./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/eca-rers2012/Problem03_label22.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 ab22c0365eb274fbdef281fcc68fa9748749388c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 20:46:12,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 20:46:12,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 20:46:12,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 20:46:12,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 20:46:12,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 20:46:12,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 20:46:12,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 20:46:12,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 20:46:12,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 20:46:12,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 20:46:12,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 20:46:12,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 20:46:12,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 20:46:12,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 20:46:12,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 20:46:12,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 20:46:12,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 20:46:12,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 20:46:12,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 20:46:12,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 20:46:12,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 20:46:12,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 20:46:12,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 20:46:12,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 20:46:12,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 20:46:12,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 20:46:12,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 20:46:12,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 20:46:12,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 20:46:12,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 20:46:12,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 20:46:12,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 20:46:12,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 20:46:12,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 20:46:12,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 20:46:12,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 20:46:12,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 20:46:12,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 20:46:12,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 20:46:12,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 20:46:12,758 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 20:46:12,781 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 20:46:12,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 20:46:12,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 20:46:12,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 20:46:12,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 20:46:12,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 20:46:12,783 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 20:46:12,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 20:46:12,784 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 20:46:12,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 20:46:12,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 20:46:12,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 20:46:12,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 20:46:12,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 20:46:12,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 20:46:12,785 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 20:46:12,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 20:46:12,786 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 20:46:12,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 20:46:12,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 20:46:12,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 20:46:12,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 20:46:12,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:46:12,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 20:46:12,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 20:46:12,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 20:46:12,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 20:46:12,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 20:46:12,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 20:46:12,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 20:46:12,788 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab22c0365eb274fbdef281fcc68fa9748749388c [2021-08-25 20:46:13,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 20:46:13,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 20:46:13,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 20:46:13,160 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 20:46:13,161 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 20:46:13,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label22.c [2021-08-25 20:46:13,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdd73629c/fc54232d31174bcc851c18f464ecdfd1/FLAG49de89654 [2021-08-25 20:46:13,833 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 20:46:13,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label22.c [2021-08-25 20:46:13,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdd73629c/fc54232d31174bcc851c18f464ecdfd1/FLAG49de89654 [2021-08-25 20:46:14,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdd73629c/fc54232d31174bcc851c18f464ecdfd1 [2021-08-25 20:46:14,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 20:46:14,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 20:46:14,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 20:46:14,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 20:46:14,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 20:46:14,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:14,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5244c203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14, skipping insertion in model container [2021-08-25 20:46:14,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:14,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 20:46:14,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 20:46:14,602 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label22.c[56764,56777] [2021-08-25 20:46:14,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:46:14,641 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 20:46:14,829 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label22.c[56764,56777] [2021-08-25 20:46:14,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:46:14,858 INFO L208 MainTranslator]: Completed translation [2021-08-25 20:46:14,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14 WrapperNode [2021-08-25 20:46:14,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 20:46:14,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 20:46:14,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 20:46:14,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 20:46:14,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:14,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:14,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 20:46:14,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 20:46:14,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 20:46:14,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 20:46:15,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:15,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:15,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:15,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:15,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:15,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:15,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:15,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 20:46:15,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 20:46:15,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 20:46:15,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 20:46:15,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14" (1/1) ... [2021-08-25 20:46:15,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:46:15,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:46:15,137 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) [2021-08-25 20:46:15,175 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 [2021-08-25 20:46:15,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 20:46:15,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 20:46:15,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 20:46:15,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 20:46:17,071 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 20:46:17,072 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 20:46:17,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:46:17 BoogieIcfgContainer [2021-08-25 20:46:17,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 20:46:17,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 20:46:17,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 20:46:17,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 20:46:17,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:46:14" (1/3) ... [2021-08-25 20:46:17,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6c1510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:46:17, skipping insertion in model container [2021-08-25 20:46:17,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:46:14" (2/3) ... [2021-08-25 20:46:17,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6c1510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:46:17, skipping insertion in model container [2021-08-25 20:46:17,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:46:17" (3/3) ... [2021-08-25 20:46:17,083 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label22.c [2021-08-25 20:46:17,088 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 20:46:17,089 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 20:46:17,143 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 20:46:17,152 INFO L339 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, mConcurrency=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-08-25 20:46:17,152 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 20:46:17,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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) [2021-08-25 20:46:17,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-08-25 20:46:17,201 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:17,202 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:17,202 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:17,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:17,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1133598669, now seen corresponding path program 1 times [2021-08-25 20:46:17,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:17,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014143902] [2021-08-25 20:46:17,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:17,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:46:17,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:17,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014143902] [2021-08-25 20:46:17,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014143902] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:17,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:17,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:46:17,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696019805] [2021-08-25 20:46:17,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:17,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:17,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:17,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:17,808 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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) [2021-08-25 20:46:18,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:18,959 INFO L93 Difference]: Finished difference Result 857 states and 1498 transitions. [2021-08-25 20:46:18,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:18,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 167 [2021-08-25 20:46:18,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:18,973 INFO L225 Difference]: With dead ends: 857 [2021-08-25 20:46:18,974 INFO L226 Difference]: Without dead ends: 462 [2021-08-25 20:46:18,977 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:18,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-08-25 20:46:19,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 460. [2021-08-25 20:46:19,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.5381263616557734) internal successors, (706), 459 states have internal predecessors, (706), 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) [2021-08-25 20:46:19,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 706 transitions. [2021-08-25 20:46:19,030 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 706 transitions. Word has length 167 [2021-08-25 20:46:19,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:19,031 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 706 transitions. [2021-08-25 20:46:19,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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) [2021-08-25 20:46:19,031 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 706 transitions. [2021-08-25 20:46:19,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-08-25 20:46:19,035 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:19,035 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:19,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 20:46:19,036 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:19,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:19,037 INFO L82 PathProgramCache]: Analyzing trace with hash 166120884, now seen corresponding path program 1 times [2021-08-25 20:46:19,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:19,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961675396] [2021-08-25 20:46:19,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:19,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:19,129 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:46:19,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:19,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961675396] [2021-08-25 20:46:19,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961675396] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:19,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:19,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:46:19,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094785758] [2021-08-25 20:46:19,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:19,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:19,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:19,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:19,136 INFO L87 Difference]: Start difference. First operand 460 states and 706 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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) [2021-08-25 20:46:20,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:20,050 INFO L93 Difference]: Finished difference Result 1344 states and 2079 transitions. [2021-08-25 20:46:20,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:20,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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 175 [2021-08-25 20:46:20,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:20,055 INFO L225 Difference]: With dead ends: 1344 [2021-08-25 20:46:20,055 INFO L226 Difference]: Without dead ends: 886 [2021-08-25 20:46:20,057 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:20,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-08-25 20:46:20,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 870. [2021-08-25 20:46:20,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 869 states have (on average 1.5120828538550057) internal successors, (1314), 869 states have internal predecessors, (1314), 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) [2021-08-25 20:46:20,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1314 transitions. [2021-08-25 20:46:20,089 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1314 transitions. Word has length 175 [2021-08-25 20:46:20,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:20,089 INFO L470 AbstractCegarLoop]: Abstraction has 870 states and 1314 transitions. [2021-08-25 20:46:20,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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) [2021-08-25 20:46:20,090 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1314 transitions. [2021-08-25 20:46:20,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-08-25 20:46:20,095 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:20,095 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:20,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 20:46:20,096 