./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-41.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_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-41.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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_69a5e901-a9de-4b49-bba0-4407b68a9b49/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 1605b160926a78e1fde223527934d14da473f0110a1b5b03b3aa4225b20b34fa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:25:04,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:25:04,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:25:04,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:25:04,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:25:04,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:25:04,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:25:04,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:25:04,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:25:04,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:25:04,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:25:04,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:25:04,725 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:25:04,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:25:04,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:25:04,728 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:25:04,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:25:04,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:25:04,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:25:04,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:25:04,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:25:04,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:25:04,731 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:25:04,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:25:04,732 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:25:04,732 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:25:04,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:25:04,733 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:25:04,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:04,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:25:04,736 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:25:04,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:25:04,736 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:25:04,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:25:04,737 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:25:04,737 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:25:04,737 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:25:04,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:25:04,738 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:25:04,738 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_69a5e901-a9de-4b49-bba0-4407b68a9b49/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1605b160926a78e1fde223527934d14da473f0110a1b5b03b3aa4225b20b34fa [2023-11-12 02:25:05,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:25:05,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:25:05,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:25:05,101 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:25:05,101 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:25:05,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-41.i [2023-11-12 02:25:08,293 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:25:08,527 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:25:08,528 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-41.i [2023-11-12 02:25:08,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/data/09707ec61/d3f670eb0e6c434dac2f6725b10c97ae/FLAG20e843b6d [2023-11-12 02:25:08,554 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/data/09707ec61/d3f670eb0e6c434dac2f6725b10c97ae [2023-11-12 02:25:08,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:25:08,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:25:08,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:08,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:25:08,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:25:08,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@100649ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08, skipping insertion in model container [2023-11-12 02:25:08,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,603 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:25:08,758 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_69a5e901-a9de-4b49-bba0-4407b68a9b49/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-41.i[913,926] [2023-11-12 02:25:08,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:08,822 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:25:08,835 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_69a5e901-a9de-4b49-bba0-4407b68a9b49/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-41.i[913,926] [2023-11-12 02:25:08,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:08,887 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:25:08,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08 WrapperNode [2023-11-12 02:25:08,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:08,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:08,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:25:08,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:25:08,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,973 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-12 02:25:08,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:08,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:25:08,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:25:08,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:25:08,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:08,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:09,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:09,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:09,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:09,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:09,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:25:09,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:25:09,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:25:09,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:25:09,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (1/1) ... [2023-11-12 02:25:09,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:09,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:09,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:25:09,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:25:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:25:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:25:09,120 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:25:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:25:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:25:09,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:25:09,249 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:25:09,252 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:25:09,713 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:25:09,724 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:25:09,725 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:25:09,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:09 BoogieIcfgContainer [2023-11-12 02:25:09,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:25:09,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:25:09,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:25:09,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:25:09,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:25:08" (1/3) ... [2023-11-12 02:25:09,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7297b291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:09, skipping insertion in model container [2023-11-12 02:25:09,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:08" (2/3) ... [2023-11-12 02:25:09,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7297b291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:09, skipping insertion in model container [2023-11-12 02:25:09,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:09" (3/3) ... [2023-11-12 02:25:09,747 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-41.i [2023-11-12 02:25:09,769 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:25:09,770 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:25:09,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:25:09,825 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;@6ebc4801, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:25:09,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:25:09,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 