./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.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_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/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_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/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_78741246-cc95-4819-9616-03393e1ac752/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 84717a5c2896f013826b4f3140ab30111b65bd200eaa9dc30a2a86e9a93af713 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:14:18,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:14:18,297 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:14:18,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:14:18,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:14:18,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:14:18,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:14:18,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:14:18,326 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:14:18,326 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:14:18,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:14:18,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:14:18,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:14:18,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:14:18,327 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:14:18,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:14:18,327 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:14:18,327 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:14:18,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:14:18,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:14:18,328 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:14:18,328 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:14:18,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:14:18,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:14:18,328 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:14:18,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:14:18,328 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:14:18,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:14:18,328 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:14:18,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:14:18,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:14:18,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:14:18,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:14:18,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:14:18,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:14:18,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:14:18,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:14:18,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:14:18,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:14:18,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:14:18,330 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:14:18,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:14:18,330 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:14:18,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:14:18,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:14:18,330 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:14:18,330 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:14:18,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:14:18,331 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_78741246-cc95-4819-9616-03393e1ac752/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 -> 84717a5c2896f013826b4f3140ab30111b65bd200eaa9dc30a2a86e9a93af713 [2024-12-02 11:14:18,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:14:18,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:14:18,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:14:18,596 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:14:18,597 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:14:18,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i [2024-12-02 11:14:21,401 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/data/0378141e0/e121cfe8ef964d488068aa9f689b44ca/FLAG0085d4741 [2024-12-02 11:14:21,612 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:14:21,612 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i [2024-12-02 11:14:21,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/data/0378141e0/e121cfe8ef964d488068aa9f689b44ca/FLAG0085d4741 [2024-12-02 11:14:21,638 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/data/0378141e0/e121cfe8ef964d488068aa9f689b44ca [2024-12-02 11:14:21,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:14:21,642 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:14:21,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:14:21,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:14:21,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:14:21,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:21,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373cc04d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21, skipping insertion in model container [2024-12-02 11:14:21,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:21,669 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:14:21,807 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_78741246-cc95-4819-9616-03393e1ac752/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i[916,929] [2024-12-02 11:14:21,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:14:21,868 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:14:21,878 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_78741246-cc95-4819-9616-03393e1ac752/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i[916,929] [2024-12-02 11:14:21,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:14:21,921 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:14:21,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21 WrapperNode [2024-12-02 11:14:21,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:14:21,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:14:21,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:14:21,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:14:21,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:21,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:21,966 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2024-12-02 11:14:21,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:14:21,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:14:21,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:14:21,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:14:21,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:21,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:21,983 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:22,000 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:14:22,000 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:22,000 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:22,006 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:22,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:22,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:22,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:22,015 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:22,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:14:22,019 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:14:22,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:14:22,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:14:22,021 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (1/1) ... [2024-12-02 11:14:22,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:14:22,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:14:22,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:14:22,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:14:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:14:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:14:22,085 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:14:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:14:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:14:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:14:22,157 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:14:22,159 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:14:22,450 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 11:14:22,451 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:14:22,463 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:14:22,464 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:14:22,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:14:22 BoogieIcfgContainer [2024-12-02 11:14:22,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:14:22,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:14:22,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:14:22,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:14:22,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:14:21" (1/3) ... [2024-12-02 11:14:22,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad410d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:14:22, skipping insertion in model container [2024-12-02 11:14:22,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:14:21" (2/3) ... [2024-12-02 11:14:22,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad410d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:14:22, skipping insertion in model container [2024-12-02 11:14:22,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:14:22" (3/3) ... [2024-12-02 11:14:22,475 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-67.i [2024-12-02 11:14:22,489 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:14:22,490 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-67.