./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl --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 8c418b0c8344417842d256c30105b463d7c4d2db0994323aaa603b3ca1dc8de4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:27:10,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:27:10,835 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:27:10,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:27:10,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:27:10,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:27:10,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:27:10,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:27:10,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:27:10,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:27:10,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:27:10,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:27:10,870 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:27:10,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:27:10,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:27:10,872 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:27:10,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:27:10,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:27:10,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:27:10,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:27:10,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:27:10,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:27:10,876 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:27:10,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:27:10,877 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:27:10,877 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:27:10,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:27:10,878 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:27:10,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:10,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:27:10,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:27:10,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:27:10,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:27:10,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:27:10,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:27:10,882 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:27:10,882 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:27:10,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:27:10,883 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:27:10,883 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c418b0c8344417842d256c30105b463d7c4d2db0994323aaa603b3ca1dc8de4 [2023-11-12 02:27:11,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:27:11,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:27:11,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:27:11,204 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:27:11,205 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:27:11,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-12 02:27:14,280 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:27:14,553 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:27:14,554 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-12 02:27:14,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/data/f16d8d21d/70cd677cc2e9445fac096f30af49a2e4/FLAG097e1e1ae [2023-11-12 02:27:14,578 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/data/f16d8d21d/70cd677cc2e9445fac096f30af49a2e4 [2023-11-12 02:27:14,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:27:14,583 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:27:14,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:14,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:27:14,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:27:14,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:14,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f367c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14, skipping insertion in model container [2023-11-12 02:27:14,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:14,619 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:27:14,768 WARN L240 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_ba162f31-623c-4bce-b258-17261854c3cc/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i[917,930] [2023-11-12 02:27:14,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:14,837 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:27:14,856 WARN L240 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_ba162f31-623c-4bce-b258-17261854c3cc/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i[917,930] [2023-11-12 02:27:14,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:14,932 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:27:14,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14 WrapperNode [2023-11-12 02:27:14,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:14,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:14,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:27:14,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:27:14,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:14,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:15,011 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2023-11-12 02:27:15,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:15,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:27:15,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:27:15,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:27:15,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:15,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:15,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:15,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:15,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:15,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:15,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:15,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:15,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:27:15,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:27:15,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:27:15,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:27:15,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (1/1) ... [2023-11-12 02:27:15,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:15,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:15,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:27:15,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:27:15,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:27:15,177 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:27:15,177 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:27:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:27:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:27:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:27:15,262 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:27:15,264 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:27:15,657 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:27:15,667 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:27:15,667 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:27:15,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:15 BoogieIcfgContainer [2023-11-12 02:27:15,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:27:15,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:27:15,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:27:15,676 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:27:15,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:27:14" (1/3) ... [2023-11-12 02:27:15,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4157852b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:15, skipping insertion in model container [2023-11-12 02:27:15,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:14" (2/3) ... [2023-11-12 02:27:15,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4157852b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:15, skipping insertion in model container [2023-11-12 02:27:15,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:15" (3/3) ... [2023-11-12 02:27:15,680 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-12 02:27:15,701 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:27:15,702 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:27:15,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:27:15,761 INFO L357 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, mHoare=true, 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;@4a78976f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:27:15,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:27:15,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:27:15,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-12 