05:53,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 08:05:53,864 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions. [2024-12-02 08:05:53,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:05:53,867 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:53,867 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:53,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:05:54,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:05:54,068 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:54,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:54,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1428001612, now seen corresponding path program 1 times [2024-12-02 08:05:54,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:05:54,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687618499] [2024-12-02 08:05:54,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:54,069 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 [2024-12-02 08:05:54,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:05:54,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:05:54,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:05:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:54,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:05:54,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:05:54,372 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 08:05:54,372 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:05:54,372 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:05:54,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687618499] [2024-12-02 08:05:54,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687618499] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:54,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:54,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:05:54,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221934930] [2024-12-02 08:05:54,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:54,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:05:54,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:05:54,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:05:54,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:54,375 INFO L87 Difference]: Start difference. First operand 92 states and 134 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:54,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:54,406 INFO L93 Difference]: Finished difference Result 182 states and 267 transitions. [2024-12-02 08:05:54,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:05:54,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-12-02 08:05:54,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:54,408 INFO L225 Difference]: With dead ends: 182 [2024-12-02 08:05:54,409 INFO L226 Difference]: Without dead ends: 93 [2024-12-02 08:05:54,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:54,410 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:54,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:54,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-12-02 08:05:54,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-12-02 08:05:54,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.4268292682926829) internal successors, (117), 82 states have internal predecessors, (117), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 08:05:54,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-12-02 08:05:54,420 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 84 [2024-12-02 08:05:54,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:54,422 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-12-02 08:05:54,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:54,422 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-12-02 08:05:54,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:05:54,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:54,424 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:54,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:05:54,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:05:54,624 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:54,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:54,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1178021942, now seen corresponding path program 1 times [2024-12-02 08:05:54,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:05:54,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447779206] [2024-12-02 08:05:54,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:54,626 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 [2024-12-02 08:05:54,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:05:54,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:05:54,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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)] Waiting until timeout for monitored process [2024-12-02 08:05:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:54,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:05:54,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:05:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 08:05:54,938 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:05:54,938 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:05:54,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447779206] [2024-12-02 08:05:54,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447779206] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:54,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:54,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:05:54,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726272579] [2024-12-02 08:05:54,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:54,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:05:54,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:05:54,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:05:54,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:05:54,940 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:55,101 INFO L93 Difference]: Finished difference Result 186 states and 271 transitions. [2024-12-02 08:05:55,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:05:55,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-12-02 08:05:55,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:55,103 INFO L225 Difference]: With dead ends: 186 [2024-12-02 08:05:55,103 INFO L226 Difference]: Without dead ends: 96 [2024-12-02 08:05:55,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:05:55,105 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 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 [2024-12-02 08:05:55,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:05:55,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-12-02 08:05:55,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-12-02 08:05:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.411764705882353) internal successors, (120), 85 states have internal predecessors, (120), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 08:05:55,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-12-02 08:05:55,114 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 84 [2024-12-02 08:05:55,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:55,115 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-12-02 08:05:55,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:55,115 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-12-02 08:05:55,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:05:55,117 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:55,117 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:55,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 08:05:55,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:05:55,317 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:55,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:55,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1605540184, now seen corresponding path program 1 times [2024-12-02 08:05:55,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:05:55,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987298752] [2024-12-02 08:05:55,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:55,319 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 [2024-12-02 08:05:55,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:05:55,320 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:05:55,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:05:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:55,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:05:55,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:05:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 08:05:55,612 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:05:55,612 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:05:55,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987298752] [2024-12-02 08:05:55,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987298752] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:55,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:55,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:05:55,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773411919] [2024-12-02 08:05:55,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:55,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:05:55,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:05:55,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:05:55,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:05:55,614 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:56,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:56,252 INFO L93 Difference]: Finished difference Result 194 states and 280 transitions. [2024-12-02 08:05:56,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:05:56,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-12-02 08:05:56,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:56,254 INFO L225 Difference]: With dead ends: 194 [2024-12-02 08:05:56,254 INFO L226 Difference]: Without dead ends: 101 [2024-12-02 08:05:56,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:05:56,256 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 1 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:56,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 503 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:05:56,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-12-02 08:05:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-12-02 08:05:56,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 89 states have internal predecessors, (124), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 08:05:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 142 transitions. [2024-12-02 08:05:56,265 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 142 transitions. Word has length 84 [2024-12-02 08:05:56,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:56,265 