./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 2b49dec271465b2754e36573ebd59f8c437d77cb6b6af58205c53363f2448e6a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:08:08,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:08:08,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 23:08:08,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:08:08,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:08:08,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:08:08,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:08:08,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:08:08,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:08:08,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:08:08,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:08:08,958 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:08:08,958 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:08:08,959 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:08:08,959 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:08:08,960 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:08:08,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:08:08,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:08:08,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:08:08,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:08:08,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:08:08,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:08:08,964 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:08:08,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:08:08,966 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:08:08,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:08:08,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:08:08,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:08:08,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:08:08,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:08:08,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:08:08,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:08:08,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:08:08,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:08:08,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:08:08,971 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:08:08,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:08:08,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:08:08,972 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:08:08,972 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_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b49dec271465b2754e36573ebd59f8c437d77cb6b6af58205c53363f2448e6a [2023-11-06 23:08:09,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:08:09,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:08:09,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:08:09,233 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:08:09,233 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:08:09,235 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i [2023-11-06 23:08:12,327 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:08:12,578 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:08:12,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i [2023-11-06 23:08:12,588 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/data/cb7e7f98f/1972536b66af4bf0a40778b32868c9a1/FLAG85508afa0 [2023-11-06 23:08:12,613 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/data/cb7e7f98f/1972536b66af4bf0a40778b32868c9a1 [2023-11-06 23:08:12,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:08:12,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:08:12,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:12,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:08:12,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:08:12,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:12" (1/1) ... [2023-11-06 23:08:12,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277b8d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:12, skipping insertion in model container [2023-11-06 23:08:12,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:12" (1/1) ... [2023-11-06 23:08:12,681 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:08:12,866 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_62174c87-0f8c-4a48-b212-8e4b37fe9232/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i[915,928] [2023-11-06 23:08:12,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:12,932 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:08:12,945 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_62174c87-0f8c-4a48-b212-8e4b37fe9232/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i[915,928] [2023-11-06 23:08:12,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:13,003 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:08:13,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13 WrapperNode [2023-11-06 23:08:13,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:13,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:13,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:08:13,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:08:13,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (1/1) ... [2023-11-06 23:08:13,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (1/1) ... [2023-11-06 23:08:13,070 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-06 23:08:13,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:13,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:08:13,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:08:13,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:08:13,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (1/1) ... [2023-11-06 23:08:13,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (1/1) ... [2023-11-06 23:08:13,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (1/1) ... [2023-11-06 23:08:13,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (1/1) ... [2023-11-06 23:08:13,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (1/1) ... [2023-11-06 23:08:13,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (1/1) ... [2023-11-06 23:08:13,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (1/1) ... [2023-11-06 23:08:13,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (1/1) ... [2023-11-06 23:08:13,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:08:13,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:08:13,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:08:13,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:08:13,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (1/1) ... [2023-11-06 23:08:13,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:08:13,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:13,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:08:13,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:08:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:08:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 23:08:13,202 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 23:08:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:08:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:08:13,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:08:13,330 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:08:13,332 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:08:13,716 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:08:13,723 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:08:13,723 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:08:13,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:13 BoogieIcfgContainer [2023-11-06 23:08:13,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:08:13,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:08:13,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:08:13,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:08:13,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:08:12" (1/3) ... [2023-11-06 23:08:13,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c934c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:13, skipping insertion in model container [2023-11-06 23:08:13,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:13" (2/3) ... [2023-11-06 23:08:13,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c934c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:13, skipping