02:27:15,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:15,786 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:15,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:15,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:15,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1608533642, now seen corresponding path program 1 times [2023-11-12 02:27:15,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:15,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905590838] [2023-11-12 02:27:15,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:15,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:27:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:27:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:27:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:27:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:27:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:27:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:27:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:27:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-12 02:27:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:27:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:27:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:27:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-12 02:27:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:27:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:27:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:27:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-12 02:27:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-12 02:27:16,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:16,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905590838] [2023-11-12 02:27:16,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905590838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:16,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:16,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:16,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062139000] [2023-11-12 02:27:16,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:16,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:27:16,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:16,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:27:16,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:27:16,433 INFO L87 Difference]: Start difference. First operand has 56 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-12 02:27:16,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:16,464 INFO L93 Difference]: Finished difference Result 105 states and 179 transitions. [2023-11-12 02:27:16,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:27:16,466 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 111 [2023-11-12 02:27:16,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:16,474 INFO L225 Difference]: With dead ends: 105 [2023-11-12 02:27:16,475 INFO L226 Difference]: Without dead ends: 52 [2023-11-12 02:27:16,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:27:16,482 INFO L413 NwaCegarLoop]: 77 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, 77 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 [2023-11-12 02:27:16,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:27:16,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-12 02:27:16,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-12 02:27:16,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:27:16,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2023-11-12 02:27:16,539 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 111 [2023-11-12 02:27:16,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:16,540 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2023-11-12 02:27:16,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-12 02:27:16,541 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2023-11-12 02:27:16,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-12 02:27:16,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:16,545 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:16,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:27:16,552 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:16,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:16,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1791989772, now seen corresponding path program 1 times [2023-11-12 02:27:16,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:16,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860847359] [2023-11-12 02:27:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:16,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:27:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:27:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:27:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:27:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:27:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:27:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:27:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:27:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-12 02:27:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:27:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:27:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:27:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-12 02:27:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:27:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:27:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:27:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-12 02:27:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-12 02:27:19,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:19,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860847359] [2023-11-12 02:27:19,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860847359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:19,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:19,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:27:19,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835675560] [2023-11-12 02:27:19,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:19,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:27:19,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:19,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:27:19,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:27:19,398 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-12 02:27:20,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:20,000 INFO L93 Difference]: Finished difference Result 129 states and 185 transitions. [2023-11-12 02:27:20,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:27:20,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 111 [2023-11-12 02:27:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:20,008 INFO L225 Difference]: With dead ends: 129 [2023-11-12 02:27:20,008 INFO L226 Difference]: Without dead ends: 80 [2023-11-12 02:27:20,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:27:20,019 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 144 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:20,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 139 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:27:20,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-12 02:27:20,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 59. [2023-11-12 02:27:20,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:27:20,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 84 transitions. [2023-11-12 02:27:20,062 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 84 transitions. Word has length 111 [2023-11-12 02:27:20,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:20,065 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 84 transitions. [2023-11-12 02:27:20,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-12 02:27:20,066 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 84 transitions. [2023-11-12 02:27:20,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-12 02:27:20,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:20,075 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:20,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:27:20,075 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:20,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:20,076 INFO L85 PathProgramCache]: Analyzing trace with hash -727970162, now seen corresponding path program 1 times [2023-11-12 02:27:20,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:20,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426612730] [2023-11-12 