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:20,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:20,097 INFO L82 PathProgramCache]: Analyzing trace with hash 2000740269, now seen corresponding path program 1 times [2021-08-25 20:46:20,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:20,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013059177] [2021-08-25 20:46:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:20,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-25 20:46:20,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:20,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013059177] [2021-08-25 20:46:20,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013059177] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:20,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:20,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:46:20,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095144024] [2021-08-25 20:46:20,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:20,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:20,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:20,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:20,172 INFO L87 Difference]: Start difference. First operand 870 states and 1314 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2021-08-25 20:46:21,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:21,035 INFO L93 Difference]: Finished difference Result 2554 states and 3869 transitions. [2021-08-25 20:46:21,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:21,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 187 [2021-08-25 20:46:21,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:21,042 INFO L225 Difference]: With dead ends: 2554 [2021-08-25 20:46:21,042 INFO L226 Difference]: Without dead ends: 1686 [2021-08-25 20:46:21,044 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:21,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-08-25 20:46:21,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1684. [2021-08-25 20:46:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.3368983957219251) internal successors, (2250), 1683 states have internal predecessors, (2250), 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) [2021-08-25 20:46:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2250 transitions. [2021-08-25 20:46:21,079 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2250 transitions. Word has length 187 [2021-08-25 20:46:21,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:21,080 INFO L470 AbstractCegarLoop]: Abstraction has 1684 states and 2250 transitions. [2021-08-25 20:46:21,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2021-08-25 20:46:21,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2250 transitions. [2021-08-25 20:46:21,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-08-25 20:46:21,084 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:21,084 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:21,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 20:46:21,085 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:21,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:21,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1982576624, now seen corresponding path program 1 times [2021-08-25 20:46:21,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:21,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713445219] [2021-08-25 20:46:21,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:21,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:21,143 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:46:21,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:21,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713445219] [2021-08-25 20:46:21,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713445219] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:21,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:21,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:46:21,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778654301] [2021-08-25 20:46:21,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:21,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:21,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:21,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:21,146 INFO L87 Difference]: Start difference. First operand 1684 states and 2250 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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) [2021-08-25 20:46:21,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:21,935 INFO L93 Difference]: Finished difference Result 5005 states and 6690 transitions. [2021-08-25 20:46:21,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:21,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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 190 [2021-08-25 20:46:21,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:21,948 INFO L225 Difference]: With dead ends: 5005 [2021-08-25 20:46:21,948 INFO L226 Difference]: Without dead ends: 3323 [2021-08-25 20:46:21,951 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:21,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3323 states. [2021-08-25 20:46:22,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3323 to 3320. [2021-08-25 20:46:22,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 3319 states have (on average 1.2853269056944863) internal successors, (4266), 3319 states have internal predecessors, (4266), 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) [2021-08-25 20:46:22,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4266 transitions. [2021-08-25 20:46:22,049 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4266 transitions. Word has length 190 [2021-08-25 20:46:22,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:22,049 INFO L470 AbstractCegarLoop]: Abstraction has 3320 states and 4266 transitions. [2021-08-25 20:46:22,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 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) [2021-08-25 20:46:22,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4266 transitions. [2021-08-25 20:46:22,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-08-25 20:46:22,057 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:22,057 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:22,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 20:46:22,057 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:22,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:22,058 INFO L82 PathProgramCache]: Analyzing trace with hash 326250757, now seen corresponding path program 1 times [2021-08-25 20:46:22,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:22,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766029051] [2021-08-25 20:46:22,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:22,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:22,137 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-25 20:46:22,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:22,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766029051] [2021-08-25 20:46:22,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766029051] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:22,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:22,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:46:22,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354209933] [2021-08-25 20:46:22,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:22,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:22,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:22,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:22,140 INFO L87 Difference]: Start difference. First operand 3320 states and 4266 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2021-08-25 20:46:23,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:23,060 INFO L93 Difference]: Finished difference Result 9900 states and 12723 transitions. [2021-08-25 20:46:23,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:23,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 202 [2021-08-25 20:46:23,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:23,085 INFO L225 Difference]: With dead ends: 9900 [2021-08-25 20:46:23,086 INFO L226 Difference]: Without dead ends: 6582 [2021-08-25 20:46:23,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:23,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states. [2021-08-25 20:46:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 6577. [2021-08-25 20:46:23,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6577 states, 6576 states have (on average 1.224756690997567) internal successors, (8054), 6576 states have internal