02:25:09,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 02:25:09,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:09,847 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:09,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:09,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:09,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1457831294, now seen corresponding path program 1 times [2023-11-12 02:25:09,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:09,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161822387] [2023-11-12 02:25:09,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:09,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:10,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161822387] [2023-11-12 02:25:10,150 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:25:10,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649762358] [2023-11-12 02:25:10,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:10,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:10,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:10,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:10,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:25:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:25:10,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:10,413 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-12 02:25:10,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:25:10,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649762358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:10,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:10,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:25:10,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031418905] [2023-11-12 02:25:10,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:10,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:25:10,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:10,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:25:10,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:25:10,477 INFO L87 Difference]: Start difference. First operand has 52 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 02:25:10,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:10,510 INFO L93 Difference]: Finished difference Result 97 states and 161 transitions. [2023-11-12 02:25:10,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:25:10,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2023-11-12 02:25:10,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:10,523 INFO L225 Difference]: With dead ends: 97 [2023-11-12 02:25:10,523 INFO L226 Difference]: Without dead ends: 48 [2023-11-12 02:25:10,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 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 02:25:10,532 INFO L413 NwaCegarLoop]: 69 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, 69 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 02:25:10,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:10,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-12 02:25:10,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-12 02:25:10,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 02:25:10,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2023-11-12 02:25:10,605 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 91 [2023-11-12 02:25:10,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:10,606 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2023-11-12 02:25:10,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 02:25:10,607 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2023-11-12 02:25:10,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 02:25:10,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:10,615 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:10,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:10,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:25:10,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:10,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash 346815552, now seen corresponding path program 1 times [2023-11-12 02:25:10,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:10,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417276231] [2023-11-12 02:25:10,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:10,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:10,927 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:25:10,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828973805] [2023-11-12 02:25:10,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:10,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:10,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:10,938 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:10,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:25:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 02:25:11,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:11,573 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-12 02:25:11,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:25:12,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:12,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417276231] [2023-11-12 02:25:12,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:25:12,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828973805] [2023-11-12 02:25:12,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828973805] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:25:12,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:25:12,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-12 02:25:12,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591565185] [2023-11-12 02:25:12,182 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-12 02:25:12,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:25:12,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:12,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:25:12,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:25:12,189 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 02:25:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:12,691 INFO L93 Difference]: Finished difference Result 135 states and 188 transitions. [2023-11-12 02:25:12,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 02:25:12,692 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2023-11-12 02:25:12,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:12,694 INFO L225 Difference]: With dead ends: 135 [2023-11-12 02:25:12,695 INFO L226 Difference]: Without dead ends: 90 [2023-11-12 02:25:12,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-11-12 02:25:12,697 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 107 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:12,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 200 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:25:12,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-12 02:25:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2023-11-12 02:25:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 56 states have internal predecessors, (67), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:25:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2023-11-12 02:25:12,730 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 91 [2023-11-12 02:25:12,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:12,731 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2023-11-12 02:25:12,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 02:25:12,732 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2023-11-12 02:25:12,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 02:25:12,734 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:12,734 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:12,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:12,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:12,941 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:12,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:12,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1026873922, now seen corresponding path program 1 times [2023-11-12 02:25:12,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:12,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774862632] [2023-11-12 02:25:12,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:12,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:13,001 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:25:13,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781267761] [2023-11-12 02:25:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:13,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:13,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:13,013 