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:14:22,549 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:14:22,562 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;@2152e171, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:14:22,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:14:22,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 11:14:22,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 11:14:22,575 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:22,576 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:22,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:14:22,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:22,583 INFO L85 PathProgramCache]: Analyzing trace with hash 177073877, now seen corresponding path program 1 times [2024-12-02 11:14:22,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:22,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477659855] [2024-12-02 11:14:22,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:22,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:22,831 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 11:14:22,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:14:22,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477659855] [2024-12-02 11:14:22,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477659855] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:14:22,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823693520] [2024-12-02 11:14:22,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:22,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:14:22,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:14:22,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:14:22,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:14:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:22,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:14:22,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:14:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 11:14:23,004 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:14:23,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823693520] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:14:23,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:14:23,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:14:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136799996] [2024-12-02 11:14:23,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:14:23,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:14:23,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:14:23,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:14:23,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:14:23,042 INFO L87 Difference]: Start difference. First operand has 52 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:14:23,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:14:23,072 INFO L93 Difference]: Finished difference Result 97 states and 157 transitions. [2024-12-02 11:14:23,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:14:23,074 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2024-12-02 11:14:23,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:14:23,082 INFO L225 Difference]: With dead ends: 97 [2024-12-02 11:14:23,082 INFO L226 Difference]: Without dead ends: 48 [2024-12-02 11:14:23,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 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 11:14:23,090 INFO L435 NwaCegarLoop]: 68 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, 68 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 11:14:23,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:14:23,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-12-02 11:14:23,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-12-02 11:14:23,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 11:14:23,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2024-12-02 11:14:23,127 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 68 transitions. Word has length 88 [2024-12-02 11:14:23,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:14:23,127 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 68 transitions. [2024-12-02 11:14:23,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:14:23,128 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2024-12-02 11:14:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 11:14:23,131 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:23,131 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:23,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:14:23,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:14:23,332 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:14:23,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:23,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2001817047, now seen corresponding path program 1 times [2024-12-02 11:14:23,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:23,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730572763] [2024-12-02 11:14:23,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:23,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:14:23,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:14:23,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730572763] [2024-12-02 11:14:23,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730572763] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:14:23,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:14:23,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:14:23,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953831732] [2024-12-02 11:14:23,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:14:23,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:14:23,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:14:23,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:14:23,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:14:23,821 INFO L87 Difference]: Start difference. First operand 48 states and 68 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:14:23,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:14:23,967 INFO L93 Difference]: Finished difference Result 94 states and 134 transitions. [2024-12-02 11:14:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:14:23,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 88 [2024-12-02 11:14:23,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:14:23,970 INFO L225 Difference]: With dead ends: 94 [2024-12-02 11:14:23,970 INFO L226 Difference]: Without dead ends: 49 [2024-12-02 11:14:23,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 11:14:23,972 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 20 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:14:23,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 137 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:14:23,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-12-02 11:14:23,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2024-12-02 11:14:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 11:14:23,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2024-12-02 11:14:23,981 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 88 [2024-12-02 11:14:23,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:14:23,983 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2024-12-02 11:14:23,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:14:23,984 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2024-12-02 11:14:23,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 11:14:23,985 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:23,985 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:23,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:14:23,986 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:14:23,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:23,986 INFO L85 PathProgramCache]: Analyzing trace with hash -947622894, now seen corresponding path program 1 times [2024-12-02 11:14:23,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:23,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342787171] [2024-12-02 11:14:23,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:23,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:16:24,568 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:16:24,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:16:24,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342787171] [2024-12-02 11:16:24,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342787171] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:16:24,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:16:24,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:16:24,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512489514] [2024-12-02 11:16:24,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:16:24,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:16:24,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:16:24,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:16:24,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:16:24,571 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:16:27,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:16:27,641 INFO L93 Difference]: Finished difference Result 105 states and 136 transitions. [2024-12-02 11:16:27,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:16:27,642 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 90 [2024-12-02 11:16:27,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:16:27,643 INFO L225 Difference]: With dead ends: 105 [2024-12-02 11:16:27,644 INFO L226 Difference]: Without dead ends: 103 [2024-12-02 11:16:27,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:16:27,644 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 107 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:16:27,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 300 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:16:27,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-12-02 11:16:27,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 60. [2024-12-02 11:16:27,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 45 states have internal predecessors, (57), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 11:16:27,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2024-12-02 11:16:27,651 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 90 [2024-12-02 11:16:27,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:16:27,651 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2024-12-02 11:16:27,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:16:27,651 