predecessors, (8054), 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) [2021-08-25 20:46:23,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 8054 transitions. [2021-08-25 20:46:23,224 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 8054 transitions. Word has length 202 [2021-08-25 20:46:23,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:23,224 INFO L470 AbstractCegarLoop]: Abstraction has 6577 states and 8054 transitions. [2021-08-25 20:46:23,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2021-08-25 20:46:23,224 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 8054 transitions. [2021-08-25 20:46:23,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-08-25 20:46:23,235 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:23,235 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:23,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 20:46:23,235 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:23,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:23,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1195043644, now seen corresponding path program 1 times [2021-08-25 20:46:23,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:23,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954411998] [2021-08-25 20:46:23,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:23,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:23,306 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:46:23,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:23,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954411998] [2021-08-25 20:46:23,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954411998] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:23,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:23,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:46:23,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605479716] [2021-08-25 20:46:23,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:23,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:23,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:23,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:23,308 INFO L87 Difference]: Start difference. First operand 6577 states and 8054 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 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) [2021-08-25 20:46:24,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:24,253 INFO L93 Difference]: Finished difference Result 16027 states and 19631 transitions. [2021-08-25 20:46:24,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:24,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 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 208 [2021-08-25 20:46:24,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:24,331 INFO L225 Difference]: With dead ends: 16027 [2021-08-25 20:46:24,332 INFO L226 Difference]: Without dead ends: 9452 [2021-08-25 20:46:24,343 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:24,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9452 states. [2021-08-25 20:46:24,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9452 to 9439. [2021-08-25 20:46:24,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9439 states, 9438 states have (on average 1.21371053189235) internal successors, (11455), 9438 states have internal predecessors, (11455), 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) [2021-08-25 20:46:24,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9439 states to 9439 states and 11455 transitions. [2021-08-25 20:46:24,512 INFO L78 Accepts]: Start accepts. Automaton has 9439 states and 11455 transitions. Word has length 208 [2021-08-25 20:46:24,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:24,513 INFO L470 AbstractCegarLoop]: Abstraction has 9439 states and 11455 transitions. [2021-08-25 20:46:24,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 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) [2021-08-25 20:46:24,514 INFO L276 IsEmpty]: Start isEmpty. Operand 9439 states and 11455 transitions. [2021-08-25 20:46:24,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-08-25 20:46:24,529 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:24,530 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:24,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 20:46:24,530 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:24,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:24,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1486955153, now seen corresponding path program 1 times [2021-08-25 20:46:24,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:24,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173919921] [2021-08-25 20:46:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:24,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:24,637 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:46:24,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:24,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173919921] [2021-08-25 20:46:24,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173919921] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:46:24,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384755252] [2021-08-25 20:46:24,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:24,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:46:24,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:46:24,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 20:46:24,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 20:46:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:24,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 20:46:24,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:46:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-25 20:46:25,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384755252] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:25,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:46:25,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-08-25 20:46:25,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650595525] [2021-08-25 20:46:25,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:25,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:25,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:25,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:46:25,739 INFO L87 Difference]: Start difference. First operand 9439 states and 11455 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2021-08-25 20:46:26,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:26,543 INFO L93 Difference]: Finished difference Result 18879 states and 22913 transitions. [2021-08-25 20:46:26,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:26,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 215 [2021-08-25 20:46:26,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:26,579 INFO L225 Difference]: With dead ends: 18879 [2021-08-25 20:46:26,579 INFO L226 Difference]: Without dead ends: 9442 [2021-08-25 20:46:26,590 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:46:26,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9442 states. [2021-08-25 20:46:26,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9442 to 9439. [2021-08-25 20:46:26,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9439 states, 9438 states have (on average 1.2057639330366603) internal successors, (11380), 9438 states have internal predecessors, (11380), 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) [2021-08-25 20:46:26,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9439 states to 9439 states and 11380 transitions. [2021-08-25 20:46:26,743 INFO L78 Accepts]: Start accepts. Automaton has 9439 states and 11380 transitions. Word has length 215 [2021-08-25 20:46:26,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:26,743 INFO L470 AbstractCegarLoop]: Abstraction has 9439 states and 11380 transitions. [2021-08-25 20:46:26,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2021-08-25 20:46:26,745 INFO L276 IsEmpty]: Start isEmpty. Operand 9439 states and 11380 transitions. [2021-08-25 20:46:26,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-08-25 20:46:26,762 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:26,762 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:26,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-08-25 20:46:26,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:46:26,977 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:26,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:26,978 INFO L82 PathProgramCache]: Analyzing trace with hash 853347488, now seen corresponding path program 1 times [2021-08-25 