insertion in model container [2023-11-06 23:08:13,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:13" (3/3) ... [2023-11-06 23:08:13,755 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-52.i [2023-11-06 23:08:13,772 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:08:13,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:08:13,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:08:13,830 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=LoopsAndPotentialCycles, 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;@4f6617d1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:08:13,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:08:13,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 23:08:13,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 23:08:13,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:13,859 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:13,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:13,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:13,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1915705130, now seen corresponding path program 1 times [2023-11-06 23:08:13,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:13,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527506095] [2023-11-06 23:08:13,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:13,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 23:08:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 23:08:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 23:08:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-06 23:08:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 23:08:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-06 23:08:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 23:08:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 23:08:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 23:08:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 23:08:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-06 23:08:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 23:08:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-06 23:08:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:08:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 23:08:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-06 23:08:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 23:08:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-06 23:08:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,289 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-06 23:08:15,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:15,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527506095] [2023-11-06 23:08:15,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527506095] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:08:15,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555650534] [2023-11-06 23:08:15,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:15,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:08:15,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:15,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:08:15,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:08:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:15,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 23:08:15,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 317 proven. 21 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-06 23:08:15,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:08:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-06 23:08:16,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555650534] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:08:16,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:08:16,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-11-06 23:08:16,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565852268] [2023-11-06 23:08:16,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:08:16,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 23:08:16,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:16,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 23:08:16,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-06 23:08:16,264 INFO L87 Difference]: Start difference. First operand has 52 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-11-06 23:08:17,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:17,389 INFO L93 Difference]: Finished difference Result 202 states and 355 transitions. [2023-11-06 23:08:17,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-06 23:08:17,392 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 113 [2023-11-06 23:08:17,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:17,403 INFO L225 Difference]: With dead ends: 202 [2023-11-06 23:08:17,404 INFO L226 Difference]: Without dead ends: 153 [2023-11-06 23:08:17,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=302, Invalid=888, Unknown=0, NotChecked=0, Total=1190 [2023-11-06 23:08:17,413 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 123 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:17,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 295 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 23:08:17,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-06 23:08:17,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 101. [2023-11-06 23:08:17,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 59 states have (on average 1.1355932203389831) internal successors, (67), 60 states have internal predecessors, (67), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-06 23:08:17,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 139 transitions. [2023-11-06 23:08:17,498 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 139 transitions. Word has length 113 [2023-11-06 23:08:17,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:17,500 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 139 transitions. [2023-11-06 23:08:17,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-11-06 23:08:17,500 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 139 transitions. [2023-11-06 23:08:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 23:08:17,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:17,505 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:17,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:17,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 23:08:17,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:17,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:17,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1106358504, now seen corresponding path program 1 times [2023-11-06 23:08:17,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:17,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198461315] [2023-11-06 23:08:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:17,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:08:17,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:08:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:08:18,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:08:18,011 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:08:18,012 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 23:08:18,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:08:18,025 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 23:08:18,030 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:08:18,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:08:18 BoogieIcfgContainer [2023-11-06 23:08:18,158 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:08:18,159 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:08:18,160 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:08:18,160 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:08:18,160 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:13" (3/4) ... [2023-11-06 23:08:18,163 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 23:08:18,164 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:08:18,165 INFO L158 Benchmark]: Toolchain (without parser) took 5540.33ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 126.0MB in the beginning and 160.4MB in the end (delta: -34.5MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2023-11-06 23:08:18,165 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:08:18,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.22ms. Allocated memory is still 169.9MB. Free memory was 125.6MB in the beginning and 113.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 23:08:18,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.56ms. Allocated memory is still 169.9MB. Free memory was 113.1MB in the beginning and 109.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:08:18,176 INFO L158 Benchmark]: Boogie Preprocessor took 34.38ms. Allocated memory is still 169.9MB. Free memory was 109.9MB in the beginning and 108.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:08:18,177 INFO L158 Benchmark]: RCFGBuilder took 620.12ms. Allocated memory is still 169.9MB. Free memory was 108.1MB in the beginning and 91.4MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 23:08:18,178 INFO L158 Benchmark]: TraceAbstraction took 4411.70ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 141.2MB in the beginning and 160.4MB in the end (delta: -19.3MB). Peak memory consumption was 96.9MB. Max. memory is 16.1GB. [2023-11-06 23:08:18,178 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 205.5MB. Free memory is still 160.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:08:18,184 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.22ms. Allocated memory is still 169.9MB. Free memory was 125.6MB in the beginning and 113.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.56ms. Allocated memory is still 169.9MB. Free memory was 113.1MB in the beginning and 109.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.38ms. Allocated memory is still 169.9MB. Free memory was 109.9MB in the beginning and 108.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 620.12ms. Allocated memory is still 169.9MB. Free memory was 108.1MB in the beginning and 91.4MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4411.70ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 141.2MB in the beginning and 160.4MB in the end (delta: -19.3MB). Peak memory consumption was 96.9MB. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 205.5MB. Free memory is still 160.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 92. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -4; [L23] double var_1_2 = 255.6; [L24] unsigned char var_1_5 = 1; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 0; [L28] unsigned char var_1_9 = 8; [L29] double var_1_10 = 255.2; [L30] unsigned char var_1_11 = 64; [L31] unsigned char var_1_12 = 100; [L32] unsigned char var_1_13 = 32; [L33] unsigned char var_1_14 = 64; [L34] unsigned char var_1_15 = 0; VAL [isInitial=0, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_2=1278/5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L96] isInitial = 1 [L97] FCALL initially() [L98] COND TRUE 1 [L99] FCALL updateLastVariables() [L100] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_double() [L61] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L61] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L62] var_1_6 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L63] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L64] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L64] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L65] var_1_7 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L66] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L67] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L67] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L68] var_1_8 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L69] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L70] CALL assume_abort_if_not(var_1_8 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L70] RET assume_abort_if_not(var_1_8 <= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L71] var_1_10 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=517, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=517, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L72] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=517, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L73] var_1_11 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_11 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L74] RET assume_abort_if_not(var_1_11 >= 63) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L75] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L75] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L76] var_1_12 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_12 >= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L77] RET assume_abort_if_not(var_1_12 >= 64) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L78] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L78] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L79] var_1_13 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L80] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L81] CALL assume_abort_if_not(var_1_13 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L81] RET assume_abort_if_not(var_1_13 <= 127) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L82] var_1_14 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L84] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L84] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L85] var_1_15 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L86] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L87] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L87] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L100] RET updateVariables() [L101] CALL step() [L38] COND TRUE (- var_1_2) <= var_1_10 [L39] var_1_9 = ((((((var_1_11 + var_1_12) - var_1_13)) < ((var_1_14 + var_1_15))) ? (((var_1_11 + var_1_12) - var_1_13)) : ((var_1_14 + var_1_15)))) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] [L43] COND TRUE var_1_2 < 63.75 [L44] var_1_1 = (10 - var_1_9) VAL [isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] [L48] signed long int stepLocal_0 = (var_1_9 / -256) * 32; VAL [isInitial=1, stepLocal_0=0, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] [L49] COND FALSE !(var_1_9 > stepLocal_0) [L56] var_1_5 = var_1_7 VAL [isInitial=1, stepLocal_0=0, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] [L101] RET step() [L102] CALL, EXPR property() [L92-L93] return (((var_1_2 < 63.75) ? (var_1_1 == ((signed short int) (10 - var_1_9))) : (var_1_1 == ((signed short int) (4 + var_1_9)))) && ((var_1_9 > ((var_1_9 / -256) * 32)) ? (var_1_6 ? (var_1_5 == ((unsigned char) (! (var_1_7 && (! var_1_8))))) : (var_1_5 == ((unsigned char) var_1_7))) : (var_1_5 == ((unsigned char) var_1_7)))) && (((- var_1_2) <= var_1_10) ? (var_1_9 == ((unsigned char) ((((((var_1_11 + var_1_12) - var_1_13)) < ((var_1_14 + var_1_15))) ? (((var_1_11 + var_1_12) - var_1_13)) : ((var_1_14 + var_1_15)))))) : (var_1_9 == ((unsigned char) var_1_12))) ; VAL [\result=0, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] [L102] RET, EXPR property() [L102] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=517, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 2, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 295 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 215 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 463 IncrementalHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 80 mSDtfsCounter, 463 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 291 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=1, InterpolantAutomatonStates: 28, 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, 1 MinimizatonAttempts, 52 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 336 ConstructedInterpolants, 0 QuantifiedInterpolants, 1078 SizeOfPredicates, 5 NumberOfNonLiveVariables, 259 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 1773/1836 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 [2023-11-06 23:08:18,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 2b49dec271465b2754e36573ebd59f8c437d77cb6b6af58205c53363f2448e6a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:08:20,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:08:20,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 23:08:20,941 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:08:20,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:08:20,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:08:20,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:08:20,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:08:20,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:08:20,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:08:20,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:08:20,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:08:20,976 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:08:20,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:08:20,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:08:20,978 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:08:20,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:08:20,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:08:20,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:08:20,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:08:20,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:08:20,982 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:08:20,982 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 23:08:20,983 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 23:08:20,984 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:08:20,984 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:08:20,985 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:08:20,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:08:20,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:08:20,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:08:20,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:08:20,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:08:20,988 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:08:20,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:08:20,989 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 23:08:20,989 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 23:08:20,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:08:20,990 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:08:20,991 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:08:20,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:08:20,992 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 23:08:20,992 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:08:20,993 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_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b49dec271465b2754e36573ebd59f8c437d77cb6b6af58205c53363f2448e6a [2023-11-06 23:08:21,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:08:21,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:08:21,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:08:21,391 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:08:21,391 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:08:21,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i [2023-11-06 23:08:24,502 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:08:24,830 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:08:24,830 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i [2023-11-06 23:08:24,840 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/data/318d4b607/55bb29799e4b4565a824497593b687b7/FLAGedf27aaf7 [2023-11-06 23:08:24,860 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/data/318d4b607/55bb29799e4b4565a824497593b687b7 [2023-11-06 23:08:24,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:08:24,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:08:24,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:24,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:08:24,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:08:24,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:24" (1/1) ... [2023-11-06 23:08:24,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd131da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:24, skipping insertion in model container [2023-11-06 23:08:24,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:24" (1/1) ... [2023-11-06 23:08:24,931 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:08:25,142 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_62174c87-0f8c-4a48-b212-8e4b37fe9232/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i[915,928] [2023-11-06 23:08:25,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:25,231 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:08:25,243 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_62174c87-0f8c-4a48-b212-8e4b37fe9232/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i[915,928] [2023-11-06 23:08:25,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:25,281 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:08:25,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25 WrapperNode [2023-11-06 23:08:25,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:25,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:25,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:08:25,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:08:25,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (1/1) ... [2023-11-06 23:08:25,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (1/1) ... [2023-11-06 23:08:25,335 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-06 23:08:25,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:25,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:08:25,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:08:25,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:08:25,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (1/1) ... [2023-11-06 23:08:25,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (1/1) ... [2023-11-06 23:08:25,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (1/1) ... [2023-11-06 23:08:25,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (1/1) ... [2023-11-06 23:08:25,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (1/1) ... [2023-11-06 23:08:25,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (1/1) ... [2023-11-06 23:08:25,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (1/1) ... [2023-11-06 23:08:25,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (1/1) ... [2023-11-06 23:08:25,380 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:08:25,381 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:08:25,382 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:08:25,382 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:08:25,383 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (1/1) ... [2023-11-06 23:08:25,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:08:25,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:25,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:08:25,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:08:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:08:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 23:08:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 23:08:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 23:08:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:08:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:08:25,556 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:08:25,559 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:08:25,859 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:08:25,866 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:08:25,866 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:08:25,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:25 BoogieIcfgContainer [2023-11-06 23:08:25,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:08:25,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:08:25,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:08:25,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:08:25,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:08:24" (1/3) ... [2023-11-06 23:08:25,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cb9113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:25, skipping insertion in model container [2023-11-06 23:08:25,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:25" (2/3) ... [2023-11-06 23:08:25,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cb9113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:25, skipping insertion in model container [2023-11-06 23:08:25,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:25" (3/3) ... [2023-11-06 23:08:25,886 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-52.i [2023-11-06 23:08:25,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:08:25,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:08:25,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:08:25,996 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=LoopsAndPotentialCycles, 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;@61375c19, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:08:25,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:08:26,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 23:08:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 23:08:26,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:26,026 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:26,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:26,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:26,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1915705130, now seen corresponding path program 1 times [2023-11-06 23:08:26,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:26,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110517617] [2023-11-06 23:08:26,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:26,051 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 [2023-11-06 23:08:26,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:26,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:26,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:26,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 23:08:26,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-06 23:08:27,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:08:27,573 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-06 23:08:27,574 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:27,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110517617] [2023-11-06 23:08:27,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110517617] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:08:27,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:08:27,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2023-11-06 23:08:27,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615163092] [2023-11-06 23:08:27,579 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:08:27,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-06 23:08:27,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:27,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 23:08:27,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-06 23:08:27,636 INFO L87 Difference]: Start difference. First operand has 52 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-06 23:08:29,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:29,297 INFO L93 Difference]: Finished difference Result 208 states and 360 transitions. [2023-11-06 23:08:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-06 23:08:29,300 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 113 [2023-11-06 23:08:29,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:29,313 INFO L225 Difference]: With dead ends: 208 [2023-11-06 23:08:29,313 INFO L226 Difference]: Without dead ends: 159 [2023-11-06 23:08:29,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=390, Invalid=1170, Unknown=0, NotChecked=0, Total=1560 [2023-11-06 23:08:29,323 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 125 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:29,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 306 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 23:08:29,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-06 23:08:29,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 59. [2023-11-06 23:08:29,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 23:08:29,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 79 transitions. [2023-11-06 23:08:29,402 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 79 transitions. Word has length 113 [2023-11-06 23:08:29,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:29,403 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 79 transitions. [2023-11-06 23:08:29,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-06 23:08:29,404 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 79 transitions. [2023-11-06 23:08:29,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 23:08:29,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:29,408 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:29,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:29,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:29,624 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:29,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:29,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1106358504, now seen corresponding path program 1 times [2023-11-06 23:08:29,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:29,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534516036] [2023-11-06 23:08:29,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:29,627 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 [2023-11-06 23:08:29,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:29,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:29,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:29,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 23:08:29,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:58,266 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 23:08:58,267 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:58,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:58,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534516036] [2023-11-06 23:08:58,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534516036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:58,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:58,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 23:08:58,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497417505] [2023-11-06 23:08:58,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:58,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:08:58,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:58,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:08:58,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:08:58,272 INFO L87 Difference]: Start difference. First operand 59 states and 79 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 23:09:00,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:00,128 INFO L93 Difference]: Finished difference Result 131 states and 180 transitions. [2023-11-06 23:09:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 23:09:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2023-11-06 23:09:00,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:00,132 INFO L225 Difference]: With dead ends: 131 [2023-11-06 23:09:00,132 INFO L226 Difference]: Without dead ends: 129 [2023-11-06 23:09:00,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2023-11-06 23:09:00,135 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 63 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:00,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 502 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-06 23:09:00,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-06 23:09:00,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 64. [2023-11-06 23:09:00,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 23:09:00,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2023-11-06 23:09:00,156 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 113 [2023-11-06 23:09:00,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:00,157 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2023-11-06 23:09:00,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 23:09:00,158 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2023-11-06 23:09:00,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 23:09:00,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:00,161 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:00,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-06 23:09:00,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:09:00,375 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:09:00,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:00,376 INFO L85 PathProgramCache]: Analyzing trace with hash 668648858, now seen corresponding path program 1 times [2023-11-06 23:09:00,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:09:00,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289664422] [2023-11-06 23:09:00,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:00,377 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 [2023-11-06 23:09:00,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:09:00,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:09:00,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:09:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:00,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 23:09:00,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:25,140 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 23:09:25,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:25,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:09:25,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289664422] [2023-11-06 23:09:25,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289664422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:25,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:25,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 23:09:25,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407749314] [2023-11-06 23:09:25,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:25,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:09:25,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:09:25,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:09:25,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:09:25,145 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 23:09:27,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:27,580 INFO L93 Difference]: Finished difference Result 135 states and 184 transitions. [2023-11-06 23:09:27,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 23:09:27,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2023-11-06 23:09:27,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:27,585 INFO L225 Difference]: With dead ends: 135 [2023-11-06 23:09:27,585 INFO L226 Difference]: Without dead ends: 133 [2023-11-06 23:09:27,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2023-11-06 23:09:27,589 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 57 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:27,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 590 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-06 23:09:27,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-06 23:09:27,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 62. [2023-11-06 23:09:27,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.15) internal successors, (46), 40 states have internal predecessors, (46), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 23:09:27,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2023-11-06 23:09:27,610 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 113 [2023-11-06 23:09:27,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:27,611 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2023-11-06 23:09:27,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 23:09:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2023-11-06 23:09:27,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-06 23:09:27,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:27,614 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:27,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:27,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:09:27,821 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:09:27,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:27,822 INFO L85 PathProgramCache]: Analyzing trace with hash 508969851, now seen corresponding path program 1 times [2023-11-06 23:09:27,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:09:27,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451091037] [2023-11-06 23:09:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:27,823 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 [2023-11-06 23:09:27,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:09:27,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:09:27,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 23:09:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:27,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-06 23:09:27,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-06 23:09:51,115 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:10:55,135 WARN L293 SmtUtils]: Spent 12.75s on a formula simplification. DAG size of input: 212 DAG size of output: 208 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 23:11:09,793 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-06 23:11:09,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:11:09,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451091037] [2023-11-06 23:11:09,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451091037] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 23:11:09,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:11:09,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2023-11-06 23:11:09,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597311929] [2023-11-06 23:11:09,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:11:09,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:11:09,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:11:09,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:11:09,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2023-11-06 23:11:09,799 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 23:11:17,300 WARN L293 SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 23:11:31,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:11:31,086 INFO L93 Difference]: Finished difference Result 143 states and 192 transitions. [2023-11-06 23:11:31,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 23:11:31,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2023-11-06 23:11:31,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:11:31,091 INFO L225 Difference]: With dead ends: 143 [2023-11-06 23:11:31,091 INFO L226 Difference]: Without dead ends: 141 [2023-11-06 23:11:31,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 35.9s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2023-11-06 23:11:31,093 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 67 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:11:31,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 522 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-06 23:11:31,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-06 23:11:31,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 65. [2023-11-06 23:11:31,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 23:11:31,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 86 transitions. [2023-11-06 23:11:31,123 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 86 transitions. Word has length 114 [2023-11-06 23:11:31,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:11:31,124 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 86 transitions. [2023-11-06 23:11:31,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-06 23:11:31,124 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions. [2023-11-06 23:11:31,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-06 23:11:31,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:11:31,127 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:11:31,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 23:11:31,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:11:31,333 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:11:31,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:11:31,334 INFO L85 PathProgramCache]: Analyzing trace with hash 507122809, now seen corresponding path program 1 times [2023-11-06 23:11:31,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:11:31,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637715305] [2023-11-06 23:11:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:11:31,335 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 [2023-11-06 23:11:31,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:11:31,337 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:11:31,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62174c87-0f8c-4a48-b212-8e4b37fe9232/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 23:11:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:11:31,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-06 23:11:31,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:11:59,106 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-06 23:11:59,107 INFO L327 TraceCheckSpWp]: Computing backward predicates...