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 142 transitions. [2024-12-02 08:05:56,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:05:56,266 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 142 transitions. [2024-12-02 08:05:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:05:56,267 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:56,267 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:05:56,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:05:56,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:05:56,468 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:56,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:56,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1603693142, now seen corresponding path program 1 times [2024-12-02 08:05:56,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:05:56,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993790735] [2024-12-02 08:05:56,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:56,470 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 [2024-12-02 08:05:56,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:05:56,471 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:05:56,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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)] Waiting until timeout for monitored process [2024-12-02 08:05:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:56,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 08:05:56,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:05:57,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-12-02 08:05:57,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 55 [2024-12-02 08:05:58,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 63 [2024-12-02 08:05:59,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 74 [2024-12-02 08:05:59,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 85 [2024-12-02 08:06:00,617 INFO L349 Elim1Store]: treesize reduction 79, result has 16.0 percent of original size [2024-12-02 08:06:00,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 130 treesize of output 112 [2024-12-02 08:06:00,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:06:00,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 167 treesize of output 79 [2024-12-02 08:06:00,996 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 64 proven. 56 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 08:06:00,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:06:01,435 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:06:01,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993790735] [2024-12-02 08:06:01,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993790735] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:06:01,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [227823442] [2024-12-02 08:06:01,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:01,436 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:06:01,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:06:01,448 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:06:01,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-02 08:06:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:03,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 08:06:03,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:06:03,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 08:06:04,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 71 [2024-12-02 08:06:05,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 82 [2024-12-02 08:06:06,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2024-12-02 08:06:07,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 110 [2024-12-02 08:06:08,063 INFO L349 Elim1Store]: treesize reduction 91, result has 14.2 percent of original size [2024-12-02 08:06:08,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 136 treesize of output 137 [2024-12-02 08:06:08,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 51 [2024-12-02 08:06:12,670 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 56 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 08:06:12,670 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:06:12,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [227823442] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:06:12,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:06:12,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2024-12-02 08:06:12,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961978296] [2024-12-02 08:06:12,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:06:12,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 08:06:12,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:06:12,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 08:06:12,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=544, Unknown=1, NotChecked=0, Total=650 [2024-12-02 08:06:12,863 INFO L87 Difference]: Start difference. First operand 100 states and 142 transitions. Second operand has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 22 states have internal predecessors, (90), 9 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-12-02 08:06:20,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:20,765 INFO L93 Difference]: Finished difference Result 370 states and 516 transitions. [2024-12-02 08:06:20,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:06:20,766 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 22 states have internal predecessors, (90), 9 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) Word has length 84 [2024-12-02 08:06:20,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:20,767 INFO L225 Difference]: With dead ends: 370 [2024-12-02 08:06:20,767 INFO L226 Difference]: Without dead ends: 273 [2024-12-02 08:06:20,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=271, Invalid=1060, Unknown=1, NotChecked=0, Total=1332 [2024-12-02 08:06:20,768 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 1361 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:20,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 822 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-12-02 08:06:20,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-12-02 08:06:20,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 150. [2024-12-02 08:06:20,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 125 states have (on average 1.328) internal successors, (166), 125 states have internal predecessors, (166), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:06:20,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 202 transitions. [2024-12-02 08:06:20,784 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 202 transitions. Word has length 84 [2024-12-02 08:06:20,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:20,784 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 202 transitions. [2024-12-02 08:06:20,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 22 states have internal predecessors, (90), 9 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-12-02 08:06:20,784 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 202 transitions. [2024-12-02 08:06:20,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:06:20,785 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:20,786 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:06:20,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-12-02 08:06:20,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 08:06:21,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:06:21,186 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:21,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:21,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1303975955, now seen corresponding path program 1 times [2024-12-02 08:06:21,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:06:21,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235449794] [2024-12-02 08:06:21,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:21,187 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 [2024-12-02 08:06:21,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:06:21,189 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:06:21,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:06:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:21,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:06:21,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:06:21,527 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:06:21,527 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 136 treesize of output 46 [2024-12-02 08:06:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 08:06:21,631 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:06:21,631 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:06:21,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235449794] [2024-12-02 08:06:21,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235449794] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:06:21,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:06:21,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:06:21,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770153012] [2024-12-02 08:06:21,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:06:21,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:06:21,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:06:21,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:06:21,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:06:21,633 INFO L87 Difference]: Start difference. First operand 150 states and 202 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:06:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:25,128 INFO L93 Difference]: Finished difference Result 342 states and 462 transitions. [2024-12-02 08:06:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:06:25,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-12-02 08:06:25,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:25,130 INFO L225 Difference]: With dead ends: 342 [2024-12-02 08:06:25,130 INFO L226 Difference]: Without dead ends: 195 [2024-12-02 08:06:25,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:06:25,131 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 57 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:25,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 366 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 08:06:25,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-12-02 08:06:25,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 152. [2024-12-02 08:06:25,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 127 states have (on average 1.3228346456692914) internal successors, (168), 127 states have internal predecessors, (168), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:06:25,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 204 transitions. [2024-12-02 08:06:25,153 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 