20:46:26,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:26,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552371532] [2021-08-25 20:46:26,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:26,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:27,055 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-08-25 20:46:27,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:27,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552371532] [2021-08-25 20:46:27,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552371532] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:27,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:27,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:46:27,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5358765] [2021-08-25 20:46:27,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:27,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:27,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:27,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:27,058 INFO L87 Difference]: Start difference. First operand 9439 states and 11380 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2021-08-25 20:46:27,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:27,998 INFO L93 Difference]: Finished difference Result 22141 states and 26801 transitions. [2021-08-25 20:46:27,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:27,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 225 [2021-08-25 20:46:27,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:28,023 INFO L225 Difference]: With dead ends: 22141 [2021-08-25 20:46:28,024 INFO L226 Difference]: Without dead ends: 12704 [2021-08-25 20:46:28,034 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12704 states. [2021-08-25 20:46:28,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12704 to 11873. [2021-08-25 20:46:28,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11873 states, 11872 states have (on average 1.1862365229110512) internal successors, (14083), 11872 states have internal predecessors, (14083), 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) [2021-08-25 20:46:28,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11873 states to 11873 states and 14083 transitions. [2021-08-25 20:46:28,206 INFO L78 Accepts]: Start accepts. Automaton has 11873 states and 14083 transitions. Word has length 225 [2021-08-25 20:46:28,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:28,206 INFO L470 AbstractCegarLoop]: Abstraction has 11873 states and 14083 transitions. [2021-08-25 20:46:28,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2021-08-25 20:46:28,207 INFO L276 IsEmpty]: Start isEmpty. Operand 11873 states and 14083 transitions. [2021-08-25 20:46:28,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-08-25 20:46:28,226 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:28,226 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:28,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 20:46:28,226 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:28,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:28,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1197379301, now seen corresponding path program 1 times [2021-08-25 20:46:28,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:28,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692306998] [2021-08-25 20:46:28,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:28,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-08-25 20:46:28,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:28,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692306998] [2021-08-25 20:46:28,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692306998] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:28,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:28,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:46:28,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626167800] [2021-08-25 20:46:28,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:46:28,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:28,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:46:28,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:46:28,302 INFO L87 Difference]: Start difference. First operand 11873 states and 14083 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 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) [2021-08-25 20:46:29,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:29,741 INFO L93 Difference]: Finished difference Result 23163 states and 27521 transitions. [2021-08-25 20:46:29,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:46:29,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 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 241 [2021-08-25 20:46:29,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:29,762 INFO L225 Difference]: With dead ends: 23163 [2021-08-25 20:46:29,763 INFO L226 Difference]: Without dead ends: 11698 [2021-08-25 20:46:29,774 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:46:29,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11698 states. [2021-08-25 20:46:29,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11698 to 10653. [2021-08-25 20:46:29,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10653 states, 10652 states have (on average 1.1931092752534735) internal successors, (12709), 10652 states have internal predecessors, (12709), 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) [2021-08-25 20:46:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10653 states to 10653 states and 12709 transitions. [2021-08-25 20:46:29,942 INFO L78 Accepts]: Start accepts. Automaton has 10653 states and 12709 transitions. Word has length 241 [2021-08-25 20:46:29,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:29,943 INFO L470 AbstractCegarLoop]: Abstraction has 10653 states and 12709 transitions. [2021-08-25 20:46:29,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 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) [2021-08-25 20:46:29,943 INFO L276 IsEmpty]: Start isEmpty. Operand 10653 states and 12709 transitions. [2021-08-25 20:46:29,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-08-25 20:46:29,964 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:29,965 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:29,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 20:46:29,966 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:29,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:29,968 INFO L82 PathProgramCache]: Analyzing trace with hash -178927718, now seen corresponding path program 1 times [2021-08-25 20:46:29,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:29,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626004285] [2021-08-25 20:46:29,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:29,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:30,069 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 92 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-08-25 20:46:30,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:30,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626004285] [2021-08-25 20:46:30,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626004285] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:46:30,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164781990] [2021-08-25 20:46:30,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:30,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:46:30,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:46:30,081 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 20:46:30,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-25 20:46:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:30,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:46:30,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:46:31,012 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-08-25 20:46:31,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164781990] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:31,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:46:31,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-08-25 20:46:31,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269898480] [2021-08-25 20:46:31,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:31,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:31,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:31,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:46:31,053 INFO L87 Difference]: Start difference. First operand 10653 states and 12709 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 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) [2021-08-25 