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2024-12-02 11:16:27,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 11:16:27,652 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:16:27,653 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:27,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:16:27,653 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:16:27,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:16:27,653 INFO L85 PathProgramCache]: Analyzing trace with hash -246558316, now seen corresponding path program 1 times [2024-12-02 11:16:27,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:16:27,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328709727] [2024-12-02 11:16:27,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:16:27,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:16:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:18:06,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:06,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328709727] [2024-12-02 11:18:06,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328709727] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:06,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:06,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:18:06,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464620949] [2024-12-02 11:18:06,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:06,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:18:06,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:06,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:18:06,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:18:06,654 INFO L87 Difference]: Start difference. First operand 60 states and 83 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:18:09,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:09,244 INFO L93 Difference]: Finished difference Result 108 states and 141 transitions. [2024-12-02 11:18:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:18:09,245 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 90 [2024-12-02 11:18:09,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:09,246 INFO L225 Difference]: With dead ends: 108 [2024-12-02 11:18:09,246 INFO L226 Difference]: Without dead ends: 106 [2024-12-02 11:18:09,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:18:09,247 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 62 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:09,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 393 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:18:09,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-12-02 11:18:09,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 66. [2024-12-02 11:18:09,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 51 states have internal predecessors, (65), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 11:18:09,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2024-12-02 11:18:09,255 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 90 [2024-12-02 11:18:09,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:09,255 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2024-12-02 11:18:09,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:18:09,256 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2024-12-02 11:18:09,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 11:18:09,256 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:09,257 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:09,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:18:09,257 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:09,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:09,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1958740144, now seen corresponding path program 1 times [2024-12-02 11:18:09,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:09,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226509] [2024-12-02 11:18:09,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:09,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:18:09,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:09,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226509] [2024-12-02 11:18:09,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226509] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:09,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:09,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:18:09,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86071825] [2024-12-02 11:18:09,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:09,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:18:09,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:09,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:18:09,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:18:09,437 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:18:09,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:09,572 INFO L93 Difference]: Finished difference Result 191 states and 265 transitions. [2024-12-02 11:18:09,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:18:09,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 90 [2024-12-02 11:18:09,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:09,575 INFO L225 Difference]: With dead ends: 191 [2024-12-02 11:18:09,575 INFO L226 Difference]: Without dead ends: 128 [2024-12-02 11:18:09,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:18:09,576 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 42 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:09,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 171 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:18:09,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-12-02 11:18:09,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 92. [2024-12-02 11:18:09,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 63 states have internal predecessors, (77), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 11:18:09,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 129 transitions. [2024-12-02 11:18:09,592 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 129 transitions. Word has length 90 [2024-12-02 11:18:09,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:09,593 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 129 transitions. [2024-12-02 11:18:09,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:18:09,593 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 129 transitions. [2024-12-02 11:18:09,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 11:18:09,595 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:09,595 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:09,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:18:09,595 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:09,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:09,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1892513393, now seen corresponding path program 1 times [2024-12-02 11:18:09,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:09,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239072598] [2024-12-02 11:18:09,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:09,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:09,658 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:18:09,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:09,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239072598] [2024-12-02 11:18:09,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239072598] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:09,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:09,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:18:09,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274343763] [2024-12-02 11:18:09,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:09,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:18:09,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:09,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:18:09,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:18:09,660 INFO L87 Difference]: Start difference. First operand 92 states and 129 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:18:09,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:09,705 INFO L93 Difference]: Finished difference Result 178 states and 246 transitions. [2024-12-02 11:18:09,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:18:09,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-12-02 11:18:09,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:09,708 INFO L225 Difference]: With dead ends: 178 [2024-12-02 11:18:09,708 INFO L226 Difference]: Without dead ends: 115 [2024-12-02 11:18:09,708 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 11:18:09,709 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 23 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:09,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 124 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:18:09,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-12-02 11:18:09,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 107. [2024-12-02 11:18:09,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 75 states have (on average 1.2133333333333334) internal successors, (91), 76 states have internal predecessors, (91), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 11:18:09,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 147 transitions. [2024-12-02 11:18:09,725 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 147 transitions. Word has length 91 [2024-12-02 11:18:09,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:09,725 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 147 transitions. [2024-12-02 11:18:09,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:18:09,725 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 147 transitions. [2024-12-02 11:18:09,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 11:18:09,727 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:09,727 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:09,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:18:09,727 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:09,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:09,728 