204 transitions. Word has length 84 [2024-12-02 08:06:25,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:25,153 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 204 transitions. [2024-12-02 08:06:25,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:06:25,153 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 204 transitions. [2024-12-02 08:06:25,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:06:25,154 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:25,155 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:06:25,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:06:25,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:06:25,355 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:25,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:25,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1363453396, now seen corresponding path program 1 times [2024-12-02 08:06:25,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:06:25,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236080168] [2024-12-02 08:06:25,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:25,356 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 [2024-12-02 08:06:25,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:06:25,358 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:06:25,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:06:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:25,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:06:25,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:06:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 08:06:25,543 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:06:25,543 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:06:25,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236080168] [2024-12-02 08:06:25,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236080168] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:06:25,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:06:25,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:06:25,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348745665] [2024-12-02 08:06:25,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:06:25,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:06:25,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:06:25,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:06:25,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:06:25,544 INFO L87 Difference]: Start difference. First operand 152 states and 204 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:06:25,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:25,602 INFO L93 Difference]: Finished difference Result 301 states and 405 transitions. [2024-12-02 08:06:25,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:06:25,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-12-02 08:06:25,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:25,604 INFO L225 Difference]: With dead ends: 301 [2024-12-02 08:06:25,604 INFO L226 Difference]: Without dead ends: 152 [2024-12-02 08:06:25,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:06:25,604 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:25,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:06:25,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-12-02 08:06:25,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-12-02 08:06:25,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 127 states have (on average 1.31496062992126) internal successors, (167), 127 states have internal predecessors, (167), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:06:25,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 203 transitions. [2024-12-02 08:06:25,619 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 203 transitions. Word has length 84 [2024-12-02 08:06:25,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:25,619 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 203 transitions. [2024-12-02 08:06:25,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:06:25,619 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 203 transitions. [2024-12-02 08:06:25,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 08:06:25,620 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:25,620 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:06:25,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:06:25,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:06:25,820 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:25,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:25,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1802536291, now seen corresponding path program 1 times [2024-12-02 08:06:25,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:06:25,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658227212] [2024-12-02 08:06:25,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:25,821 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 [2024-12-02 08:06:25,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:06:25,823 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:06:25,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 (10)] Waiting until timeout for monitored process [2024-12-02 08:06:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:26,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:06:26,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:06:26,312 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 8 treesize of output 1 [2024-12-02 08:06:27,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 55 [2024-12-02 08:06:27,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 55 [2024-12-02 08:06:28,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 55 [2024-12-02 08:06:28,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 63 [2024-12-02 08:06:29,731 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-12-02 08:06:29,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 114 treesize of output 90 [2024-12-02 08:06:29,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 78 [2024-12-02 08:06:30,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:06:30,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 71 [2024-12-02 08:06:30,211 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 08:06:30,211 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:06:30,817 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:06:30,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658227212] [2024-12-02 08:06:30,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658227212] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:06:30,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [371756532] [2024-12-02 08:06:30,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:30,817 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:06:30,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:06:30,819 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:06:30,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-12-02 08:06:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:32,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 08:06:32,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:06:33,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-12-02 08:06:34,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 63 [2024-12-02 08:06:35,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2024-12-02 08:06:36,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2024-12-02 08:06:37,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2024-12-02 08:06:39,006 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-12-02 08:06:39,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 114 treesize of output 90 [2024-12-02 08:06:39,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 78 [2024-12-02 08:06:39,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 115 [2024-12-02 08:06:40,026 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 24 proven. 56 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-12-02 08:06:40,026 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:06:41,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [371756532] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:06:41,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:06:41,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2024-12-02 08:06:41,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526149232] [2024-12-02 08:06:41,529 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:06:41,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 08:06:41,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:06:41,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 08:06:41,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:06:41,530 INFO L87 Difference]: Start difference. First operand 152 states and 203 transitions. Second operand has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 20 states have internal predecessors, (80), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 08:06:48,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:48,423 INFO L93 Difference]: Finished difference Result 432 states and 586 transitions. [2024-12-02 08:06:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:06:48,424 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 20 states have internal predecessors, (80), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 85 [2024-12-02 08:06:48,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:48,425 INFO L225 Difference]: With dead ends: 432 [2024-12-02 08:06:48,425 INFO L226 Difference]: Without dead ends: 283 [2024-12-02 08:06:48,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=244, Invalid=1162, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 08:06:48,426 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 1020 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:48,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 701 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-12-02 08:06:48,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-12-02 08:06:48,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 161. [2024-12-02 08:06:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 136 states have (on average 1.3308823529411764) internal successors, (181), 136 states have internal predecessors, (181), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:06:48,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 217 transitions. [2024-12-02 08:06:48,451 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 217 transitions. Word has length 85 [2024-12-02 08:06:48,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:48,451 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 217 transitions. [2024-12-02 08:06:48,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 20 states have internal predecessors, (80), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 08:06:48,451 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 