02:27:20,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:20,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:27:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:27:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:27:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:27:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:27:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:27:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:27:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:27:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-12 02:27:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:27:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:27:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:27:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-12 02:27:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:27:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:27:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:27:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-12 02:27:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-12 02:27:20,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:20,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426612730] [2023-11-12 02:27:20,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426612730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:20,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:20,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:27:20,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501013432] [2023-11-12 02:27:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:20,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:27:20,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:20,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:27:20,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:27:20,562 INFO L87 Difference]: Start difference. First operand 59 states and 84 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:27:20,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:20,756 INFO L93 Difference]: Finished difference Result 172 states and 247 transitions. [2023-11-12 02:27:20,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:27:20,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2023-11-12 02:27:20,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:20,760 INFO L225 Difference]: With dead ends: 172 [2023-11-12 02:27:20,760 INFO L226 Difference]: Without dead ends: 116 [2023-11-12 02:27:20,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:27:20,762 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 54 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:20,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 201 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:27:20,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-12 02:27:20,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 108. [2023-11-12 02:27:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 69 states have internal predecessors, (87), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 02:27:20,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2023-11-12 02:27:20,801 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 111 [2023-11-12 02:27:20,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:20,802 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2023-11-12 02:27:20,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:27:20,803 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2023-11-12 02:27:20,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-12 02:27:20,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:20,805 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:20,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:27:20,805 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:20,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:20,806 INFO L85 PathProgramCache]: Analyzing trace with hash 151475453, now seen corresponding path program 1 times [2023-11-12 02:27:20,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:20,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430907961] [2023-11-12 02:27:20,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:20,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:27:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:27:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:27:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:27:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:27:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:27:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:27:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:20,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:27:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-12 02:27:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:27:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:27:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:27:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-12 02:27:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:27:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:27:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:27:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-12 02:27:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-12 02:27:21,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:21,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430907961] [2023-11-12 02:27:21,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430907961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:21,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:21,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:27:21,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90487891] [2023-11-12 02:27:21,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:21,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:27:21,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:21,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:27:21,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:27:21,057 INFO L87 Difference]: Start difference. First operand 108 states and 155 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:27:21,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:21,204 INFO L93 Difference]: Finished difference Result 183 states and 262 transitions. [2023-11-12 02:27:21,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:27:21,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2023-11-12 02:27:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:21,207 INFO L225 Difference]: With dead ends: 183 [2023-11-12 02:27:21,207 INFO L226 Difference]: Without dead ends: 116 [2023-11-12 02:27:21,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:27:21,210 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 51 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:21,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 205 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:27:21,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-12 02:27:21,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 109. [2023-11-12 02:27:21,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 70 states have internal predecessors, (87), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 02:27:21,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 155 transitions. [2023-11-12 02:27:21,247 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 155 transitions. Word has length 113 [2023-11-12 02:27:21,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:21,248 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 155 transitions. [2023-11-12 02:27:21,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:27:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 155 transitions. [2023-11-12 02:27:21,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-12 02:27:21,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:21,250 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:21,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:27:21,251 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:21,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:21,251 INFO L85 PathProgramCache]: Analyzing trace with hash -433483519, now seen corresponding path program 1 times [2023-11-12 02:27:21,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:21,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476459959] [2023-11-12 02:27:21,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:21,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:27:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:27:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:27:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:27:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:27:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:27:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:27:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-12 