INFO L85 PathProgramCache]: Analyzing trace with hash 167466252, now seen corresponding path program 1 times [2024-12-02 11:18:09,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:09,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015493159] [2024-12-02 11:18:09,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:09,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:20:52,748 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:20:52,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:20:52,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015493159] [2024-12-02 11:20:52,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015493159] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:20:52,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:20:52,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:20:52,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555406736] [2024-12-02 11:20:52,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:20:52,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:20:52,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:20:52,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:20:52,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:20:52,749 INFO L87 Difference]: Start difference. First operand 107 states and 147 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:21:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:21:01,363 INFO L93 Difference]: Finished difference Result 172 states and 223 transitions. [2024-12-02 11:21:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:21:01,364 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-12-02 11:21:01,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:21:01,366 INFO L225 Difference]: With dead ends: 172 [2024-12-02 11:21:01,366 INFO L226 Difference]: Without dead ends: 170 [2024-12-02 11:21:01,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:21:01,367 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 54 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:21:01,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 393 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 11:21:01,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-12-02 11:21:01,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 110. [2024-12-02 11:21:01,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 79 states have internal predecessors, (96), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 11:21:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 152 transitions. [2024-12-02 11:21:01,382 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 152 transitions. Word has length 91 [2024-12-02 11:21:01,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:21:01,383 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 152 transitions. [2024-12-02 11:21:01,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:21:01,383 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 152 transitions. [2024-12-02 11:21:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 11:21:01,384 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:21:01,384 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:21:01,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:21:01,385 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:21:01,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:21:01,385 INFO L85 PathProgramCache]: Analyzing trace with hash 425631690, now seen corresponding path program 1 times [2024-12-02 11:21:01,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:21:01,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473627028] [2024-12-02 11:21:01,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:21:01,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:21:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:22:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:22:07,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:22:07,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473627028] [2024-12-02 11:22:07,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473627028] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:22:07,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:22:07,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:22:07,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369898133] [2024-12-02 11:22:07,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:22:07,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:22:07,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:22:07,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:22:07,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:22:07,740 INFO L87 Difference]: Start difference. First operand 110 states and 152 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:22:12,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:22:12,737 INFO L93 Difference]: Finished difference Result 172 states and 223 transitions. [2024-12-02 11:22:12,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:22:12,738 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-12-02 11:22:12,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:22:12,739 INFO L225 Difference]: With dead ends: 172 [2024-12-02 11:22:12,739 INFO L226 Difference]: Without dead ends: 170 [2024-12-02 11:22:12,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:22:12,740 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 62 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:22:12,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 346 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 11:22:12,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-12-02 11:22:12,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 108. [2024-12-02 11:22:12,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 76 states have (on average 1.2236842105263157) internal successors, (93), 77 states have internal predecessors, (93), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 11:22:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 149 transitions. [2024-12-02 11:22:12,756 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 149 transitions. Word has length 91 [2024-12-02 11:22:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:22:12,757 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 149 transitions. [2024-12-02 11:22:12,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:22:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 149 transitions. [2024-12-02 11:22:12,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 11:22:12,758 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:22:12,758 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:12,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:22:12,759 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:22:12,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:22:12,759 INFO L85 PathProgramCache]: Analyzing trace with hash 666839270, now seen corresponding path program 1 times [2024-12-02 11:22:12,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:22:12,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922031997] [2024-12-02 11:22:12,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:22:12,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:22:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:22:12,796 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:22:12,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:22:12,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922031997] [2024-12-02 11:22:12,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922031997] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:22:12,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:22:12,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:22:12,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783963811] [2024-12-02 11:22:12,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:22:12,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:22:12,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:22:12,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:22:12,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:22:12,798 INFO L87 Difference]: Start difference. First operand 108 states and 149 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:22:12,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:22:12,840 INFO L93 Difference]: Finished difference Result 198 states and 265 transitions. [2024-12-02 11:22:12,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:22:12,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-12-02 11:22:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:22:12,843 INFO L225 Difference]: With dead ends: 198 [2024-12-02 11:22:12,843 INFO L226 Difference]: Without dead ends: 119 [2024-12-02 11:22:12,843 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 11:22:12,844 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 26 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:22:12,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 128 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:22:12,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-12-02 11:22:12,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 103. [2024-12-02 11:22:12,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 72 states have internal predecessors, (87), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 11:22:12,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 139 transitions. [2024-12-02 11:22:12,855 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 139 transitions. Word has length 91 [2024-12-02 11:22:12,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:22:12,855 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 139 transitions. [2024-12-02 11:22:12,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:22:12,856 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 139 transitions. [2024-12-02 11:22:12,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 11:22:12,857 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:22:12,857 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:12,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:22:12,857 