217 transitions. [2024-12-02 08:06:48,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 08:06:48,453 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:48,453 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:06:48,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 (10)] Ended with exit code 0 [2024-12-02 08:06:48,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-12-02 08:06:48,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:06:48,853 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:48,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:48,854 INFO L85 PathProgramCache]: Analyzing trace with hash -760820634, now seen corresponding path program 1 times [2024-12-02 08:06:48,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:06:48,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463548139] [2024-12-02 08:06:48,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:48,854 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 [2024-12-02 08:06:48,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:06:48,856 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:06:48,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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)] Waiting until timeout for monitored process [2024-12-02 08:06:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:49,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:06:49,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:06:49,147 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:06:49,148 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 52 treesize of output 36 [2024-12-02 08:06:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 08:06:49,194 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:06:49,194 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:06:49,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463548139] [2024-12-02 08:06:49,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463548139] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:06:49,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:06:49,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:06:49,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677920772] [2024-12-02 08:06:49,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:06:49,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:06:49,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:06:49,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:06:49,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:06:49,195 INFO L87 Difference]: Start difference. First operand 161 states and 217 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:06:49,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:49,820 INFO L93 Difference]: Finished difference Result 355 states and 480 transitions. [2024-12-02 08:06:49,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:06:49,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2024-12-02 08:06:49,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:49,823 INFO L225 Difference]: With dead ends: 355 [2024-12-02 08:06:49,823 INFO L226 Difference]: Without dead ends: 197 [2024-12-02 08:06:49,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:06:49,823 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 48 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:49,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 345 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:06:49,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-12-02 08:06:49,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 162. [2024-12-02 08:06:49,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 137 states have internal predecessors, (182), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 08:06:49,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 218 transitions. [2024-12-02 08:06:49,856 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 218 transitions. Word has length 86 [2024-12-02 08:06:49,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:49,856 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 218 transitions. [2024-12-02 08:06:49,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:06:49,856 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 218 transitions. [2024-12-02 08:06:49,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 08:06:49,857 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:49,857 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:06:49,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 08:06:50,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:06:50,058 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:50,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:50,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1522767668, now seen corresponding path program 1 times [2024-12-02 08:06:50,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:06:50,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096070367] [2024-12-02 08:06:50,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:50,059 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 [2024-12-02 08:06:50,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:06:50,060 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:06:50,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:06:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:50,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 08:06:50,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:06:50,624 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 12 treesize of output 8 [2024-12-02 08:06:51,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2024-12-02 08:06:51,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2024-12-02 08:06:52,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2024-12-02 08:06:52,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-12-02 08:06:53,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2024-12-02 08:06:53,364 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:06:53,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 35 [2024-12-02 08:06:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 36 proven. 80 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 08:06:53,448 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:06:54,150 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:06:54,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096070367] [2024-12-02 08:06:54,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1096070367] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:06:54,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [522880249] [2024-12-02 08:06:54,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:54,151 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:06:54,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:06:54,152 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:06:54,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-12-02 08:06:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:55,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-12-02 08:06:55,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:06:55,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2024-12-02 08:06:58,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2024-12-02 08:07:00,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 51 [2024-12-02 08:07:01,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 62 [2024-12-02 08:07:03,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 63 [2024-12-02 08:07:04,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 75 [2024-12-02 08:07:04,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 86 [2024-12-02 08:07:11,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 65 [2024-12-02 08:07:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 52 proven. 80 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 08:07:11,226 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:07:20,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [522880249] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:07:20,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:07:20,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 25] total 38 [2024-12-02 08:07:20,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323546762] [2024-12-02 08:07:20,977 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:07:20,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-12-02 08:07:20,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:07:20,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-12-02 08:07:20,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=1921, Unknown=4, NotChecked=0, Total=2256 [2024-12-02 08:07:20,979 INFO L87 Difference]: Start difference. First operand 162 states and 218 transitions. Second operand has 39 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 33 states have internal predecessors, (106), 11 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18) [2024-12-02 08:07:30,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:07:38,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:07:42,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:07:46,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:07:51,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:07:55,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:07:59,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:08:08,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:08:12,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:08:17,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:08:21,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:08:25,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:08:29,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:08:33,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:08:37,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:08:41,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:08:45,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:08:56,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:08:56,822 INFO L93 Difference]: Finished difference Result 941 states and 1244 transitions. [2024-12-02 08:08:56,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-12-02 08:08:56,823 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 33 states have internal predecessors, (106), 11 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18) Word has length 86 [2024-12-02 08:08:56,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:08:56,827 INFO L225 Difference]: With dead ends: 941 [2024-12-02 08:08:56,827 INFO L226 Difference]: Without dead ends: 782 [2024-12-02 08:08:56,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 174 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2023 ImplicationChecksByTransitivity, 36.4s TimeCoverageRelationStatistics Valid=1325, Invalid=5979, Unknown=6, NotChecked=0, Total=7310 [2024-12-02 08:08:56,829 