02:27:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-12 02:27:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:27:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:27:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:27:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-12 02:27:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:27:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:27:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:27:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-12 02:27:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-12 02:27:21,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:21,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476459959] [2023-11-12 02:27:21,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476459959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:21,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:21,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:27:21,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29434856] [2023-11-12 02:27:21,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:21,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:27:21,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:21,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:27:21,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:27:21,634 INFO L87 Difference]: Start difference. First operand 109 states and 155 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:27:21,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:21,908 INFO L93 Difference]: Finished difference Result 200 states and 275 transitions. [2023-11-12 02:27:21,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:27:21,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2023-11-12 02:27:21,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:21,913 INFO L225 Difference]: With dead ends: 200 [2023-11-12 02:27:21,913 INFO L226 Difference]: Without dead ends: 138 [2023-11-12 02:27:21,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:27:21,916 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 102 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:21,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 325 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:27:21,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-12 02:27:21,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 110. [2023-11-12 02:27:21,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 71 states have internal predecessors, (88), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 02:27:21,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2023-11-12 02:27:21,972 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 113 [2023-11-12 02:27:21,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:21,973 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2023-11-12 02:27:21,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:27:21,974 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2023-11-12 02:27:21,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-12 02:27:21,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:21,975 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:21,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:27:21,976 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:21,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:21,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1076927685, now seen corresponding path program 1 times [2023-11-12 02:27:21,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:21,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170831243] [2023-11-12 02:27:21,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:21,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:27:22,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:27:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:27:22,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:27:22,234 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:27:22,235 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:27:22,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:27:22,241 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-12 02:27:22,244 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:27:22,310 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:27:22,312 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-12 02:27:22,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:27:22 BoogieIcfgContainer [2023-11-12 02:27:22,356 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:27:22,356 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:27:22,357 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:27:22,357 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:27:22,357 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:15" (3/4) ... [2023-11-12 02:27:22,359 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:27:22,360 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:27:22,361 INFO L158 Benchmark]: Toolchain (without parser) took 7778.34ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 119.0MB in the beginning and 135.1MB in the end (delta: -16.1MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-11-12 02:27:22,361 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 153.1MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:27:22,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.96ms. Allocated memory is still 153.1MB. Free memory was 118.5MB in the beginning and 106.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:27:22,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.70ms. Allocated memory is still 153.1MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:27:22,365 INFO L158 Benchmark]: Boogie Preprocessor took 61.29ms. Allocated memory is still 153.1MB. Free memory was 104.0MB in the beginning and 102.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:27:22,365 INFO L158 Benchmark]: RCFGBuilder took 593.87ms. Allocated memory is still 153.1MB. Free memory was 102.4MB in the beginning and 86.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 02:27:22,365 INFO L158 Benchmark]: TraceAbstraction took 6683.60ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 85.6MB in the beginning and 135.1MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:27:22,366 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 197.1MB. Free memory is still 135.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:27:22,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 153.1MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.96ms. Allocated memory is still 153.1MB. Free memory was 118.5MB in the beginning and 106.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.70ms. Allocated memory is still 153.1MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.29ms. Allocated memory is still 153.1MB. Free memory was 104.0MB in the beginning and 102.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 593.87ms. Allocated memory is still 153.1MB. Free memory was 102.4MB in the beginning and 86.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6683.60ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 85.6MB in the beginning and 135.1MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 197.1MB. Free memory is still 135.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of bitwiseOr at line 103. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -8; [L23] unsigned char var_1_5 = 0; [L24] unsigned char var_1_6 = 1; [L25] signed char var_1_7 = -1; [L26] signed char var_1_8 = -50; [L27] signed char var_1_9 = 100; [L28] unsigned long int var_1_10 = 25; [L29] unsigned long int var_1_11 = 2568920345; [L30] unsigned long int var_1_12 = 1191097264; [L31] unsigned long int var_1_13 = 1801344522; [L32] signed long int var_1_14 = 64; [L33] signed short int var_1_15 = -16; [L34] float var_1_16 = 1000000.5; [L35] float var_1_17 = 4.5; [L36] unsigned char var_1_18 = 0; [L37] unsigned char var_1_19 = 128; [L38] unsigned long int last_1_var_1_10 = 25; [L39] signed short int last_1_var_1_15 = -16; [L40] unsigned char last_1_var_1_18 = 0; VAL [isInitial=0, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L107] isInitial = 1 [L108] FCALL initially() [L109] COND TRUE 1 [L110] CALL updateLastVariables() [L98] last_1_var_1_10 = var_1_10 [L99] last_1_var_1_15 = var_1_15 [L100] last_1_var_1_18 = var_1_18 VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L110] RET updateLastVariables() [L111] CALL updateVariables() [L70] var_1_5 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L72] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L72] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L73] var_1_6 