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:13,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:25:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:13,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:25:13,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:13,382 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-12 02:25:13,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:25:13,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:13,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774862632] [2023-11-12 02:25:13,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:25:13,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781267761] [2023-11-12 02:25:13,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781267761] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:25:13,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:25:13,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-12 02:25:13,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867920470] [2023-11-12 02:25:13,688 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-12 02:25:13,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:25:13,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:13,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:25:13,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:25:13,690 INFO L87 Difference]: Start difference. First operand 83 states and 115 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 02:25:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:13,881 INFO L93 Difference]: Finished difference Result 167 states and 231 transitions. [2023-11-12 02:25:13,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:25:13,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2023-11-12 02:25:13,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:13,886 INFO L225 Difference]: With dead ends: 167 [2023-11-12 02:25:13,886 INFO L226 Difference]: Without dead ends: 87 [2023-11-12 02:25:13,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:25:13,889 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 43 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:13,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 154 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:25:13,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-12 02:25:13,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2023-11-12 02:25:13,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.2) internal successors, (66), 56 states have internal predecessors, (66), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:25:13,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 114 transitions. [2023-11-12 02:25:13,905 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 114 transitions. Word has length 91 [2023-11-12 02:25:13,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:13,906 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 114 transitions. [2023-11-12 02:25:13,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 02:25:13,907 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 114 transitions. [2023-11-12 02:25:13,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-12 02:25:13,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:13,909 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:13,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:14,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:14,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:14,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:14,117 INFO L85 PathProgramCache]: Analyzing trace with hash -2078270937, now seen corresponding path program 1 times [2023-11-12 02:25:14,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:14,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803993814] [2023-11-12 02:25:14,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:14,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:14,254 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:25:14,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1539178056] [2023-11-12 02:25:14,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:14,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:14,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:14,264 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:14,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:25:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:25:14,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:25:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:25:14,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:25:14,600 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:25:14,601 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:25:14,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:14,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:14,813 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 02:25:14,817 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:25:14,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:25:14 BoogieIcfgContainer [2023-11-12 02:25:14,953 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:25:14,954 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:25:14,954 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:25:14,954 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:25:14,955 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:09" (3/4) ... [2023-11-12 02:25:14,956 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:25:14,958 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:25:14,958 INFO L158 Benchmark]: Toolchain (without parser) took 6400.16ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 77.7MB in the beginning and 66.5MB in the end (delta: 11.2MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2023-11-12 02:25:14,958 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 123.7MB. Free memory was 96.8MB in the beginning and 96.7MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:25:14,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.84ms. Allocated memory is still 123.7MB. Free memory was 77.7MB in the beginning and 64.3MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:25:14,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.44ms. Allocated memory is still 123.7MB. Free memory was 64.3MB in the beginning and 60.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:25:14,960 INFO L158 Benchmark]: Boogie Preprocessor took 59.35ms. Allocated memory is still 123.7MB. Free memory was 60.9MB in the beginning and 59.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:25:14,960 INFO L158 Benchmark]: RCFGBuilder took 694.82ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 59.3MB in the beginning and 128.4MB in the end (delta: -69.2MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-11-12 02:25:14,961 INFO L158 Benchmark]: TraceAbstraction took 5219.30ms. Allocated memory is still 167.8MB. Free memory was 127.5MB in the beginning and 66.5MB in the end (delta: 61.0MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2023-11-12 02:25:14,961 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 167.8MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:25:14,964 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 123.7MB. Free memory was 96.8MB in the beginning and 96.7MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.84ms. Allocated memory is still 123.7MB. Free memory was 77.7MB in the beginning and 64.3MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.44ms. Allocated memory is still 123.7MB. Free memory was 64.3MB in the beginning and 60.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.35ms. Allocated memory is still 123.7MB. Free memory was 60.9MB in the beginning and 59.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 694.82ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 59.3MB in the beginning and 128.4MB in the end (delta: -69.2MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5219.30ms. Allocated memory is still 167.8MB. Free memory was 127.5MB in the beginning and 66.5MB in the end (delta: 61.0MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 167.8MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 112, overapproximation of someBinaryDOUBLEComparisonOperation at line 112. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_4 = 1; [L24] unsigned char var_1_5 = 1; [L25] unsigned char var_1_6 = 0; [L26] signed char var_1_8 = 64; [L27] signed char var_1_11 = -10; [L28] signed char var_1_12 = 64; [L29] float var_1_13 = 1.6; [L30] float var_1_14 = 3.5; [L31] unsigned char var_1_15 = 8; [L32] unsigned char var_1_16 = 4; [L33] unsigned short int var_1_17 = 2; [L34] unsigned short int var_1_18 = 10000; [L35] signed short int var_1_20 = 4; [L36] signed char var_1_22 = -32; [L37] unsigned long int var_1_23 = 0; [L38] unsigned char last_1_var_1_15 = 8; VAL [isInitial=0, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L116] isInitial = 1 [L117] FCALL initially() [L118] COND TRUE 1 [L119] CALL updateLastVariables() [L109] last_1_var_1_15 = var_1_15 VAL [isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L119] RET updateLastVariables() [L120] CALL updateVariables() [L87] var_1_4 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_4 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L88] RET assume_abort_if_not(var_1_4 >= 1) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L89] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L89] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L90] var_1_5 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_5 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L91] RET assume_abort_if_not(var_1_5 >= 1) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L92] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L92] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=-10, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L93] var_1_11 = __VERIFIER_nondet_char() [L94] CALL assume_abort_if_not(var_1_11 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L94] RET assume_abort_if_not(var_1_11 >= -127) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L95] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L95] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=64, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L96] var_1_12 = __VERIFIER_nondet_char() [L97] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L97] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L98] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L98] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=7/2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L99] var_1_14 = __VERIFIER_nondet_float() [L100] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L100] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=4, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L101] var_1_16 = __VERIFIER_nondet_uchar() [L102] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L102] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L103] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L103] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=10000, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L104] var_1_18 = __VERIFIER_nondet_ushort() [L105] CALL assume_abort_if_not(var_1_18 >= 8192) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L105] RET assume_abort_if_not(var_1_18 >= 8192) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L106] CALL assume_abort_if_not(var_1_18 <= 16384) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L106] RET assume_abort_if_not(var_1_18 <= 16384) VAL [isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L120] RET updateVariables() [L121] CALL step() [L42] unsigned char stepLocal_1 = ! var_1_5; VAL [isInitial=1, last_1_var_1_15=8, stepLocal_1=0, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L43] COND FALSE !(stepLocal_1 || (var_1_12 < last_1_var_1_15)) VAL [isInitial=1, last_1_var_1_15=8, stepLocal_1=0, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L50] COND FALSE !((127.35 + var_1_13) <= var_1_13) VAL [isInitial=1, last_1_var_1_15=8, stepLocal_1=0, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=0, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L55] COND FALSE !((- var_1_13) > 31.9f) [L58] var_1_1 = var_1_5 VAL [isInitial=1, last_1_var_1_15=8, stepLocal_1=0, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=8, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=1, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L60] COND TRUE \read(var_1_1) [L61] var_1_15 = var_1_16 VAL [isInitial=1, last_1_var_1_15=8, stepLocal_1=0, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=254, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=1, var_1_20=4, var_1_22=-32, var_1_23=0, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L63] var_1_22 = 1 [L64] var_1_23 = var_1_22 [L65] unsigned long int stepLocal_0 = var_1_23; VAL [isInitial=1, last_1_var_1_15=8, stepLocal_0=1, stepLocal_1=0, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=254, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=1, var_1_20=4, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=64] [L66] COND TRUE var_1_15 > stepLocal_0 [L67] var_1_8 = ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))) VAL [isInitial=1, last_1_var_1_15=8, stepLocal_0=1, stepLocal_1=0, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=254, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=1, var_1_20=4, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=8] [L69] unsigned char stepLocal_2 = var_1_23 < var_1_15; VAL [isInitial=1, last_1_var_1_15=8, stepLocal_0=1, stepLocal_1=0, stepLocal_2=1, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=254, var_1_16=254, var_1_17=2, var_1_18=8192, var_1_1=1, var_1_20=4, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=8] [L70] COND TRUE var_1_1 || stepLocal_2 [L71] var_1_17 = (var_1_15 + ((var_1_18 - var_1_16) + var_1_15)) VAL [isInitial=1, last_1_var_1_15=8, stepLocal_0=1, stepLocal_1=0, stepLocal_2=1, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=254, var_1_16=254, var_1_17=8446, var_1_18=8192, var_1_1=1, var_1_20=4, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=8] [L75] signed long int stepLocal_3 = -10; VAL [isInitial=1, last_1_var_1_15=8, stepLocal_0=1, stepLocal_1=0, stepLocal_2=1, stepLocal_3=-10, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=254, var_1_16=254, var_1_17=8446, var_1_18=8192, var_1_1=1, var_1_20=4, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=8] [L76] COND FALSE !(((var_1_15 / var_1_18) * var_1_15) < stepLocal_3) VAL [isInitial=1, last_1_var_1_15=8, stepLocal_0=1, stepLocal_1=0, stepLocal_2=1, stepLocal_3=-10, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=254, var_1_16=254, var_1_17=8446, var_1_18=8192, var_1_1=1, var_1_20=4, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=8] [L79] COND FALSE !(! (var_1_17 <= var_1_17)) [L82] var_1_20 = var_1_12 VAL [isInitial=1, last_1_var_1_15=8, stepLocal_0=1, stepLocal_1=0, stepLocal_2=1, stepLocal_3=-10, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=254, var_1_16=254, var_1_17=8446, var_1_18=8192, var_1_1=1, var_1_20=8, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=8] [L121] RET step() [L122] CALL, EXPR property() [L112-L113] return ((((((((((- var_1_13) > 31.9f) ? (var_1_1 == ((unsigned char) ((var_1_6 || var_1_4) && var_1_5))) : (var_1_1 == ((unsigned char) var_1_5))) && (((127.35 + var_1_13) <= var_1_13) ? ((4.5 <= (var_1_13 * var_1_13)) ? (var_1_6 == ((unsigned char) var_1_5)) : 1) : 1)) && ((var_1_15 > var_1_23) ? (var_1_8 == ((signed char) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : 1)) && (((! var_1_5) || (var_1_12 < last_1_var_1_15)) ? ((! var_1_5) ? (var_1_13 == ((float) var_1_14)) : (var_1_13 == ((float) var_1_14))) : 1)) && (var_1_1 ? (var_1_15 == ((unsigned char) var_1_16)) : 1)) && ((var_1_1 || (var_1_23 < var_1_15)) ? (var_1_17 == ((unsigned short int) (var_1_15 + ((var_1_18 - var_1_16) + var_1_15)))) : (var_1_17 == ((unsigned short int) (var_1_16 + var_1_18))))) && ((((var_1_15 / var_1_18) * var_1_15) < -10) ? (var_1_20 == ((signed short int) ((((var_1_15) > (var_1_16)) ? (var_1_15) : (var_1_16))))) : ((! (var_1_17 <= var_1_17)) ? (var_1_20 == ((signed short int) var_1_11)) : (var_1_20 == ((signed short int) var_1_12))))) && (var_1_22 == ((signed char) 1))) && (var_1_23 == ((unsigned long int) var_1_22)) ; VAL [\result=0, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=254, var_1_16=254, var_1_17=8446, var_1_18=8192, var_1_1=1, var_1_20=8, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=8] [L122] RET, EXPR property() [L122] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=254, var_1_16=254, var_1_17=8446, var_1_18=8192, var_1_1=1, var_1_20=8, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=8] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=8, var_1_11=8, var_1_12=8, var_1_13=8/5, var_1_14=2, var_1_15=254, var_1_16=254, var_1_17=8446, var_1_18=8192, var_1_1=1, var_1_20=8, var_1_22=1, var_1_23=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_8=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 183 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 423 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 253 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 321 IncrementalHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 170 mSDtfsCounter, 321 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 315 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=2, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 456 NumberOfCodeBlocks, 456 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 270 ConstructedInterpolants, 0 QuantifiedInterpolants, 453 SizeOfPredicates, 12 NumberOfNonLiveVariables, 718 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 930/936 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 02:25:14,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-41.