20:46:31,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:31,483 INFO L93 Difference]: Finished difference Result 20862 states and 24885 transitions. [2021-08-25 20:46:31,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:31,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 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 248 [2021-08-25 20:46:31,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:31,501 INFO L225 Difference]: With dead ends: 20862 [2021-08-25 20:46:31,501 INFO L226 Difference]: Without dead ends: 10617 [2021-08-25 20:46:31,514 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.0ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:46:31,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10617 states. [2021-08-25 20:46:31,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10617 to 10617. [2021-08-25 20:46:31,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10617 states, 10616 states have (on average 1.183779201205727) internal successors, (12567), 10616 states have internal predecessors, (12567), 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) [2021-08-25 20:46:31,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10617 states to 10617 states and 12567 transitions. [2021-08-25 20:46:31,639 INFO L78 Accepts]: Start accepts. Automaton has 10617 states and 12567 transitions. Word has length 248 [2021-08-25 20:46:31,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:31,639 INFO L470 AbstractCegarLoop]: Abstraction has 10617 states and 12567 transitions. [2021-08-25 20:46:31,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 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) [2021-08-25 20:46:31,640 INFO L276 IsEmpty]: Start isEmpty. Operand 10617 states and 12567 transitions. [2021-08-25 20:46:31,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-08-25 20:46:31,660 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:31,661 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:31,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-25 20:46:31,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-25 20:46:31,886 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:31,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:31,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1655882943, now seen corresponding path program 1 times [2021-08-25 20:46:31,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:31,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955947148] [2021-08-25 20:46:31,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:31,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:31,990 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 94 proven. 6 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-08-25 20:46:31,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:31,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955947148] [2021-08-25 20:46:31,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955947148] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:46:31,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145020661] [2021-08-25 20:46:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:31,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:46:31,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:46:32,005 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 20:46:32,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-25 20:46:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:32,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 20:46:32,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:46:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-25 20:46:32,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145020661] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:32,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:46:32,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-08-25 20:46:32,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732868715] [2021-08-25 20:46:32,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:32,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:32,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:32,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:46:32,987 INFO L87 Difference]: Start difference. First operand 10617 states and 12567 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2021-08-25 20:46:33,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:33,800 INFO L93 Difference]: Finished difference Result 25498 states and 30619 transitions. [2021-08-25 20:46:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:33,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 276 [2021-08-25 20:46:33,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:33,818 INFO L225 Difference]: With dead ends: 25498 [2021-08-25 20:46:33,818 INFO L226 Difference]: Without dead ends: 15086 [2021-08-25 20:46:33,824 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:46:33,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15086 states. [2021-08-25 20:46:33,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15086 to 14677. [2021-08-25 20:46:33,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14677 states, 14676 states have (on average 1.1558326519487598) internal successors, (16963), 14676 states have internal predecessors, (16963), 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) [2021-08-25 20:46:33,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14677 states to 14677 states and 16963 transitions. [2021-08-25 20:46:33,995 INFO L78 Accepts]: Start accepts. Automaton has 14677 states and 16963 transitions. Word has length 276 [2021-08-25 20:46:33,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:33,997 INFO L470 AbstractCegarLoop]: Abstraction has 14677 states and 16963 transitions. [2021-08-25 20:46:33,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2021-08-25 20:46:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand 14677 states and 16963 transitions. [2021-08-25 20:46:34,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-08-25 20:46:34,018 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:34,018 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:34,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-08-25 20:46:34,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:46:34,241 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:34,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:34,241 INFO L82 PathProgramCache]: Analyzing trace with hash 819492618, now seen corresponding path program 1 times [2021-08-25 20:46:34,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:34,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144440152] [2021-08-25 20:46:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:34,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:34,338 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-08-25 20:46:34,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:34,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144440152] [2021-08-25 20:46:34,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144440152] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:34,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:34,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:46:34,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501879384] [2021-08-25 20:46:34,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:46:34,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:34,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:46:34,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:46:34,340 INFO L87 Difference]: Start difference. First operand 14677 states and 16963 transitions. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 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) [2021-08-25 20:46:35,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:35,299 INFO L93 Difference]: Finished difference Result 34235 states and 39936 transitions. [2021-08-25 20:46:35,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:46:35,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 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 285 [2021-08-25 20:46:35,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:35,324 INFO L225 Difference]: With dead ends: 34235 [2021-08-25 20:46:35,324 INFO L226 Difference]: Without dead ends: 18748 [2021-08-25 20:46:35,335 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:46:35,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18748 states. [2021-08-25 20:46:35,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18748 to 18341. [2021-08-25 20:46:35,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18341 states, 18340 states have (on average 1.0984187568157033) internal successors, (20145), 18340 states have internal predecessors, (20145), 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) [2021-08-25 20:46:35,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18341 states to 18341 states and 20145 transitions. [2021-08-25 20:46:35,608 INFO L78 Accepts]: Start accepts. Automaton has 18341 states and 20145 transitions. Word has length 285 [2021-08-25 20:46:35,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:35,609 INFO L470 AbstractCegarLoop]: Abstraction has 18341 states and 20145 transitions. [2021-08-25 20:46:35,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 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) [2021-08-25 20:46:35,609 INFO L276 IsEmpty]: Start isEmpty. Operand 18341 states and 20145 transitions. [2021-08-25 20:46:35,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-08-25 20:46:35,628 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:35,629 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:35,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-25 20:46:35,629 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:35,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:35,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1813899320, now seen corresponding path program 1 times [2021-08-25 20:46:35,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:35,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678247385] [2021-08-25 20:46:35,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:35,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:46:35,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:35,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678247385] [2021-08-25 20:46:35,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678247385] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:35,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:35,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:46:35,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516568846] [2021-08-25 20:46:35,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:35,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:35,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:35,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:35,739 INFO L87 Difference]: Start difference. First operand 18341 states and 20145 transitions. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 2 states have internal predecessors, (293), 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) [2021-08-25 20:46:36,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:36,471 INFO L93 Difference]: Finished difference Result 38920 states and 42688 transitions. [2021-08-25 20:46:36,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:36,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 2 states have internal predecessors, (293), 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 293 [2021-08-25 20:46:36,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:36,494 INFO L225 Difference]: With dead ends: 38920 [2021-08-25 20:46:36,494 INFO L226 Difference]: Without dead ends: 20784 [2021-08-25 20:46:36,506 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:36,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20784 states. [2021-08-25 20:46:36,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20784 to 20580. [2021-08-25 20:46:36,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20580 states, 20579 states have (on average 1.0952913163904952) internal successors, (22540), 20579 states have internal predecessors, (22540), 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) [2021-08-25 20:46:36,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20580 states to 20580 states and 22540 transitions. [2021-08-25 20:46:36,797 INFO L78 Accepts]: Start accepts. Automaton has 20580 states and 22540 transitions. Word has length 293 [2021-08-25 20:46:36,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:36,797 INFO L470 AbstractCegarLoop]: Abstraction has 20580 states and 22540 transitions. [2021-08-25 20:46:36,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 2 states have internal predecessors, (293), 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) [2021-08-25 20:46:36,797 INFO L276 IsEmpty]: Start isEmpty. Operand 20580 states and 22540 transitions. [2021-08-25 20:46:36,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-08-25 20:46:36,816 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:36,817 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:36,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-25 20:46:36,817 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:36,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:36,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1246965763, now seen corresponding path program 1 times [2021-08-25 20:46:36,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:36,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772686527] [2021-08-25 20:46:36,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:36,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:36,951 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:46:36,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:36,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772686527] [2021-08-25 20:46:36,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772686527] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:36,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:36,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:46:36,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984125024] [2021-08-25 20:46:36,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:46:36,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:36,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:46:36,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:46:36,954 INFO L87 Difference]: Start difference. First operand 20580 states and 22540 transitions. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 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) [2021-08-25 20:46:38,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:38,037 INFO L93 Difference]: Finished difference Result 46236 states and 50403 transitions. [2021-08-25 20:46:38,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:46:38,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 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 300 [2021-08-25 20:46:38,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:38,062 INFO L225 Difference]: With dead ends: 46236 [2021-08-25 20:46:38,062 INFO L226 Difference]: Without dead ends: 25658 [2021-08-25 20:46:38,073 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:46:38,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25658 states. [2021-08-25 20:46:38,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25658 to 20783. [2021-08-25 20:46:38,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20783 states, 20782 states have (on average 1.093013184486575) internal successors, (22715), 20782 states have internal predecessors, (22715), 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) [2021-08-25 20:46:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20783 states to 20783 states and 22715 transitions. [2021-08-25 20:46:38,364 INFO L78 Accepts]: Start accepts. Automaton has 20783 states and 22715 transitions. Word has length 300 [2021-08-25 20:46:38,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:38,365 INFO L470 AbstractCegarLoop]: Abstraction has 20783 states and 22715 transitions. [2021-08-25 20:46:38,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 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) [2021-08-25 20:46:38,366 INFO L276 IsEmpty]: Start isEmpty. Operand 20783 states and 22715 transitions. [2021-08-25 20:46:38,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-08-25 20:46:38,389 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:38,390 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:38,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-25 20:46:38,390 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:38,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:38,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1212668539, now seen corresponding path program 1 times [2021-08-25 20:46:38,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:38,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555371133] [2021-08-25 20:46:38,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:38,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:38,492 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-08-25 