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:22:12,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:22:12,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1507003113, now seen corresponding path program 1 times [2024-12-02 11:22:12,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:22:12,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842324484] [2024-12-02 11:22:12,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:22:12,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:22:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:24:23,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:23,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842324484] [2024-12-02 11:24:23,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842324484] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:23,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:23,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:24:23,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294402497] [2024-12-02 11:24:23,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:23,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:24:23,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:23,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:24:23,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:24:23,443 INFO L87 Difference]: Start difference. First operand 103 states and 139 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:24:29,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:29,404 INFO L93 Difference]: Finished difference Result 161 states and 205 transitions. [2024-12-02 11:24:29,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:24:29,405 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-12-02 11:24:29,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:29,406 INFO L225 Difference]: With dead ends: 161 [2024-12-02 11:24:29,406 INFO L226 Difference]: Without dead ends: 159 [2024-12-02 11:24:29,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:24:29,407 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 67 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:29,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 282 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 11:24:29,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-12-02 11:24:29,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 107. [2024-12-02 11:24:29,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 76 states have (on average 1.236842105263158) internal successors, (94), 76 states have internal predecessors, (94), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 11:24:29,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 146 transitions. [2024-12-02 11:24:29,420 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 146 transitions. Word has length 92 [2024-12-02 11:24:29,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:29,421 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 146 transitions. [2024-12-02 11:24:29,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:24:29,421 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 146 transitions. [2024-12-02 11:24:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 11:24:29,422 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:29,422 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:29,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:24:29,422 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:29,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:29,422 INFO L85 PathProgramCache]: Analyzing trace with hash -826944743, now seen corresponding path program 1 times [2024-12-02 11:24:29,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:29,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338496771] [2024-12-02 11:24:29,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:29,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:54,958 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-02 11:24:54,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-12-02 11:24:54,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:24:54,959 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.postprocessInterpolant(NestedInterpolantsBuilder.java:472) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.buildPredicates(NestedInterpolantsBuilder.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:292) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:227) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 58 more [2024-12-02 11:24:54,963 INFO L158 Benchmark]: Toolchain (without parser) took 633321.32ms. Allocated memory was 117.4MB in the beginning and 696.3MB in the end (delta: 578.8MB). Free memory was 92.2MB in the beginning and 278.5MB in the end (delta: -186.3MB). Peak memory consumption was 419.5MB. Max. memory is 16.1GB. [2024-12-02 11:24:54,964 INFO L158 Benchmark]: CDTParser took 0.38ms. 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 11:24:54,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.69ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 79.6MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:24:54,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.79ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:24:54,964 INFO L158 Benchmark]: Boogie Preprocessor took 50.51ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 74.8MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:24:54,964 INFO L158 Benchmark]: RCFGBuilder took 445.57ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 59.3MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:24:54,965 INFO L158 Benchmark]: TraceAbstraction took 632496.12ms. Allocated memory was 117.4MB in the beginning and 696.3MB in the end (delta: 578.8MB). Free memory was 58.5MB in the beginning and 278.5MB in the end (delta: -220.0MB). Peak memory consumption was 385.9MB. Max. memory is 16.1GB. [2024-12-02 11:24:54,966 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.69ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 79.6MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.79ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.51ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 74.8MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 445.57ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 59.3MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 632496.12ms. Allocated memory was 117.4MB in the beginning and 696.3MB in the end (delta: 578.8MB). Free memory was 58.5MB in the beginning and 278.5MB in the end (delta: -220.0MB). Peak memory consumption was 385.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/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_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/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_78741246-cc95-4819-9616-03393e1ac752/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 84717a5c2896f013826b4f3140ab30111b65bd200eaa9dc30a2a86e9a93af713 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:24:56,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:24:56,983 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 11:24:56,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:24:56,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:24:57,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:24:57,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:24:57,015 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:24:57,015 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:24:57,015 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:24:57,016 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:24:57,016 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:24:57,016 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:24:57,016 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:24:57,016 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:24:57,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:24:57,017 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:24:57,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:24:57,018 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:24:57,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:24:57,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:24:57,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:24:57,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:24:57,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:24:57,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:24:57,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:24:57,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:24:57,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:24:57,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:24:57,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:24:57,019 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:24:57,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:24:57,019 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 11:24:57,019 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 11:24:57,019 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:24:57,019 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:24:57,019 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:24:57,019 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:24:57,019 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_78741246-cc95-4819-9616-03393e1ac752/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 -> 84717a5c2896f013826b4f3140ab30111b65bd200eaa9dc30a2a86e9a93af713 [2024-12-02 11:24:57,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:24:57,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:24:57,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:24:57,309 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:24:57,309 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:24:57,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i [2024-12-02 11:25:00,142 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/data/a85b0476e/82642dae5ad8407a8831881fe886ce1c/FLAG6219bbad1 [2024-12-02 11:25:00,362 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:25:00,362 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i [2024-12-02 