./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-31.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_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/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_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/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_566397ef-9655-49c4-b342-3efed4c2bf08/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 150a4f89afb8d47829e7ddadced75f5718c6f777677ea3eeca89c33b976a5a9c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:33:42,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:33:42,298 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 15:33:42,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:33:42,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:33:42,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:33:42,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:33:42,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:33:42,327 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:33:42,327 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:33:42,327 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:33:42,328 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:33:42,328 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:33:42,328 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:33:42,328 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:33:42,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:33:42,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:33:42,329 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:33:42,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:33:42,329 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:33:42,329 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:33:42,329 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:33:42,329 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:33:42,329 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:33:42,330 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:33:42,330 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:33:42,330 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:33:42,330 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:33:42,330 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:33:42,330 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:33:42,330 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:33:42,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:33:42,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:33:42,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:33:42,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:33:42,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:33:42,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:33:42,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:33:42,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:33:42,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:33:42,332 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:33:42,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:33:42,332 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:33:42,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:33:42,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:33:42,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:33:42,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:33:42,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:33:42,333 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_566397ef-9655-49c4-b342-3efed4c2bf08/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 -> 150a4f89afb8d47829e7ddadced75f5718c6f777677ea3eeca89c33b976a5a9c [2024-12-02 15:33:42,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:33:42,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:33:42,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:33:42,586 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:33:42,586 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:33:42,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-31.i [2024-12-02 15:33:45,309 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/data/8f876d804/e8f53571b75040908cb74405042ee940/FLAG9596e7b17 [2024-12-02 15:33:45,534 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:33:45,534 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-31.i [2024-12-02 15:33:45,541 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/data/8f876d804/e8f53571b75040908cb74405042ee940/FLAG9596e7b17 [2024-12-02 15:33:45,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/data/8f876d804/e8f53571b75040908cb74405042ee940 [2024-12-02 15:33:45,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:33:45,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:33:45,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:33:45,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:33:45,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:33:45,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575d5290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45, skipping insertion in model container [2024-12-02 15:33:45,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:33:45,710 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_566397ef-9655-49c4-b342-3efed4c2bf08/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-31.i[916,929] [2024-12-02 15:33:45,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:33:45,756 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:33:45,764 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_566397ef-9655-49c4-b342-3efed4c2bf08/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-31.i[916,929] [2024-12-02 15:33:45,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:33:45,792 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:33:45,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45 WrapperNode [2024-12-02 15:33:45,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:33:45,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:33:45,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:33:45,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:33:45,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,824 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 99 [2024-12-02 15:33:45,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:33:45,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:33:45,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:33:45,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:33:45,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,832 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,840 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 15:33:45,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,844 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,845 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,848 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:33:45,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:33:45,852 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:33:45,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:33:45,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (1/1) ... [2024-12-02 15:33:45,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:33:45,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:33:45,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:33:45,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:33:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:33:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:33:45,905 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:33:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:33:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:33:45,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:33:45,958 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:33:45,959 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:33:46,146 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-02 15:33:46,146 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:33:46,154 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:33:46,154 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:33:46,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:46 BoogieIcfgContainer [2024-12-02 15:33:46,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:33:46,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:33:46,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:33:46,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:33:46,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:33:45" (1/3) ... [2024-12-02 15:33:46,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ebe140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:46, skipping insertion in model container [2024-12-02 15:33:46,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:45" (2/3) ... [2024-12-02 15:33:46,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ebe140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:46, skipping insertion in model container [2024-12-02 15:33:46,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:46" (3/3) ... [2024-12-02 15:33:46,162 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-31.i [2024-12-02 15:33:46,173 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:33:46,174 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-31.i that has 2 procedures, 46 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:33:46,214 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:33:46,224 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;@3e61a56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:33:46,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:33:46,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 15:33:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 15:33:46,233 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:33:46,233 