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 1921 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 151 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:08:56,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 1540 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 2093 Invalid, 17 Unknown, 0 Unchecked, 80.3s Time] [2024-12-02 08:08:56,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-12-02 08:08:56,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 606. [2024-12-02 08:08:56,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 544 states have (on average 1.349264705882353) internal successors, (734), 547 states have internal predecessors, (734), 39 states have call successors, (39), 22 states have call predecessors, (39), 22 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 08:08:56,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 812 transitions. [2024-12-02 08:08:56,898 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 812 transitions. Word has length 86 [2024-12-02 08:08:56,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:08:56,898 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 812 transitions. [2024-12-02 08:08:56,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 33 states have internal predecessors, (106), 11 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18) [2024-12-02 08:08:56,898 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 812 transitions. [2024-12-02 08:08:56,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 08:08:56,899 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:08:56,899 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:08:56,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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)] Forceful destruction successful, exit code 0 [2024-12-02 08:08:57,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-12-02 08:08:57,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:08:57,300 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:08:57,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:08:57,301 INFO L85 PathProgramCache]: Analyzing trace with hash 652838670, now seen corresponding path program 1 times [2024-12-02 08:08:57,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:08:57,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101503254] [2024-12-02 08:08:57,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:08:57,301 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 [2024-12-02 08:08:57,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:08:57,304 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:08:57,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:08:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:08:57,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 08:08:57,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:08:58,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 44 [2024-12-02 08:08:59,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:08:59,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 94 [2024-12-02 08:09:03,502 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:09:03,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 220 treesize of output 92 [2024-12-02 08:09:03,701 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 08:09:03,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:09:03,701 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:09:03,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101503254] [2024-12-02 08:09:03,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101503254] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:09:03,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:09:03,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:09:03,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383143037] [2024-12-02 08:09:03,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:09:03,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:09:03,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:09:03,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:09:03,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=54, Unknown=1, NotChecked=0, Total=72 [2024-12-02 08:09:03,703 INFO L87 Difference]: Start difference. First operand 606 states and 812 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:09:10,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:09:17,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:09:26,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:09:26,249 INFO L93 Difference]: Finished difference Result 1176 states and 1585 transitions. [2024-12-02 08:09:26,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:09:26,250 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2024-12-02 08:09:26,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:09:26,254 INFO L225 Difference]: With dead ends: 1176 [2024-12-02 08:09:26,254 INFO L226 Difference]: Without dead ends: 841 [2024-12-02 08:09:26,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=43, Invalid=110, Unknown=3, NotChecked=0, Total=156 [2024-12-02 08:09:26,255 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 252 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:09:26,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 553 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 585 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2024-12-02 08:09:26,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-12-02 08:09:26,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 609. [2024-12-02 08:09:26,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 547 states have (on average 1.3473491773308959) internal successors, (737), 550 states have internal predecessors, (737), 39 states have call successors, (39), 22 states have call predecessors, (39), 22 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 08:09:26,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 815 transitions. [2024-12-02 08:09:26,330 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 815 transitions. Word has length 86 [2024-12-02 08:09:26,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:09:26,330 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 815 transitions. [2024-12-02 08:09:26,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:09:26,330 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 815 transitions. [2024-12-02 08:09:26,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 08:09:26,331 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:09:26,331 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:09:26,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:09:26,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:09:26,532 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:09:26,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:09:26,532 INFO L85 PathProgramCache]: Analyzing trace with hash -368229684, now seen corresponding path program 1 times [2024-12-02 08:09:26,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:09:26,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156506773] [2024-12-02 08:09:26,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:09:26,533 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 [2024-12-02 08:09:26,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:09:26,534 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:09:26,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:09:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:09:26,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 08:09:26,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:09:27,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 08:09:28,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 63 [2024-12-02 08:09:29,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 63 [2024-12-02 08:09:31,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 63 [2024-12-02 08:09:32,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 71 [2024-12-02 08:09:33,529 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-12-02 08:09:33,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 112 treesize of output 104 [2024-12-02 08:09:33,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:09:33,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 62 [2024-12-02 08:09:38,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:09:38,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 41 [2024-12-02 08:09:38,452 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 08:09:38,452 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:09:44,557 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:09:44,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156506773] [2024-12-02 08:09:44,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156506773] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:09:44,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1714222712] [2024-12-02 08:09:44,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:09:44,558 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:09:44,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:09:44,559 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:09:44,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-12-02 08:09:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:09:46,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 08:09:46,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:09:47,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2024-12-02 08:10:06,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 67 [2024-12-02 08:10:12,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 84 [2024-12-02 08:10:18,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 95 [2024-12-02 08:10:24,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 106 [2024-12-02 08:10:31,196 INFO L349 Elim1Store]: treesize reduction 91, result has 14.2 percent of original size [2024-12-02 08:10:31,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 128 treesize of output 133 [2024-12-02 08:10:40,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 129 [2024-12-02 08:10:48,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 91 [2024-12-02 08:10:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 56 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 08:10:53,216 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:53,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1714222712] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:53,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:10:53,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 22 [2024-12-02 08:10:53,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154981301] [2024-12-02 08:10:53,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:53,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 08:10:53,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:10:53,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 