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L74] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L75] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L75] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L76] var_1_7 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L77] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L78] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L78] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L79] var_1_9 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L80] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L81] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L81] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L82] var_1_11 = __VERIFIER_nondet_ulong() [L83] CALL assume_abort_if_not(var_1_11 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L83] RET assume_abort_if_not(var_1_11 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L84] CALL assume_abort_if_not(var_1_11 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L84] RET assume_abort_if_not(var_1_11 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L85] var_1_12 = __VERIFIER_nondet_ulong() [L86] CALL assume_abort_if_not(var_1_12 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L86] RET assume_abort_if_not(var_1_12 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L87] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L87] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L88] var_1_13 = __VERIFIER_nondet_ulong() [L89] CALL assume_abort_if_not(var_1_13 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L89] RET assume_abort_if_not(var_1_13 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L90] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L90] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L91] var_1_17 = __VERIFIER_nondet_float() [L92] CALL assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L92] RET assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L93] var_1_19 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L94] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L95] CALL assume_abort_if_not(var_1_19 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L95] RET assume_abort_if_not(var_1_19 <= 254) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L111] RET updateVariables() [L112] CALL step() [L44] EXPR last_1_var_1_15 | last_1_var_1_10 VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L44] COND FALSE !(((last_1_var_1_15 | last_1_var_1_10) > last_1_var_1_18) && var_1_5) [L51] var_1_1 = var_1_7 VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L53] COND FALSE !(\read(var_1_5)) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L56] COND TRUE var_1_12 <= var_1_8 [L57] var_1_14 = ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L59] var_1_15 = 2 [L60] var_1_16 = var_1_17 [L61] var_1_18 = var_1_19 [L62] unsigned char stepLocal_0 = var_1_8 < var_1_1; VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, stepLocal_0=1, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=2, var_1_16=4294967285, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L63] COND TRUE stepLocal_0 && (((((var_1_9) > (var_1_8)) ? (var_1_9) : (var_1_8))) == var_1_7) [L64] var_1_10 = (var_1_11 - (((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))) - 1u)) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, stepLocal_0=1, var_1_10=1, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=2, var_1_16=4294967285, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L112] RET step() [L113] CALL, EXPR property() [L103] EXPR last_1_var_1_15 | last_1_var_1_10 VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=1, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=2, var_1_16=4294967285, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L103-L104] return (((((((((last_1_var_1_15 | last_1_var_1_10) > last_1_var_1_18) && var_1_5) ? ((var_1_5 && var_1_6) ? (var_1_1 == ((signed char) var_1_7)) : (var_1_1 == ((signed char) var_1_7))) : (var_1_1 == ((signed char) var_1_7))) && (var_1_5 ? (var_1_8 == ((signed char) ((((var_1_7) > (var_1_9)) ? (var_1_7) : (var_1_9))))) : 1)) && (((var_1_8 < var_1_1) && (((((var_1_9) > (var_1_8)) ? (var_1_9) : (var_1_8))) == var_1_7)) ? (var_1_10 == ((unsigned long int) (var_1_11 - (((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))) - 1u)))) : (var_1_10 == ((unsigned long int) (var_1_11 - var_1_13))))) && ((var_1_12 <= var_1_8) ? (var_1_14 == ((signed long int) ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) : 1)) && (var_1_15 == ((signed short int) 2))) && (var_1_16 == ((float) var_1_17))) && (var_1_18 == ((unsigned char) var_1_19)) ; [L113] RET, EXPR property() [L113] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=1, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=2, var_1_16=4294967285, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=1, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=2, var_1_16=4294967285, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 6, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 351 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 351 mSDsluCounter, 947 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 589 mSDsCounter, 198 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 198 mSolverCounterUnsat, 358 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 64 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 672 NumberOfCodeBlocks, 672 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 554 ConstructedInterpolants, 0 QuantifiedInterpolants, 2130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2720/2720 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:27:22,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl --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 8c418b0c8344417842d256c30105b463d7c4d2db0994323aaa603b3ca1dc8de4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:27:25,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:27:25,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:27:25,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:27:25,166 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:27:25,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:27:25,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:27:25,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:27:25,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:27:25,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:27:25,218 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:27:25,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:27:25,220 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:27:25,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:27:25,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:27:25,223 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:27:25,223 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:27:25,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:27:25,224 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:27:25,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:27:25,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:27:25,226 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:27:25,227 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:27:25,227 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:27:25,228 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:27:25,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:27:25,228 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:27:25,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:27:25,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:27:25,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:27:25,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:25,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:27:25,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:27:25,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:27:25,232 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:27:25,233 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:27:25,233 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:27:25,233 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:27:25,233 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:27:25,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:27:25,235 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:27:25,235 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:27:25,235 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c418b0c8344417842d256c30105b463d7c4d2db0994323aaa603b3ca1dc8de4 [2023-11-12 02:27:25,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:27:25,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:27:25,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:27:25,718 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:27:25,719 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:27:25,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-12 