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:33:46,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:33:46,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:33:46,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1281230855, now seen corresponding path program 1 times [2024-12-02 15:33:46,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:33:46,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394440583] [2024-12-02 15:33:46,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:33:46,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:33:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:33:46,402 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 15:33:46,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:33:46,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394440583] [2024-12-02 15:33:46,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394440583] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:33:46,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986838213] [2024-12-02 15:33:46,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:33:46,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:33:46,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:33:46,405 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:33:46,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:33:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:33:46,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 15:33:46,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:33:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 15:33:46,525 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:33:46,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986838213] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:33:46,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:33:46,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 15:33:46,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500806312] [2024-12-02 15:33:46,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:33:46,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:33:46,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:33:46,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:33:46,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:33:46,547 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 15:33:46,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:33:46,564 INFO L93 Difference]: Finished difference Result 84 states and 142 transitions. [2024-12-02 15:33:46,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:33:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2024-12-02 15:33:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:33:46,570 INFO L225 Difference]: With dead ends: 84 [2024-12-02 15:33:46,570 INFO L226 Difference]: Without dead ends: 41 [2024-12-02 15:33:46,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 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 15:33:46,575 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 15:33:46,575 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 15:33:46,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-12-02 15:33:46,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-12-02 15:33:46,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 15:33:46,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2024-12-02 15:33:46,612 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 79 [2024-12-02 15:33:46,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:33:46,612 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2024-12-02 15:33:46,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 15:33:46,612 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2024-12-02 15:33:46,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 15:33:46,615 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:33:46,615 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:33:46,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:33:46,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 15:33:46,815 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:33:46,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:33:46,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1670297989, now seen corresponding path program 1 times [2024-12-02 15:33:46,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:33:46,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766724989] [2024-12-02 15:33:46,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:33:46,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:33:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:33:48,437 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 15:33:48,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:33:48,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766724989] [2024-12-02 15:33:48,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766724989] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:33:48,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:33:48,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 15:33:48,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158068722] [2024-12-02 15:33:48,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:33:48,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:33:48,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:33:48,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:33:48,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:33:48,440 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 15:33:48,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:33:48,746 INFO L93 Difference]: Finished difference Result 58 states and 77 transitions. [2024-12-02 15:33:48,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:33:48,748 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 79 [2024-12-02 15:33:48,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:33:48,749 INFO L225 Difference]: With dead ends: 58 [2024-12-02 15:33:48,750 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 15:33:48,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:33:48,751 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 48 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:33:48,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 212 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:33:48,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 15:33:48,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2024-12-02 15:33:48,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 15:33:48,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2024-12-02 15:33:48,761 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 79 [2024-12-02 15:33:48,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:33:48,763 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2024-12-02 15:33:48,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 15:33:48,763 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2024-12-02 15:33:48,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 15:33:48,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:33:48,765 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:33:48,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:33:48,765 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:33:48,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:33:48,766 INFO L85 PathProgramCache]: Analyzing trace with hash -186128321, now seen corresponding path program 1 times [2024-12-02 15:33:48,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:33:48,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327052845] [2024-12-02 15:33:48,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:33:48,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:33:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:33:50,290 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 15:33:50,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:33:50,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327052845] [2024-12-02 15:33:50,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327052845] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:33:50,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:33:50,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:33:50,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122612034] [2024-12-02 15:33:50,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:33:50,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:33:50,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:33:50,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:33:50,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:33:50,293 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 15:33:50,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:33:50,719 INFO L93 Difference]: Finished difference Result 110 states and 142 transitions. [2024-12-02 15:33:50,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:33:50,720 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 80 [2024-12-02 15:33:50,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:33:50,722 INFO L225 Difference]: With dead ends: 110 [2024-12-02 15:33:50,722 INFO L226 Difference]: Without dead ends: 108 [2024-12-02 15:33:50,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:33:50,723 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 89 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:33:50,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 351 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:33:50,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-12-02 15:33:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 81. [2024-12-02 15:33:50,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 57 states have (on average 1.280701754385965) internal successors, (73), 58 states have internal predecessors, (73), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 15:33:50,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 113 transitions. [2024-12-02 15:33:50,742 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 