08:10:53,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=580, Unknown=15, NotChecked=0, Total=702 [2024-12-02 08:10:53,671 INFO L87 Difference]: Start difference. First operand 609 states and 815 transitions. Second operand has 23 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 08:11:59,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:03,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:16,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:20,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:24,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:28,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:32,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:36,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:40,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:44,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:48,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:52,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:57,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:01,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:05,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:09,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:19,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:23,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:27,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:31,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:35,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:39,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:43,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:47,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:53,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:13:57,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:01,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:05,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:09,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:13,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:17,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:21,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:27,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:31,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:35,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:39,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:14:47,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:47,427 INFO L93 Difference]: Finished difference Result 1215 states and 1636 transitions. [2024-12-02 08:14:47,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 08:14:47,428 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 86 [2024-12-02 08:14:47,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:47,431 INFO L225 Difference]: With dead ends: 1215 [2024-12-02 08:14:47,431 INFO L226 Difference]: Without dead ends: 877 [2024-12-02 08:14:47,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 193 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 140.1s TimeCoverageRelationStatistics Valid=300, Invalid=1229, Unknown=31, NotChecked=0, Total=1560 [2024-12-02 08:14:47,432 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 1018 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 43 mSolverCounterUnsat, 36 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 161.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 36 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:47,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 1190 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1555 Invalid, 36 Unknown, 0 Unchecked, 162.5s Time] [2024-12-02 08:14:47,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-12-02 08:14:47,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 618. [2024-12-02 08:14:47,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 556 states have (on average 1.3489208633093526) internal successors, (750), 559 states have internal predecessors, (750), 39 states have call successors, (39), 22 states have call predecessors, (39), 22 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 08:14:47,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 828 transitions. [2024-12-02 08:14:47,539 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 828 transitions. Word has length 86 [2024-12-02 08:14:47,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:47,540 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 828 transitions. [2024-12-02 08:14:47,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 08:14:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 828 transitions. [2024-12-02 08:14:47,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 08:14:47,541 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:47,541 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:47,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-12-02 08:14:47,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:14:47,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:14:47,942 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:47,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:47,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1963105168, now seen corresponding path program 1 times [2024-12-02 08:14:47,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:14:47,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578396291] [2024-12-02 08:14:47,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:47,943 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 [2024-12-02 08:14:47,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:14:47,944 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:14:47,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:14:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:48,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 08:14:48,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:14:48,629 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 8 treesize of output 1 [2024-12-02 08:14:50,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 53 [2024-12-02 08:14:51,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 53 [2024-12-02 08:14:52,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 61 [2024-12-02 08:14:53,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 64 [2024-12-02 08:14:55,053 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-12-02 08:14:55,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 112 treesize of output 88 [2024-12-02 08:14:55,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:55,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 149 treesize of output 69 [2024-12-02 08:14:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 38 proven. 74 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 08:14:55,716 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:14:56,513 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:14:56,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578396291] [2024-12-02 08:14:56,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578396291] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:14:56,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [939547704] [2024-12-02 08:14:56,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:56,514 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:14:56,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:14:56,516 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:14:56,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-12-02 08:14:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:58,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 08:14:58,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:15:02,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 53 [2024-12-02 08:15:03,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 53 [2024-12-02 08:15:04,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 61 [2024-12-02 08:15:06,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 64 [2024-12-02 08:15:08,255 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-12-02 08:15:08,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 112 treesize of output 88 [2024-12-02 08:15:08,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 69 [2024-12-02 08:15:09,347 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 38 proven. 74 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 08:15:09,347 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:15:10,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [939547704] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:15:10,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:15:10,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-12-02 08:15:10,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309870647] [2024-12-02 08:15:10,021 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:15:10,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 08:15:10,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:15:10,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 08:15:10,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=780, Unknown=0, NotChecked=0, Total=930 [2024-12-02 08:15:10,023 INFO L87 Difference]: Start difference. First operand 618 states and 828 transitions. Second operand has 26 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 23 states have internal predecessors, (91), 8 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) [2024-12-02 08:15:23,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:23,668 INFO L93 Difference]: Finished difference Result 1664 states and 2225 transitions. [2024-12-02 08:15:23,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 08:15:23,669 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 23 states have internal predecessors, (91), 8 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) Word has length 86 [2024-12-02 08:15:23,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:23,673 INFO L225 Difference]: With dead ends: 1664 [2024-12-02 08:15:23,673 INFO L226 Difference]: Without dead ends: 1049 [2024-12-02 08:15:23,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=428, Invalid=1734, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 08:15:23,675 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 423 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 26 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:23,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 925 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1420 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2024-12-02 08:15:23,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2024-12-02 08:15:23,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 726. [2024-12-02 08:15:23,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 635 states have (on average 1.3275590551181102) internal successors, (843), 638 states have internal predecessors, (843), 57 states have call successors, (57), 33 states have call predecessors, (57), 33 states have return successors, (57), 54 