02:27:28,900 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:27:29,236 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:27:29,237 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-12 02:27:29,247 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/data/2b647c1b3/e72fd2e25c4f48dfb2d3dda7803889ca/FLAG3cbf7d78d [2023-11-12 02:27:29,260 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/data/2b647c1b3/e72fd2e25c4f48dfb2d3dda7803889ca [2023-11-12 02:27:29,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:27:29,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:27:29,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:29,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:27:29,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:27:29,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c83924b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29, skipping insertion in model container [2023-11-12 02:27:29,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,302 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:27:29,456 WARN L240 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_ba162f31-623c-4bce-b258-17261854c3cc/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i[917,930] [2023-11-12 02:27:29,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:29,517 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:27:29,530 WARN L240 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_ba162f31-623c-4bce-b258-17261854c3cc/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i[917,930] [2023-11-12 02:27:29,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:29,574 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:27:29,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29 WrapperNode [2023-11-12 02:27:29,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:29,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:29,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:27:29,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:27:29,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,644 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-12 02:27:29,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:29,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:27:29,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:27:29,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:27:29,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,671 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:27:29,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:27:29,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:27:29,686 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:27:29,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (1/1) ... [2023-11-12 02:27:29,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:29,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:29,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:27:29,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:27:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:27:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:27:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:27:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:27:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:27:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:27:29,853 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:27:29,855 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:27:30,217 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:27:30,229 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:27:30,233 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:27:30,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:30 BoogieIcfgContainer [2023-11-12 02:27:30,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:27:30,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:27:30,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:27:30,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:27:30,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:27:29" (1/3) ... [2023-11-12 02:27:30,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc42e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:30, skipping insertion in model container [2023-11-12 02:27:30,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:29" (2/3) ... [2023-11-12 02:27:30,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc42e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:30, skipping insertion in model container [2023-11-12 02:27:30,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:30" (3/3) ... [2023-11-12 02:27:30,254 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-12 02:27:30,279 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:27:30,279 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:27:30,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:27:30,337 INFO L357 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, mHoare=true, 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;@dfafd86, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:27:30,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:27:30,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:27:30,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-12 02:27:30,357 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:30,357 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:30,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:30,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:30,365 INFO L85 PathProgramCache]: Analyzing trace with hash -151393228, now seen corresponding path program 1 times [2023-11-12 02:27:30,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:27:30,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731283827] [2023-11-12 02:27:30,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:30,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:30,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:27:30,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:27:30,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 02:27:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:30,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:27:30,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:30,664 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-12 02:27:30,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:30,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:27:30,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731283827] [2023-11-12 02:27:30,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731283827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:30,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:30,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:30,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134184535] [2023-11-12 02:27:30,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:30,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:27:30,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:27:30,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:27:30,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:27:30,709 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-12 02:27:30,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:30,741 INFO L93 Difference]: Finished difference Result 95 states and 161 transitions. [2023-11-12 02:27:30,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:27:30,744 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2023-11-12 02:27:30,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:30,752 INFO L225 Difference]: With dead ends: 95 [2023-11-12 02:27:30,752 INFO L226 Difference]: Without dead ends: 47 [2023-11-12 02:27:30,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:27:30,760 INFO L413 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 [2023-11-12 02:27:30,761 INFO L414 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] [2023-11-12 02:27:30,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-12 02:27:30,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-12 02:27:30,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-12 02:27:30,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2023-11-12 02:27:30,811 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 108 [2023-11-12 02:27:30,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:30,812 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2023-11-12 02:27:30,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-12 02:27:30,812 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2023-11-12 02:27:30,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-12 02:27:30,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:30,817 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:30,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-12 