11:25:00,372 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/data/a85b0476e/82642dae5ad8407a8831881fe886ce1c/FLAG6219bbad1 [2024-12-02 11:25:00,390 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/data/a85b0476e/82642dae5ad8407a8831881fe886ce1c [2024-12-02 11:25:00,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:25:00,395 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:25:00,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:25:00,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:25:00,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:25:00,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71061a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00, skipping insertion in model container [2024-12-02 11:25:00,404 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,423 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:25:00,582 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_78741246-cc95-4819-9616-03393e1ac752/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i[916,929] [2024-12-02 11:25:00,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:25:00,639 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:25:00,652 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_78741246-cc95-4819-9616-03393e1ac752/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i[916,929] [2024-12-02 11:25:00,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:25:00,691 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:25:00,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00 WrapperNode [2024-12-02 11:25:00,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:25:00,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:25:00,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:25:00,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:25:00,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,734 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-12-02 11:25:00,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:25:00,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:25:00,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:25:00,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:25:00,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,750 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,761 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:25:00,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,768 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,772 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,779 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:25:00,780 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:25:00,780 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:25:00,780 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:25:00,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (1/1) ... [2024-12-02 11:25:00,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:25:00,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:25:00,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:25:00,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:25:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:25:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 11:25:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:25:00,845 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:25:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:25:00,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:25:00,916 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:25:00,919 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:25:01,211 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-02 11:25:01,212 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:25:01,221 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:25:01,222 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:25:01,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:25:01 BoogieIcfgContainer [2024-12-02 11:25:01,222 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:25:01,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:25:01,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:25:01,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:25:01,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:25:00" (1/3) ... [2024-12-02 11:25:01,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a28262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:25:01, skipping insertion in model container [2024-12-02 11:25:01,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:00" (2/3) ... [2024-12-02 11:25:01,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a28262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:25:01, skipping insertion in model container [2024-12-02 11:25:01,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:25:01" (3/3) ... [2024-12-02 11:25:01,231 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-67.i [2024-12-02 11:25:01,244 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:25:01,245 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-67.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:25:01,293 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:25:01,304 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;@2e305584, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:25:01,304 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:25:01,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 11:25:01,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 11:25:01,315 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:01,316 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:01,316 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:01,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:01,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1832525488, now seen corresponding path program 1 times [2024-12-02 11:25:01,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:25:01,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [783419846] [2024-12-02 11:25:01,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:01,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:25:01,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:25:01,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:25:01,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:25:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:01,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:25:01,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:25:01,518 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 11:25:01,518 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:25:01,518 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:25:01,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783419846] [2024-12-02 11:25:01,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783419846] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:01,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:01,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:25:01,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697289784] [2024-12-02 11:25:01,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:01,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:25:01,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:25:01,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:25:01,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:25:01,547 INFO L87 Difference]: Start difference. First operand has 45 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:25:01,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:01,570 INFO L93 Difference]: Finished difference Result 83 states and 137 transitions. [2024-12-02 11:25:01,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:25:01,572 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2024-12-02 11:25:01,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:01,579 INFO L225 Difference]: With dead ends: 83 [2024-12-02 11:25:01,579 INFO L226 Difference]: Without dead ends: 41 [2024-12-02 11:25:01,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 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 11:25:01,586 INFO L435 NwaCegarLoop]: 58 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, 58 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 11:25:01,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:01,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-12-02 11:25:01,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-12-02 11:25:01,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 11:25:01,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2024-12-02 11:25:01,628 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 85 [2024-12-02 11:25:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:01,629 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2024-12-02 11:25:01,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:25:01,629 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2024-12-02 11:25:01,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 11:25:01,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:01,633 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:01,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:25:01,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:25:01,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:01,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:01,835 INFO L85 PathProgramCache]: Analyzing trace with hash -890457714, now seen corresponding path program 1 times [2024-12-02 11:25:01,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:25:01,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1072042376] [2024-12-02 11:25:01,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:01,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:25:01,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:25:01,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:25:01,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78741246-cc95-4819-9616-03393e1ac752/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:25:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:01,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 11:25:01,986 INFO L279 TraceCheckSpWp]: Computing forward predicates...