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 08:15:23,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 957 transitions. [2024-12-02 08:15:23,788 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 957 transitions. Word has length 86 [2024-12-02 08:15:23,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:23,788 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 957 transitions. [2024-12-02 08:15:23,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 23 states have internal predecessors, (91), 8 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) [2024-12-02 08:15:23,788 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 957 transitions. [2024-12-02 08:15:23,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 08:15:23,789 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:23,789 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:23,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:15:23,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-12-02 08:15:24,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:15:24,190 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:24,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:24,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1124071506, now seen corresponding path program 1 times [2024-12-02 08:15:24,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:15:24,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014656678] [2024-12-02 08:15:24,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:24,191 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 [2024-12-02 08:15:24,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:15:24,193 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:15:24,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:15:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:24,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:15:24,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:15:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 08:15:24,541 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:15:24,541 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:15:24,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014656678] [2024-12-02 08:15:24,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014656678] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:24,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:24,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:15:24,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972258310] [2024-12-02 08:15:24,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:24,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:15:24,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:15:24,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:15:24,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:15:24,542 INFO L87 Difference]: Start difference. First operand 726 states and 957 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 08:15:25,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:25,002 INFO L93 Difference]: Finished difference Result 1357 states and 1780 transitions. [2024-12-02 08:15:25,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:15:25,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2024-12-02 08:15:25,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:25,004 INFO L225 Difference]: With dead ends: 1357 [2024-12-02 08:15:25,004 INFO L226 Difference]: Without dead ends: 604 [2024-12-02 08:15:25,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:15:25,006 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 1 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:25,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 588 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:15:25,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-12-02 08:15:25,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 417. [2024-12-02 08:15:25,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 357 states have (on average 1.2941176470588236) internal successors, (462), 357 states have internal predecessors, (462), 36 states have call successors, (36), 23 states have call predecessors, (36), 23 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 08:15:25,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 534 transitions. [2024-12-02 08:15:25,132 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 534 transitions. Word has length 86 [2024-12-02 08:15:25,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:25,132 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 534 transitions. [2024-12-02 08:15:25,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 08:15:25,133 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 534 transitions. [2024-12-02 08:15:25,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 08:15:25,134 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:25,134 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:25,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:15:25,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:15:25,335 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:25,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:25,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1817032447, now seen corresponding path program 1 times [2024-12-02 08:15:25,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:15:25,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989338634] [2024-12-02 08:15:25,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:25,336 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 [2024-12-02 08:15:25,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:15:25,338 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:15:25,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:15:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:25,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:15:25,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:15:26,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 08:15:28,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 71 [2024-12-02 08:15:30,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 80 [2024-12-02 08:15:32,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 88 [2024-12-02 08:15:35,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2024-12-02 08:15:37,841 INFO L349 Elim1Store]: treesize reduction 79, result has 16.0 percent of original size [2024-12-02 08:15:37,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 126 [2024-12-02 08:15:38,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 68 [2024-12-02 08:15:39,182 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:15:39,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 76 [2024-12-02 08:15:47,789 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:15:47,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 97 treesize of output 45 [2024-12-02 08:15:48,027 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 56 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 08:15:48,027 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:06,164 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:16:06,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989338634] [2024-12-02 08:16:06,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989338634] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:06,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1993430159] [2024-12-02 08:16:06,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:06,165 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:16:06,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:16:06,167 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:16:06,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-12-02 08:16:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:08,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:16:08,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:08,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-12-02 08:16:28,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 55 [2024-12-02 08:16:30,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 55 [2024-12-02 08:16:32,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 63 [2024-12-02 08:16:38,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2024-12-02 08:16:41,059 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-12-02 08:16:41,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 114 treesize of output 90 [2024-12-02 08:16:41,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 78 [2024-12-02 08:16:42,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 94 [2024-12-02 08:16:51,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 73 [2024-12-02 08:16:55,536 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 08:16:55,537 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:56,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1993430159] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:56,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:16:56,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2024-12-02 08:16:56,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059655306] [2024-12-02 08:16:56,590 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:16:56,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 08:16:56,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:16:56,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 08:16:56,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=729, Unknown=14, NotChecked=0, Total=870 [2024-12-02 08:16:56,591 INFO L87 Difference]: Start difference. First operand 417 states and 534 transitions. Second operand has 25 states, 25 states have (on average 3.6) internal successors, (90), 24 states have internal predecessors, (90), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 