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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_69a5e901-a9de-4b49-bba0-4407b68a9b49/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 1605b160926a78e1fde223527934d14da473f0110a1b5b03b3aa4225b20b34fa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:25:17,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:25:17,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:25:17,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:25:17,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:25:17,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:25:17,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:25:17,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:25:17,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:25:17,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:25:17,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:25:17,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:25:17,928 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:25:17,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:25:17,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:25:17,931 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:25:17,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:25:17,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:25:17,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:25:17,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:25:17,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:25:17,935 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:25:17,936 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:25:17,937 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:25:17,937 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:25:17,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:25:17,938 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:25:17,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:25:17,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:25:17,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:25:17,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:17,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:25:17,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:25:17,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:25:17,942 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:25:17,943 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:25:17,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:25:17,943 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:25:17,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:25:17,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:25:17,944 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:25:17,944 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:25:17,944 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_69a5e901-a9de-4b49-bba0-4407b68a9b49/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1605b160926a78e1fde223527934d14da473f0110a1b5b03b3aa4225b20b34fa [2023-11-12 02:25:18,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:25:18,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:25:18,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:25:18,442 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:25:18,443 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:25:18,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-41.i [2023-11-12 02:25:21,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:25:22,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:25:22,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-41.i [2023-11-12 02:25:22,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/data/241891c94/7bd8776d7b1f426a992451b43c8c95c3/FLAGe603b0ca2 [2023-11-12 02:25:22,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/data/241891c94/7bd8776d7b1f426a992451b43c8c95c3 [2023-11-12 02:25:22,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:25:22,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:25:22,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:22,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:25:22,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:25:22,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dfe3967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22, skipping insertion in model container [2023-11-12 02:25:22,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,132 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:25:22,335 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_69a5e901-a9de-4b49-bba0-4407b68a9b49/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-41.i[913,926] [2023-11-12 02:25:22,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:22,425 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:25:22,440 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_69a5e901-a9de-4b49-bba0-4407b68a9b49/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-41.i[913,926] [2023-11-12 02:25:22,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:22,491 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:25:22,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22 WrapperNode [2023-11-12 02:25:22,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:22,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:22,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:25:22,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:25:22,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,580 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2023-11-12 02:25:22,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:22,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:25:22,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:25:22,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:25:22,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,653 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:25:22,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:25:22,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:25:22,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:25:22,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:22,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:22,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:25:22,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:25:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:25:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:25:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:25:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:25:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:25:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:25:22,892 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:25:22,895 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:25:27,450 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:25:27,459 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:25:27,459 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:25:27,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:27 BoogieIcfgContainer [2023-11-12 02:25:27,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:25:27,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:25:27,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:25:27,470 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:25:27,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:25:22" (1/3) ... [2023-11-12 02:25:27,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667e5ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:27, skipping insertion in model container [2023-11-12 02:25:27,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (2/3) ... [2023-11-12 02:25:27,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667e5ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:27, skipping insertion in model container [2023-11-12 02:25:27,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:27" (3/3) ... [2023-11-12 02:25:27,474 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-41.i [2023-11-12 02:25:27,497 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:25:27,498 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:25:27,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:25:27,571 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;@23a34665, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:25:27,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:25:27,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 02:25:27,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 02:25:27,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:27,594 