113 transitions. Word has length 80 [2024-12-02 15:33:50,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:33:50,742 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 113 transitions. [2024-12-02 15:33:50,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 15:33:50,743 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 113 transitions. [2024-12-02 15:33:50,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 15:33:50,744 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:33:50,745 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:33:50,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:33:50,745 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:33:50,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:33:50,746 INFO L85 PathProgramCache]: Analyzing trace with hash -184281279, now seen corresponding path program 1 times [2024-12-02 15:33:50,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:33:50,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271538222] [2024-12-02 15:33:50,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:33:50,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:33:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:33:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 15:33:51,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:33:51,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271538222] [2024-12-02 15:33:51,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271538222] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:33:51,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:33:51,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:33:51,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862830850] [2024-12-02 15:33:51,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:33:51,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:33:51,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:33:51,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:33:51,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:33:51,720 INFO L87 Difference]: Start difference. First operand 81 states and 113 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 15:33:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:33:52,126 INFO L93 Difference]: Finished difference Result 105 states and 137 transitions. [2024-12-02 15:33:52,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:33:52,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 80 [2024-12-02 15:33:52,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:33:52,129 INFO L225 Difference]: With dead ends: 105 [2024-12-02 15:33:52,129 INFO L226 Difference]: Without dead ends: 103 [2024-12-02 15:33:52,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:33:52,130 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 69 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:33:52,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 367 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:33:52,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-12-02 15:33:52,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 81. [2024-12-02 15:33:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 57 states have (on average 1.280701754385965) internal successors, (73), 58 states have internal predecessors, (73), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 15:33:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 113 transitions. [2024-12-02 15:33:52,148 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 113 transitions. Word has length 80 [2024-12-02 15:33:52,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:33:52,149 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 113 transitions. [2024-12-02 15:33:52,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 15:33:52,149 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 113 transitions. [2024-12-02 15:33:52,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 15:33:52,151 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:33:52,151 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:33:52,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:33:52,151 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:33:52,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:33:52,152 INFO L85 PathProgramCache]: Analyzing trace with hash 11442069, now seen corresponding path program 1 times [2024-12-02 15:33:52,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:33:52,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525753124] [2024-12-02 15:33:52,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:33:52,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:33:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:33:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 15:33:53,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:33:53,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525753124] [2024-12-02 15:33:53,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525753124] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:33:53,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:33:53,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:33:53,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641373624] [2024-12-02 15:33:53,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:33:53,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:33:53,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:33:53,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:33:53,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:33:53,095 INFO L87 Difference]: Start difference. First operand 81 states and 113 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 15:33:53,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:33:53,546 INFO L93 Difference]: Finished difference Result 132 states and 166 transitions. [2024-12-02 15:33:53,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:33:53,547 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 80 [2024-12-02 15:33:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:33:53,548 INFO L225 Difference]: With dead ends: 132 [2024-12-02 15:33:53,548 INFO L226 Difference]: Without dead ends: 130 [2024-12-02 15:33:53,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:33:53,549 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 97 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:33:53,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 453 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:33:53,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-12-02 15:33:53,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 82. [2024-12-02 15:33:53,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 58 states have (on average 1.293103448275862) internal successors, (75), 59 states have internal predecessors, (75), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 15:33:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 115 transitions. [2024-12-02 15:33:53,568 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 115 transitions. Word has length 80 [2024-12-02 15:33:53,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:33:53,568 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 115 transitions. [2024-12-02 15:33:53,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 15:33:53,569 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 115 transitions. [2024-12-02 15:33:53,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 15:33:53,570 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:33:53,571 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:33:53,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 15:33:53,571 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:33:53,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:33:53,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1492685350, now seen corresponding path program 1 times [2024-12-02 15:33:53,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:33:53,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131479300] [2024-12-02 15:33:53,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:33:53,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:33:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:33:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 15:33:53,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:33:53,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131479300] [2024-12-02 15:33:53,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131479300] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:33:53,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903415857] [2024-12-02 15:33:53,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:33:53,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:33:53,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:33:53,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:33:53,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:33:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:33:53,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 15:33:53,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:33:53,852 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 87 proven. 