02:27:31,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:31,022 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:31,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:31,023 INFO L85 PathProgramCache]: Analyzing trace with hash 222157298, now seen corresponding path program 1 times [2023-11-12 02:27:31,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:27:31,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426793180] [2023-11-12 02:27:31,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:31,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:31,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:27:31,055 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:27:31,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 02:27:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:31,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:27:31,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-12 02:27:31,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:31,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:27:31,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426793180] [2023-11-12 02:27:31,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426793180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:31,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:31,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:27:31,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702406919] [2023-11-12 02:27:31,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:31,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:27:31,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:27:31,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:27:31,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:27:31,595 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:27:31,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:31,804 INFO L93 Difference]: Finished difference Result 158 states and 226 transitions. [2023-11-12 02:27:31,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:27:31,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-11-12 02:27:31,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:31,809 INFO L225 Difference]: With dead ends: 158 [2023-11-12 02:27:31,810 INFO L226 Difference]: Without dead ends: 114 [2023-11-12 02:27:31,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:27:31,813 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 84 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:31,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 254 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:27:31,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-12 02:27:31,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 81. [2023-11-12 02:27:31,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 02:27:31,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 119 transitions. [2023-11-12 02:27:31,846 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 119 transitions. Word has length 108 [2023-11-12 02:27:31,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:31,847 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 119 transitions. [2023-11-12 02:27:31,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:27:31,848 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 119 transitions. [2023-11-12 02:27:31,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-12 02:27:31,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:31,851 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:31,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:32,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:32,072 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:32,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:32,072 INFO L85 PathProgramCache]: Analyzing trace with hash -587189328, now seen corresponding path program 1 times [2023-11-12 02:27:32,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:27:32,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153268911] [2023-11-12 02:27:32,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:32,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:32,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:27:32,075 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:27:32,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 02:27:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:32,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:27:32,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:32,731 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 258 proven. 15 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-11-12 02:27:32,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:27:33,034 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-12 02:27:33,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:27:33,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153268911] [2023-11-12 02:27:33,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153268911] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:27:33,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:27:33,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-12 02:27:33,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418967423] [2023-11-12 02:27:33,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:27:33,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:27:33,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:27:33,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:27:33,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:27:33,056 INFO L87 Difference]: Start difference. First operand 81 states and 119 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-11-12 02:27:33,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:33,921 INFO L93 Difference]: Finished difference Result 242 states and 342 transitions. [2023-11-12 02:27:33,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:27:33,922 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 108 [2023-11-12 02:27:33,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:33,926 INFO L225 Difference]: With dead ends: 242 [2023-11-12 02:27:33,926 INFO L226 Difference]: Without dead ends: 198 [2023-11-12 02:27:33,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:27:33,928 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 172 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:33,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 176 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 02:27:33,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-12 02:27:33,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 157. [2023-11-12 02:27:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 89 states have (on average 1.1573033707865168) internal successors, (103), 90 states have internal predecessors, (103), 61 states have call successors, (61), 6 states have call predecessors, (61), 6 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-12 02:27:33,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 225 transitions. [2023-11-12 02:27:33,977 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 225 transitions. Word has length 108 [2023-11-12 02:27:33,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:33,978 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 225 transitions. [2023-11-12 02:27:33,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-11-12 02:27:33,978 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 225 transitions. [2023-11-12 02:27:33,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-12 02:27:33,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:33,993 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:34,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:34,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:34,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:34,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:34,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1932770606, now seen corresponding path program 1 times [2023-11-12 02:27:34,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:27:34,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662710705] [2023-11-12 02:27:34,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:34,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:34,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:27:34,216 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:27:34,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba162f31-623c-4bce-b258-17261854c3cc/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-12 02:27:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:34,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-12 02:27:34,351 INFO L285 TraceCheckSpWp]: Computing forward predicates...