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:27,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:27,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:27,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1457831294, now seen corresponding path program 1 times [2023-11-12 02:25:27,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:25:27,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513887162] [2023-11-12 02:25:27,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:27,617 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 02:25:27,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:25:27,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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 02:25:27,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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 02:25:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:28,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:25:28,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:28,280 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-12 02:25:28,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:25:28,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:25:28,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513887162] [2023-11-12 02:25:28,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513887162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:28,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:28,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:25:28,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605379727] [2023-11-12 02:25:28,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:28,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:25:28,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:25:28,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:25:28,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:25:28,350 INFO L87 Difference]: Start difference. First operand has 52 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 02:25:28,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:28,412 INFO L93 Difference]: Finished difference Result 97 states and 161 transitions. [2023-11-12 02:25:28,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:25:28,415 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2023-11-12 02:25:28,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:28,428 INFO L225 Difference]: With dead ends: 97 [2023-11-12 02:25:28,429 INFO L226 Difference]: Without dead ends: 48 [2023-11-12 02:25:28,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 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 02:25:28,440 INFO L413 NwaCegarLoop]: 69 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, 69 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 02:25:28,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:28,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-12 02:25:28,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-12 02:25:28,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 02:25:28,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2023-11-12 02:25:28,511 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 91 [2023-11-12 02:25:28,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:28,512 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2023-11-12 02:25:28,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 02:25:28,514 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2023-11-12 02:25:28,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 02:25:28,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:28,525 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:28,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:28,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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 02:25:28,740 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:28,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:28,741 INFO L85 PathProgramCache]: Analyzing trace with hash 346815552, now seen corresponding path program 1 times [2023-11-12 02:25:28,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:25:28,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480491456] [2023-11-12 02:25:28,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:28,743 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 02:25:28,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:25:28,772 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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 02:25:28,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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 02:25:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:29,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:25:29,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:29,690 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-12 02:25:29,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:25:29,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:25:29,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480491456] [2023-11-12 02:25:29,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480491456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:29,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:29,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:29,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006673628] [2023-11-12 02:25:29,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:29,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:25:29,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:25:29,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:25:29,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:25:29,696 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 02:25:31,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:25:32,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:25:32,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:32,706 INFO L93 Difference]: Finished difference Result 103 states and 143 transitions. [2023-11-12 02:25:32,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:25:32,734 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2023-11-12 02:25:32,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:32,737 INFO L225 Difference]: With dead ends: 103 [2023-11-12 02:25:32,737 INFO L226 Difference]: Without dead ends: 58 [2023-11-12 02:25:32,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:25:32,740 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 78 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:32,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 156 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-12 02:25:32,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-12 02:25:32,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2023-11-12 02:25:32,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 02:25:32,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 74 transitions. [2023-11-12 02:25:32,767 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 74 transitions. Word has length 91 [2023-11-12 02:25:32,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:32,771 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 74 transitions. [2023-11-12 02:25:32,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 02:25:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 74 transitions. [2023-11-12 02:25:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-12 02:25:32,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:32,776 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:32,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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 02:25:32,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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 02:25:32,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:32,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:32,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2078270937, now seen corresponding path program 1 times [2023-11-12 02:25:32,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:25:32,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903671133] [2023-11-12 02:25:32,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:32,998 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 02:25:32,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:25:33,000 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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 02:25:33,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69a5e901-a9de-4b49-bba0-4407b68a9b49/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 02:25:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:33,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-12 02:25:33,594 INFO L285 TraceCheckSpWp]: Computing forward predicates...