08:17:30,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:34,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:47,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:51,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:55,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:59,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:03,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:07,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:11,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:15,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:19,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:23,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:27,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:31,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:36,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:40,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:44,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:48,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:18:57,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:01,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:05,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:09,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:14,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:18,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:22,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:26,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:31,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:35,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:39,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:43,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:47,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:51,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:55,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:59,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:20:04,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:20:08,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:20:12,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:20:16,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:20:21,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:20:25,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:20:33,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:20:33,546 INFO L93 Difference]: Finished difference Result 845 states and 1097 transitions. [2024-12-02 08:20:33,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:20:33,547 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.6) internal successors, (90), 24 states have internal predecessors, (90), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 87 [2024-12-02 08:20:33,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:20:33,550 INFO L225 Difference]: With dead ends: 845 [2024-12-02 08:20:33,550 INFO L226 Difference]: Without dead ends: 620 [2024-12-02 08:20:33,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 195 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 104.8s TimeCoverageRelationStatistics Valid=317, Invalid=1383, Unknown=22, NotChecked=0, Total=1722 [2024-12-02 08:20:33,552 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 1155 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 71 mSolverCounterUnsat, 40 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 177.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 40 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 178.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:20:33,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 1096 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1710 Invalid, 40 Unknown, 0 Unchecked, 178.5s Time] [2024-12-02 08:20:33,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-12-02 08:20:33,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 417. [2024-12-02 08:20:33,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 357 states have (on average 1.2941176470588236) internal successors, (462), 357 states have internal predecessors, (462), 36 states have call successors, (36), 23 states have call predecessors, (36), 23 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 08:20:33,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 534 transitions. [2024-12-02 08:20:33,654 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 534 transitions. Word has length 87 [2024-12-02 08:20:33,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:20:33,654 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 534 transitions. [2024-12-02 08:20:33,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.6) internal successors, (90), 24 states have internal predecessors, (90), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 08:20:33,654 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 534 transitions. [2024-12-02 08:20:33,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 08:20:33,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:20:33,655 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:20:33,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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)] Forceful destruction successful, exit code 0 [2024-12-02 08:20:33,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-12-02 08:20:34,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:20:34,056 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:20:34,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:20:34,056 INFO L85 PathProgramCache]: Analyzing trace with hash -513934107, now seen corresponding path program 1 times [2024-12-02 08:20:34,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:20:34,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311709769] [2024-12-02 08:20:34,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:20:34,057 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 [2024-12-02 08:20:34,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:20:34,059 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:20:34,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:20:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:20:34,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:20:34,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:20:34,736 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 08:20:34,736 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:20:34,736 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:20:34,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311709769] [2024-12-02 08:20:34,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311709769] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:20:34,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:20:34,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:20:34,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312655299] [2024-12-02 08:20:34,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:20:34,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:20:34,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:20:34,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:20:34,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:20:34,738 INFO L87 Difference]: Start difference. First operand 417 states and 534 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:20:35,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:20:35,527 INFO L93 Difference]: Finished difference Result 1062 states and 1358 transitions. [2024-12-02 08:20:35,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:20:35,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 87 [2024-12-02 08:20:35,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:20:35,531 INFO L225 Difference]: With dead ends: 1062 [2024-12-02 08:20:35,531 INFO L226 Difference]: Without dead ends: 648 [2024-12-02 08:20:35,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:20:35,533 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 100 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:20:35,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 304 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:20:35,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-12-02 08:20:35,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 595. [2024-12-02 08:20:35,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 505 states have (on average 1.2732673267326733) internal successors, (643), 505 states have internal predecessors, (643), 54 states have call successors, (54), 35 states have call predecessors, (54), 35 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 08:20:35,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 751 transitions. [2024-12-02 08:20:35,688 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 751 transitions. Word has length 87 [2024-12-02 08:20:35,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:20:35,688 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 751 transitions. [2024-12-02 08:20:35,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 08:20:35,688 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 751 transitions. [2024-12-02 08:20:35,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 08:20:35,689 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:20:35,689 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:20:35,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 08:20:35,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:20:35,890 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:20:35,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:20:35,890 INFO L85 PathProgramCache]: Analyzing trace with hash -59407209, now seen corresponding path program 1 times [2024-12-02 08:20:35,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:20:35,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222116787] [2024-12-02 08:20:35,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:20:35,891 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 [2024-12-02 08:20:35,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:20:35,893 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 08:20:35,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 08:20:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:20:36,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 08:20:36,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:20:36,724 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 8 treesize of output 1 [2024-12-02 08:20:39,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 61 [2024-12-02 08:20:40,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 64 [2024-12-02 08:20:42,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 64 [2024-12-02 08:20:43,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 64 [2024-12-02 08:20:45,529 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-12-02 08:20:45,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 112 treesize of output 88 [2024-12-02 08:20:46,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 76 [2024-12-02 08:20:46,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:20:46,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 149 treesize of output 69 [2024-12-02 08:20:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 74 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-12-02 08:20:46,591 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:20:47,895 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:20:47,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222116787] [2024-12-02 08:20:47,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222116787] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:20:47,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1335531366] [2024-12-02 08:20:47,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:20:47,895 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:20:47,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:20:47,897 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:20:47,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50c986a-c45f-408d-a4ba-43bb8129e189/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process