27 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 15:33:53,852 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:33:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 15:33:54,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903415857] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:33:54,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:33:54,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 15:33:54,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781559793] [2024-12-02 15:33:54,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:33:54,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:33:54,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:33:54,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:33:54,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:33:54,006 INFO L87 Difference]: Start difference. First operand 82 states and 115 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 15:33:54,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:33:54,136 INFO L93 Difference]: Finished difference Result 164 states and 219 transitions. [2024-12-02 15:33:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:33:54,137 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 81 [2024-12-02 15:33:54,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:33:54,139 INFO L225 Difference]: With dead ends: 164 [2024-12-02 15:33:54,139 INFO L226 Difference]: Without dead ends: 85 [2024-12-02 15:33:54,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:33:54,141 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 51 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:33:54,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 67 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:33:54,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-12-02 15:33:54,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2024-12-02 15:33:54,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 54 states have internal predecessors, (57), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 15:33:54,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 97 transitions. [2024-12-02 15:33:54,157 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 97 transitions. Word has length 81 [2024-12-02 15:33:54,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:33:54,158 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 97 transitions. [2024-12-02 15:33:54,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 15:33:54,158 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 97 transitions. [2024-12-02 15:33:54,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 15:33:54,160 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:33:54,160 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:33:54,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:33:54,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 15:33:54,361 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:33:54,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:33:54,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2060267277, now seen corresponding path program 1 times [2024-12-02 15:33:54,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:33:54,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904357207] [2024-12-02 15:33:54,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:33:54,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:33:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:33:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 15:33:55,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:33:55,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904357207] [2024-12-02 15:33:55,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904357207] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:33:55,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:33:55,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:33:55,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793722794] [2024-12-02 15:33:55,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:33:55,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:33:55,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:33:55,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:33:55,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:33:55,083 INFO L87 Difference]: Start difference. First operand 79 states and 97 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 15:33:55,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:33:55,329 INFO L93 Difference]: Finished difference Result 80 states and 98 transitions. [2024-12-02 15:33:55,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:33:55,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2024-12-02 15:33:55,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:33:55,330 INFO L225 Difference]: With dead ends: 80 [2024-12-02 15:33:55,330 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 15:33:55,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:33:55,331 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 15 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:33:55,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 209 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:33:55,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 15:33:55,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 15:33:55,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:33:55,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 15:33:55,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2024-12-02 15:33:55,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:33:55,333 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 15:33:55,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 15:33:55,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 15:33:55,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 15:33:55,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 15:33:55,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 15:33:55,340 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:33:55,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 15:33:55,826 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:33:55,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:33:55 BoogieIcfgContainer [2024-12-02 15:33:55,843 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:33:55,843 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:33:55,843 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:33:55,844 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:33:55,844 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:46" (3/4) ... [2024-12-02 15:33:55,846 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 15:33:55,852 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 15:33:55,857 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-12-02 15:33:55,857 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 15:33:55,857 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 15:33:55,857 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 15:33:55,946 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 15:33:55,946 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 15:33:55,946 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:33:55,947 INFO L158 Benchmark]: Toolchain (without parser) took 10388.74ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 116.6MB in the beginning and 140.3MB in the end (delta: -23.7MB). Peak memory consumption was 198.0MB. Max. memory is 16.1GB. [2024-12-02 15:33:55,948 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:33:55,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.42ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 104.0MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:33:55,948 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.68ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:33:55,949 INFO L158 Benchmark]: Boogie Preprocessor took 26.89ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 100.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:33:55,949 INFO L158 Benchmark]: RCFGBuilder took 302.61ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 85.0MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:33:55,949 INFO L158 Benchmark]: TraceAbstraction took 9686.36ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 84.4MB in the beginning and 144.4MB in the end (delta: -60.0MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. [2024-12-02 15:33:55,950 INFO L158 Benchmark]: Witness Printer took 103.15ms. Allocated memory is still 369.1MB. Free memory was 144.4MB in the beginning and 140.3MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:33:55,952 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.42ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 104.0MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.68ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.89ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 100.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 302.61ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 85.0MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9686.36ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 84.4MB in the beginning and 144.4MB in the end (delta: -60.0MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. * Witness Printer took 103.15ms. Allocated memory is still 369.1MB. Free memory was 144.4MB in the beginning and 140.3MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 7, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 371 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 369 mSDsluCounter, 1717 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1297 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 731 IncrementalHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 420 mSDtfsCounter, 731 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 313 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=5, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 114 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 720 NumberOfCodeBlocks, 720 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 791 ConstructedInterpolants, 0 QuantifiedInterpolants, 1903 SizeOfPredicates, 0 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 2537/2640 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: ((1073741822 <= var_1_3) && ((var_1_9 == var_1_12) || (((long long) var_1_8 * last_1_var_1_7) < ((long long) var_1_3 + 1)))) RESULT: Ultimate proved your program to be correct! [2024-12-02 15:33:55,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566397ef-9655-49c4-b342-3efed4c2bf08/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE