./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 b4d60c093ba6c9dcaff9815fcaab264eab148dbcfff5c12da0f56175eb222a22 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 13:55:43,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:55:43,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:55:43,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:55:43,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:55:43,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:55:43,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:55:43,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:55:43,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:55:43,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:55:43,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:55:43,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:55:43,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:55:43,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:55:43,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:55:43,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:55:43,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:55:43,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:55:43,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:55:43,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:55:43,190 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:55:43,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:55:43,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:55:43,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:55:43,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:55:43,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:55:43,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:55:43,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:55:43,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:55:43,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:55:43,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:55:43,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:55:43,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:55:43,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:55:43,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:55:43,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:55:43,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:55:43,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:55:43,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:55:43,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:55:43,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:55:43,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:55:43,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 13:55:43,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:55:43,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:55:43,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:55:43,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:55:43,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:55:43,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:55:43,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:55:43,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:55:43,227 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:55:43,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:55:43,228 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:55:43,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 13:55:43,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:55:43,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:55:43,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:55:43,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:55:43,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:55:43,229 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:55:43,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:55:43,230 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:55:43,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:55:43,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:55:43,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:55:43,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:55:43,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:55:43,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:55:43,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:55:43,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:55:43,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 13:55:43,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 13:55:43,232 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:55:43,232 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:55:43,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:55:43,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4d60c093ba6c9dcaff9815fcaab264eab148dbcfff5c12da0f56175eb222a22 [2022-07-22 13:55:43,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:55:43,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:55:43,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:55:43,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:55:43,428 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:55:43,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2022-07-22 13:55:43,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36dcd4dbf/c1a1eb4e36a24b92bb96899fab6b149a/FLAG57491ca37 [2022-07-22 13:55:43,869 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:55:43,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2022-07-22 13:55:43,875 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36dcd4dbf/c1a1eb4e36a24b92bb96899fab6b149a/FLAG57491ca37 [2022-07-22 13:55:43,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36dcd4dbf/c1a1eb4e36a24b92bb96899fab6b149a [2022-07-22 13:55:43,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:55:43,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:55:43,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:55:43,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:55:43,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:55:43,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:55:43" (1/1) ... [2022-07-22 13:55:43,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6692c7e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:43, skipping insertion in model container [2022-07-22 13:55:43,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:55:43" (1/1) ... [2022-07-22 13:55:43,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:55:43,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:55:44,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[1494,1507] [2022-07-22 13:55:44,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[2698,2711] [2022-07-22 13:55:44,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:55:44,047 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:55:44,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[1494,1507] [2022-07-22 13:55:44,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[2698,2711] [2022-07-22 13:55:44,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:55:44,072 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:55:44,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44 WrapperNode [2022-07-22 13:55:44,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:55:44,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:55:44,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:55:44,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:55:44,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44" (1/1) ... [2022-07-22 13:55:44,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44" (1/1) ... [2022-07-22 13:55:44,095 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 150 [2022-07-22 13:55:44,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:55:44,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:55:44,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:55:44,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:55:44,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44" (1/1) ... [2022-07-22 13:55:44,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44" (1/1) ... [2022-07-22 13:55:44,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44" (1/1) ... [2022-07-22 13:55:44,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44" (1/1) ... [2022-07-22 13:55:44,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44" (1/1) ... [2022-07-22 13:55:44,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44" (1/1) ... [2022-07-22 13:55:44,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44" (1/1) ... [2022-07-22 13:55:44,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:55:44,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:55:44,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:55:44,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:55:44,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44" (1/1) ... [2022-07-22 13:55:44,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:55:44,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:55:44,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 13:55:44,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 13:55:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:55:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 13:55:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:55:44,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:55:44,223 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:55:44,225 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:55:44,346 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 13:55:44,350 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 13:55:44,350 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 13:55:44,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:55:44 BoogieIcfgContainer [2022-07-22 13:55:44,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 13:55:44,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 13:55:44,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 13:55:44,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 13:55:44,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:55:43" (1/3) ... [2022-07-22 13:55:44,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504896e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:55:44, skipping insertion in model container [2022-07-22 13:55:44,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:44" (2/3) ... [2022-07-22 13:55:44,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504896e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:55:44, skipping insertion in model container [2022-07-22 13:55:44,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:55:44" (3/3) ... [2022-07-22 13:55:44,357 INFO L111 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.v+lhb-reducer.c [2022-07-22 13:55:44,383 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 13:55:44,384 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-22 13:55:44,447 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 13:55:44,453 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@60ff953f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7b801fbc [2022-07-22 13:55:44,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-22 13:55:44,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:55:44,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 13:55:44,472 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:55:44,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:55:44,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:55:44,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:55:44,485 INFO L85 PathProgramCache]: Analyzing trace with hash 346658074, now seen corresponding path program 1 times [2022-07-22 13:55:44,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 13:55:44,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019537005] [2022-07-22 13:55:44,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:55:44,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 13:55:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:55:44,561 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 13:55:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:55:44,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 13:55:44,587 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 13:55:44,588 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-22 13:55:44,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-22 13:55:44,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 13:55:44,603 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 13:55:44,606 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 13:55:44,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 01:55:44 BoogieIcfgContainer [2022-07-22 13:55:44,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 13:55:44,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 13:55:44,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 13:55:44,650 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 13:55:44,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:55:44" (3/4) ... [2022-07-22 13:55:44,655 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 13:55:44,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 13:55:44,661 INFO L158 Benchmark]: Toolchain (without parser) took 769.14ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 68.5MB in the end (delta: 1.4MB). Peak memory consumption was 567.9kB. Max. memory is 16.1GB. [2022-07-22 13:55:44,663 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:55:44,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.20ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 67.3MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 13:55:44,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.59ms. Allocated memory is still 94.4MB. Free memory was 67.3MB in the beginning and 65.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:55:44,665 INFO L158 Benchmark]: Boogie Preprocessor took 24.09ms. Allocated memory is still 94.4MB. Free memory was 65.8MB in the beginning and 64.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:55:44,668 INFO L158 Benchmark]: RCFGBuilder took 231.00ms. Allocated memory is still 94.4MB. Free memory was 64.3MB in the beginning and 52.8MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 13:55:44,669 INFO L158 Benchmark]: TraceAbstraction took 295.29ms. Allocated memory is still 94.4MB. Free memory was 52.2MB in the beginning and 68.9MB in the end (delta: -16.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-07-22 13:55:44,669 INFO L158 Benchmark]: Witness Printer took 5.26ms. Allocated memory is still 94.4MB. Free memory was 68.8MB in the beginning and 68.5MB in the end (delta: 299.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:55:44,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.20ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 67.3MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.59ms. Allocated memory is still 94.4MB. Free memory was 67.3MB in the beginning and 65.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.09ms. Allocated memory is still 94.4MB. Free memory was 65.8MB in the beginning and 64.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 231.00ms. Allocated memory is still 94.4MB. Free memory was 64.3MB in the beginning and 52.8MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 295.29ms. Allocated memory is still 94.4MB. Free memory was 52.2MB in the beginning and 68.9MB in the end (delta: -16.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Witness Printer took 5.26ms. Allocated memory is still 94.4MB. Free memory was 68.8MB in the beginning and 68.5MB in the end (delta: 299.7kB). 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: 67]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of to_real at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 51. Possible FailurePath: [L1] int __return_main; [L12] int __tmp_160_0; [L13] int __tmp_160_1; [L14] int __tmp_160_2; [L15] int __return_165; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L18] float main__X; [L19] float main__Y; [L20] float main__S; [L21] float main__R; [L22] float main__D; [L23] int main__i; [L24] main__Y = 0 [L25] main__i = 0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__i=0] [L26] COND TRUE main__i < 100000 [L28] main__X = __VERIFIER_nondet_float() [L29] main__D = __VERIFIER_nondet_float() [L30] int main____CPAchecker_TMP_0; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__D=50, main__i=0, main__X=49] [L31] COND TRUE main__X >= -128.0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__D=50, main__i=0, main__X=49] [L33] COND TRUE main__X <= 128.0 [L35] main____CPAchecker_TMP_0 = 1 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=50, main__i=0, main__X=49] [L36] COND TRUE main____CPAchecker_TMP_0 != 0 [L38] int main____CPAchecker_TMP_1; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=50, main__i=0, main__X=49] [L39] COND TRUE main__D >= 0.0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=50, main__i=0, main__X=49] [L41] COND TRUE main__D <= 16.0 [L43] main____CPAchecker_TMP_1 = 1 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=50, main__i=0, main__X=49] [L44] COND TRUE main____CPAchecker_TMP_1 != 0 [L46] main__S = main__Y [L47] main__Y = main__X [L48] main__R = main__X - main__S VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=50, main__i=0, main__S=51, main__X=49, main__Y=49] [L49] COND TRUE main__R <= (-main__D) [L51] main__Y = main__S - main__D VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=50, main__i=0, main__S=51, main__X=49] [L53] int main____CPAchecker_TMP_2; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=50, main__i=0, main__S=51, main__X=49] [L54] COND FALSE !(main__Y >= -129.0) VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=50, main__i=0, main__S=51, main__X=49] [L205] main____CPAchecker_TMP_2 = 0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=50, main__i=0, main__S=51, main__X=49] [L61] int __tmp_1; [L62] __tmp_1 = main____CPAchecker_TMP_2 [L63] int __VERIFIER_assert__cond; [L64] __VERIFIER_assert__cond = __tmp_1 VAL [__return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=50, main__i=0, main__S=51, main__X=49] [L65] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=50, main__i=0, main__S=51, main__X=49] [L67] reach_error() VAL [__return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=50, main__i=0, main__S=51, main__X=49] - UnprovableResult [Line: 123]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2022-07-22 13:55:44,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 b4d60c093ba6c9dcaff9815fcaab264eab148dbcfff5c12da0f56175eb222a22 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 13:55:46,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:55:46,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:55:46,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:55:46,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:55:46,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:55:46,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:55:46,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:55:46,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:55:46,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:55:46,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:55:46,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:55:46,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:55:46,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:55:46,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:55:46,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:55:46,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:55:46,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:55:46,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:55:46,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:55:46,421 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:55:46,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:55:46,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:55:46,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:55:46,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:55:46,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:55:46,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:55:46,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:55:46,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:55:46,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:55:46,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:55:46,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:55:46,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:55:46,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:55:46,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:55:46,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:55:46,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:55:46,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:55:46,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:55:46,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:55:46,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:55:46,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:55:46,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 13:55:46,470 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:55:46,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:55:46,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:55:46,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:55:46,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:55:46,472 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:55:46,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:55:46,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:55:46,473 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:55:46,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:55:46,474 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:55:46,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:55:46,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:55:46,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:55:46,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:55:46,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:55:46,475 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 13:55:46,475 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 13:55:46,475 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 13:55:46,475 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:55:46,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:55:46,476 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:55:46,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:55:46,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:55:46,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:55:46,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:55:46,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:55:46,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:55:46,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:55:46,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:55:46,477 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 13:55:46,478 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 13:55:46,478 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:55:46,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:55:46,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:55:46,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 13:55:46,478 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4d60c093ba6c9dcaff9815fcaab264eab148dbcfff5c12da0f56175eb222a22 [2022-07-22 13:55:46,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:55:46,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:55:46,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:55:46,766 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:55:46,767 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:55:46,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2022-07-22 13:55:46,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca5791221/d6ead0df53bf4cfe9dd5a5de763c0c73/FLAG1877197c2 [2022-07-22 13:55:47,167 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:55:47,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2022-07-22 13:55:47,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca5791221/d6ead0df53bf4cfe9dd5a5de763c0c73/FLAG1877197c2 [2022-07-22 13:55:47,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca5791221/d6ead0df53bf4cfe9dd5a5de763c0c73 [2022-07-22 13:55:47,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:55:47,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:55:47,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:55:47,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:55:47,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:55:47,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4b7604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47, skipping insertion in model container [2022-07-22 13:55:47,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:55:47,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:55:47,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[1494,1507] [2022-07-22 13:55:47,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[2698,2711] [2022-07-22 13:55:47,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:55:47,738 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:55:47,768 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[1494,1507] [2022-07-22 13:55:47,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[2698,2711] [2022-07-22 13:55:47,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:55:47,798 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:55:47,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47 WrapperNode [2022-07-22 13:55:47,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:55:47,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:55:47,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:55:47,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:55:47,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,843 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 151 [2022-07-22 13:55:47,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:55:47,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:55:47,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:55:47,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:55:47,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:55:47,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:55:47,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:55:47,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:55:47,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47" (1/1) ... [2022-07-22 13:55:47,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:55:47,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:55:47,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 13:55:47,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 13:55:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:55:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 13:55:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:55:47,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:55:48,000 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:55:48,001 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:55:49,390 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 13:55:49,394 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 13:55:49,394 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 13:55:49,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:55:49 BoogieIcfgContainer [2022-07-22 13:55:49,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 13:55:49,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 13:55:49,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 13:55:49,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 13:55:49,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:55:47" (1/3) ... [2022-07-22 13:55:49,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e2a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:55:49, skipping insertion in model container [2022-07-22 13:55:49,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:55:47" (2/3) ... [2022-07-22 13:55:49,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e2a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:55:49, skipping insertion in model container [2022-07-22 13:55:49,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:55:49" (3/3) ... [2022-07-22 13:55:49,407 INFO L111 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.v+lhb-reducer.c [2022-07-22 13:55:49,417 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 13:55:49,417 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-22 13:55:49,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 13:55:49,458 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4d822e36, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4474038a [2022-07-22 13:55:49,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-22 13:55:49,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:55:49,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 13:55:49,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:55:49,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:55:49,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:55:49,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:55:49,472 INFO L85 PathProgramCache]: Analyzing trace with hash 346658074, now seen corresponding path program 1 times [2022-07-22 13:55:49,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:55:49,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204357967] [2022-07-22 13:55:49,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:55:49,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:55:49,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:55:49,483 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 13:55:49,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 13:55:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:55:49,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 13:55:49,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:55:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:55:53,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:55:53,824 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:55:53,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204357967] [2022-07-22 13:55:53,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204357967] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:55:53,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:55:53,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 13:55:53,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016511450] [2022-07-22 13:55:53,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:55:53,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 13:55:53,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:55:53,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 13:55:53,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-07-22 13:55:53,859 INFO L87 Difference]: Start difference. First operand has 42 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:09,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:56:09,238 INFO L93 Difference]: Finished difference Result 114 states and 159 transitions. [2022-07-22 13:56:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 13:56:09,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-22 13:56:09,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:56:09,255 INFO L225 Difference]: With dead ends: 114 [2022-07-22 13:56:09,255 INFO L226 Difference]: Without dead ends: 68 [2022-07-22 13:56:09,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-22 13:56:09,259 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 90 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-07-22 13:56:09,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 253 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 23 Unchecked, 13.6s Time] [2022-07-22 13:56:09,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-07-22 13:56:09,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 41. [2022-07-22 13:56:09,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:09,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2022-07-22 13:56:09,283 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 16 [2022-07-22 13:56:09,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:56:09,283 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2022-07-22 13:56:09,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:09,283 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2022-07-22 13:56:09,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 13:56:09,284 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:56:09,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:56:09,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-22 13:56:09,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:56:09,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:56:09,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:56:09,490 INFO L85 PathProgramCache]: Analyzing trace with hash 257195701, now seen corresponding path program 1 times [2022-07-22 13:56:09,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:56:09,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347999929] [2022-07-22 13:56:09,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:56:09,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:56:09,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:56:09,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 13:56:09,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 13:56:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:56:09,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 13:56:09,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:56:09,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:56:09,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:56:09,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:56:09,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347999929] [2022-07-22 13:56:09,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347999929] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:56:09,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:56:09,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 13:56:09,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837008949] [2022-07-22 13:56:09,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:56:09,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 13:56:09,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:56:09,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 13:56:09,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 13:56:09,609 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:09,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:56:09,631 INFO L93 Difference]: Finished difference Result 66 states and 86 transitions. [2022-07-22 13:56:09,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 13:56:09,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-22 13:56:09,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:56:09,633 INFO L225 Difference]: With dead ends: 66 [2022-07-22 13:56:09,633 INFO L226 Difference]: Without dead ends: 64 [2022-07-22 13:56:09,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 13:56:09,634 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 32 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 13:56:09,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 140 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 13:56:09,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-07-22 13:56:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 43. [2022-07-22 13:56:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2022-07-22 13:56:09,639 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 16 [2022-07-22 13:56:09,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:56:09,639 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2022-07-22 13:56:09,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2022-07-22 13:56:09,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-22 13:56:09,640 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:56:09,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:56:09,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-22 13:56:09,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:56:09,850 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:56:09,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:56:09,850 INFO L85 PathProgramCache]: Analyzing trace with hash -533932591, now seen corresponding path program 1 times [2022-07-22 13:56:09,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:56:09,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986612265] [2022-07-22 13:56:09,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:56:09,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:56:09,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:56:09,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 13:56:09,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 13:56:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:56:09,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 13:56:09,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:56:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:56:16,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:56:16,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:56:16,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986612265] [2022-07-22 13:56:16,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986612265] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:56:16,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:56:16,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 13:56:16,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326145601] [2022-07-22 13:56:16,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:56:16,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 13:56:16,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:56:16,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 13:56:16,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-07-22 13:56:16,578 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:56:23,064 INFO L93 Difference]: Finished difference Result 96 states and 125 transitions. [2022-07-22 13:56:23,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 13:56:23,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-22 13:56:23,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:56:23,075 INFO L225 Difference]: With dead ends: 96 [2022-07-22 13:56:23,075 INFO L226 Difference]: Without dead ends: 71 [2022-07-22 13:56:23,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-22 13:56:23,076 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 67 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-22 13:56:23,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 136 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 24 Unchecked, 4.6s Time] [2022-07-22 13:56:23,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-07-22 13:56:23,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 44. [2022-07-22 13:56:23,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 43 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:23,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2022-07-22 13:56:23,080 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 17 [2022-07-22 13:56:23,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:56:23,080 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2022-07-22 13:56:23,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:23,081 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2022-07-22 13:56:23,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-22 13:56:23,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:56:23,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:56:23,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-22 13:56:23,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:56:23,292 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:56:23,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:56:23,293 INFO L85 PathProgramCache]: Analyzing trace with hash -354879015, now seen corresponding path program 1 times [2022-07-22 13:56:23,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:56:23,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867178329] [2022-07-22 13:56:23,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:56:23,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:56:23,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:56:23,295 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 13:56:23,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 13:56:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:56:23,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 13:56:23,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:56:27,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:56:27,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:56:27,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:56:27,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867178329] [2022-07-22 13:56:27,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867178329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:56:27,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:56:27,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 13:56:27,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098239789] [2022-07-22 13:56:27,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:56:27,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 13:56:27,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:56:27,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 13:56:27,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-22 13:56:27,107 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:30,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:56:30,080 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2022-07-22 13:56:30,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 13:56:30,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-22 13:56:30,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:56:30,086 INFO L225 Difference]: With dead ends: 71 [2022-07-22 13:56:30,086 INFO L226 Difference]: Without dead ends: 46 [2022-07-22 13:56:30,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-22 13:56:30,087 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 12 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 13:56:30,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 83 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 26 Unchecked, 1.0s Time] [2022-07-22 13:56:30,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-07-22 13:56:30,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-07-22 13:56:30,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-07-22 13:56:30,090 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 17 [2022-07-22 13:56:30,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:56:30,090 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-07-22 13:56:30,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:30,090 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-07-22 13:56:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-22 13:56:30,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:56:30,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:56:30,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-22 13:56:30,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:56:30,291 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:56:30,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:56:30,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1420128347, now seen corresponding path program 1 times [2022-07-22 13:56:30,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:56:30,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857821585] [2022-07-22 13:56:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:56:30,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:56:30,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:56:30,293 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 13:56:30,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 13:56:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:56:30,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 13:56:30,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:56:33,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:56:33,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:56:33,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:56:33,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857821585] [2022-07-22 13:56:33,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857821585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:56:33,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:56:33,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 13:56:33,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433231197] [2022-07-22 13:56:33,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:56:33,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 13:56:33,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:56:33,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 13:56:33,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 13:56:33,124 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:59,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:56:59,916 INFO L93 Difference]: Finished difference Result 137 states and 180 transitions. [2022-07-22 13:56:59,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 13:56:59,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-22 13:56:59,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:56:59,928 INFO L225 Difference]: With dead ends: 137 [2022-07-22 13:56:59,928 INFO L226 Difference]: Without dead ends: 112 [2022-07-22 13:56:59,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-22 13:56:59,929 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 97 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-07-22 13:56:59,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 109 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 24.1s Time] [2022-07-22 13:56:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-07-22 13:56:59,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 54. [2022-07-22 13:56:59,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 53 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:59,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2022-07-22 13:56:59,934 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 17 [2022-07-22 13:56:59,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:56:59,934 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2022-07-22 13:56:59,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:56:59,934 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2022-07-22 13:56:59,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 13:56:59,934 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:56:59,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:56:59,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-22 13:57:00,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:57:00,147 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:57:00,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:57:00,147 INFO L85 PathProgramCache]: Analyzing trace with hash -806745870, now seen corresponding path program 1 times [2022-07-22 13:57:00,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:57:00,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631071864] [2022-07-22 13:57:00,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:57:00,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:57:00,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:57:00,149 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 13:57:00,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-22 13:57:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:57:00,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 13:57:00,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:57:07,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:57:07,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:57:07,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:57:07,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631071864] [2022-07-22 13:57:07,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631071864] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:57:07,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:57:07,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 13:57:07,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522759631] [2022-07-22 13:57:07,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:57:07,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 13:57:07,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:57:07,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 13:57:07,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-07-22 13:57:07,386 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:57:16,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:57:16,208 INFO L93 Difference]: Finished difference Result 86 states and 113 transitions. [2022-07-22 13:57:16,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 13:57:16,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-22 13:57:16,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:57:16,214 INFO L225 Difference]: With dead ends: 86 [2022-07-22 13:57:16,215 INFO L226 Difference]: Without dead ends: 51 [2022-07-22 13:57:16,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-22 13:57:16,215 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 62 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-22 13:57:16,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 80 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 25 Unchecked, 6.7s Time] [2022-07-22 13:57:16,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-22 13:57:16,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2022-07-22 13:57:16,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:57:16,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2022-07-22 13:57:16,226 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 18 [2022-07-22 13:57:16,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:57:16,226 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2022-07-22 13:57:16,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:57:16,227 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2022-07-22 13:57:16,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 13:57:16,227 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:57:16,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:57:16,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-22 13:57:16,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:57:16,428 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:57:16,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:57:16,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1099426199, now seen corresponding path program 1 times [2022-07-22 13:57:16,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:57:16,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887126962] [2022-07-22 13:57:16,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:57:16,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:57:16,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:57:16,430 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 13:57:16,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-22 13:57:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:57:16,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 13:57:16,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:57:16,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:57:16,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:57:16,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:57:16,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887126962] [2022-07-22 13:57:16,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887126962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:57:16,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:57:16,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 13:57:16,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216226552] [2022-07-22 13:57:16,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:57:16,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 13:57:16,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:57:16,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 13:57:16,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 13:57:16,572 INFO L87 Difference]: Start difference. First operand 46 states and 60 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:57:16,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:57:16,605 INFO L93 Difference]: Finished difference Result 78 states and 104 transitions. [2022-07-22 13:57:16,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 13:57:16,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-22 13:57:16,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:57:16,606 INFO L225 Difference]: With dead ends: 78 [2022-07-22 13:57:16,606 INFO L226 Difference]: Without dead ends: 76 [2022-07-22 13:57:16,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 13:57:16,607 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 45 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 13:57:16,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 153 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 13:57:16,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-07-22 13:57:16,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 48. [2022-07-22 13:57:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 47 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:57:16,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2022-07-22 13:57:16,611 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 30 [2022-07-22 13:57:16,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:57:16,611 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2022-07-22 13:57:16,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 13:57:16,611 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2022-07-22 13:57:16,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 13:57:16,612 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:57:16,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:57:16,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-22 13:57:16,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:57:16,825 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:57:16,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:57:16,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1082415538, now seen corresponding path program 1 times [2022-07-22 13:57:16,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:57:16,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589367044] [2022-07-22 13:57:16,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:57:16,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:57:16,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:57:16,827 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 13:57:16,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-22 13:57:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:57:16,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-22 13:57:16,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:58:34,255 WARN L833 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~main__R~0#1_13| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24)) (|v_ULTIMATE.start_main_~main__D~0#1_21| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven |v_ULTIMATE.start_main_~main__D~0#1_21|)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (fp.leq .cse0 .cse1) (fp.leq .cse2 .cse1) (fp.geq .cse0 (_ +zero 11 53)) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) |v_ULTIMATE.start_main_~main__D~0#1_21|) |ULTIMATE.start_main_~main__D~0#1|)) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0)))) (fp.leq |v_ULTIMATE.start_main_~main__R~0#1_13| (fp.neg |v_ULTIMATE.start_main_~main__D~0#1_21|)) (fp.leq |ULTIMATE.start_main_~main__R~0#1| (fp.neg |ULTIMATE.start_main_~main__D~0#1|)) (fp.geq .cse2 (_ +zero 11 53))))) is different from false [2022-07-22 13:58:36,270 WARN L855 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~main__R~0#1_13| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24)) (|v_ULTIMATE.start_main_~main__D~0#1_21| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven |v_ULTIMATE.start_main_~main__D~0#1_21|)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (fp.leq .cse0 .cse1) (fp.leq .cse2 .cse1) (fp.geq .cse0 (_ +zero 11 53)) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) |v_ULTIMATE.start_main_~main__D~0#1_21|) |ULTIMATE.start_main_~main__D~0#1|)) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0)))) (fp.leq |v_ULTIMATE.start_main_~main__R~0#1_13| (fp.neg |v_ULTIMATE.start_main_~main__D~0#1_21|)) (fp.leq |ULTIMATE.start_main_~main__R~0#1| (fp.neg |ULTIMATE.start_main_~main__D~0#1|)) (fp.geq .cse2 (_ +zero 11 53))))) is different from true [2022-07-22 13:59:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:59:56,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:59:56,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:59:56,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589367044] [2022-07-22 13:59:56,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589367044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:59:56,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:59:56,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 13:59:56,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781350434] [2022-07-22 13:59:56,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:59:56,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 13:59:56,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:59:56,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 13:59:56,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=81, Unknown=5, NotChecked=20, Total=156 [2022-07-22 13:59:56,505 INFO L87 Difference]: Start difference. First operand 48 states and 62 transitions. Second operand has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:00:00,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:00:00,306 INFO L93 Difference]: Finished difference Result 69 states and 89 transitions. [2022-07-22 14:00:00,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 14:00:00,312 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-22 14:00:00,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:00:00,313 INFO L225 Difference]: With dead ends: 69 [2022-07-22 14:00:00,313 INFO L226 Difference]: Without dead ends: 67 [2022-07-22 14:00:00,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 37.3s TimeCoverageRelationStatistics Valid=59, Invalid=96, Unknown=5, NotChecked=22, Total=182 [2022-07-22 14:00:00,314 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 37 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-22 14:00:00,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 72 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 110 Unchecked, 1.6s Time] [2022-07-22 14:00:00,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-07-22 14:00:00,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2022-07-22 14:00:00,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:00:00,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 85 transitions. [2022-07-22 14:00:00,319 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 85 transitions. Word has length 30 [2022-07-22 14:00:00,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:00:00,319 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 85 transitions. [2022-07-22 14:00:00,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:00:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2022-07-22 14:00:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 14:00:00,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:00:00,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:00:00,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-22 14:00:00,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:00:00,520 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:00:00,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:00:00,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1958707529, now seen corresponding path program 1 times [2022-07-22 14:00:00,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:00:00,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798095608] [2022-07-22 14:00:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:00:00,521 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:00:00,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:00:00,523 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:00:00,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-22 14:00:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:00:00,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 14:00:00,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:00:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:00:00,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:00:00,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:00:00,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798095608] [2022-07-22 14:00:00,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798095608] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:00:00,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:00:00,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 14:00:00,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902374416] [2022-07-22 14:00:00,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:00:00,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 14:00:00,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:00:00,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 14:00:00,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 14:00:00,657 INFO L87 Difference]: Start difference. First operand 65 states and 85 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:00:00,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:00:00,752 INFO L93 Difference]: Finished difference Result 99 states and 131 transitions. [2022-07-22 14:00:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 14:00:00,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-22 14:00:00,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:00:00,753 INFO L225 Difference]: With dead ends: 99 [2022-07-22 14:00:00,754 INFO L226 Difference]: Without dead ends: 63 [2022-07-22 14:00:00,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 14:00:00,754 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 14:00:00,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 14:00:00,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-22 14:00:00,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-07-22 14:00:00,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.2419354838709677) internal successors, (77), 62 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:00:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2022-07-22 14:00:00,759 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 30 [2022-07-22 14:00:00,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:00:00,759 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2022-07-22 14:00:00,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:00:00,760 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2022-07-22 14:00:00,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 14:00:00,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:00:00,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:00:00,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-22 14:00:00,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:00:00,972 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:00:00,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:00:00,972 INFO L85 PathProgramCache]: Analyzing trace with hash 311933747, now seen corresponding path program 1 times [2022-07-22 14:00:00,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:00:00,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999629240] [2022-07-22 14:00:00,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:00:00,973 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:00:00,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:00:00,974 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:00:00,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-22 14:00:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:00:01,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 14:00:01,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:00:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:00:01,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:00:01,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:00:01,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999629240] [2022-07-22 14:00:01,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999629240] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:00:01,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:00:01,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 14:00:01,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723255956] [2022-07-22 14:00:01,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:00:01,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 14:00:01,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:00:01,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 14:00:01,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 14:00:01,113 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:00:01,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:00:01,172 INFO L93 Difference]: Finished difference Result 88 states and 108 transitions. [2022-07-22 14:00:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 14:00:01,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-22 14:00:01,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:00:01,172 INFO L225 Difference]: With dead ends: 88 [2022-07-22 14:00:01,173 INFO L226 Difference]: Without dead ends: 56 [2022-07-22 14:00:01,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 14:00:01,173 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 14:00:01,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 14:00:01,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-07-22 14:00:01,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-07-22 14:00:01,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 55 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:00:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2022-07-22 14:00:01,177 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 30 [2022-07-22 14:00:01,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:00:01,177 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2022-07-22 14:00:01,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:00:01,177 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2022-07-22 14:00:01,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-22 14:00:01,178 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:00:01,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:00:01,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-22 14:00:01,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:00:01,379 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:00:01,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:00:01,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1868306222, now seen corresponding path program 1 times [2022-07-22 14:00:01,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:00:01,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521626984] [2022-07-22 14:00:01,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:00:01,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:00:01,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:00:01,381 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:00:01,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-22 14:00:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:00:01,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 14:00:01,531 INFO L286 TraceCheckSpWp]: Computing forward predicates...