20:46:38,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:38,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555371133] [2021-08-25 20:46:38,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555371133] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:46:38,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893577004] [2021-08-25 20:46:38,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:38,493 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:46:38,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:46:38,497 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 20:46:38,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-25 20:46:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:38,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:46:38,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:46:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-08-25 20:46:39,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893577004] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:39,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:46:39,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-08-25 20:46:39,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766920871] [2021-08-25 20:46:39,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:39,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:39,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:39,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:46:39,780 INFO L87 Difference]: Start difference. First operand 20783 states and 22715 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2021-08-25 20:46:40,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:40,486 INFO L93 Difference]: Finished difference Result 39519 states and 43100 transitions. [2021-08-25 20:46:40,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:40,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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 333 [2021-08-25 20:46:40,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:40,509 INFO L225 Difference]: With dead ends: 39519 [2021-08-25 20:46:40,509 INFO L226 Difference]: Without dead ends: 18941 [2021-08-25 20:46:40,524 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:46:40,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18941 states. [2021-08-25 20:46:40,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18941 to 18532. [2021-08-25 20:46:40,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18532 states, 18531 states have (on average 1.0725271167233286) internal successors, (19875), 18531 states have internal predecessors, (19875), 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) [2021-08-25 20:46:40,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18532 states to 18532 states and 19875 transitions. [2021-08-25 20:46:40,807 INFO L78 Accepts]: Start accepts. Automaton has 18532 states and 19875 transitions. Word has length 333 [2021-08-25 20:46:40,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:40,808 INFO L470 AbstractCegarLoop]: Abstraction has 18532 states and 19875 transitions. [2021-08-25 20:46:40,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2021-08-25 20:46:40,808 INFO L276 IsEmpty]: Start isEmpty. Operand 18532 states and 19875 transitions. [2021-08-25 20:46:40,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-08-25 20:46:40,830 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:40,830 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:40,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-25 20:46:41,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-08-25 20:46:41,032 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:41,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:41,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1874742227, now seen corresponding path program 1 times [2021-08-25 20:46:41,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:41,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500618556] [2021-08-25 20:46:41,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:41,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2021-08-25 20:46:41,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:41,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500618556] [2021-08-25 20:46:41,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500618556] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:41,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:46:41,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:46:41,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609870631] [2021-08-25 20:46:41,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:41,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:41,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:41,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:41,146 INFO L87 Difference]: Start difference. First operand 18532 states and 19875 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 2 states have internal predecessors, (249), 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) [2021-08-25 20:46:41,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:41,893 INFO L93 Difference]: Finished difference Result 40119 states and 43145 transitions. [2021-08-25 20:46:41,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:41,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 2 states have internal predecessors, (249), 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 351 [2021-08-25 20:46:41,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:41,917 INFO L225 Difference]: With dead ends: 40119 [2021-08-25 20:46:41,917 INFO L226 Difference]: Without dead ends: 21792 [2021-08-25 20:46:41,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:46:41,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21792 states. [2021-08-25 20:46:42,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21792 to 20767. [2021-08-25 20:46:42,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20767 states, 20766 states have (on average 1.077675045747857) internal successors, (22379), 20766 states have internal predecessors, (22379), 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) [2021-08-25 20:46:42,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20767 states to 20767 states and 22379 transitions. [2021-08-25 20:46:42,148 INFO L78 Accepts]: Start accepts. Automaton has 20767 states and 22379 transitions. Word has length 351 [2021-08-25 20:46:42,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:42,148 INFO L470 AbstractCegarLoop]: Abstraction has 20767 states and 22379 transitions. [2021-08-25 20:46:42,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 2 states have internal predecessors, (249), 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) [2021-08-25 20:46:42,148 INFO L276 IsEmpty]: Start isEmpty. Operand 20767 states and 22379 transitions. [2021-08-25 20:46:42,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-08-25 20:46:42,169 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:46:42,169 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:46:42,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-25 20:46:42,169 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:46:42,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:46:42,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1254391138, now seen corresponding path program 1 times [2021-08-25 20:46:42,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:46:42,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380011547] [2021-08-25 20:46:42,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:42,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:46:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 147 proven. 6 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2021-08-25 20:46:42,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:46:42,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380011547] [2021-08-25 20:46:42,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380011547] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:46:42,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233028514] [2021-08-25 20:46:42,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:46:42,269 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:46:42,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:46:42,273 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 20:46:42,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-25 20:46:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:46:42,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:46:42,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:46:43,720 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-08-25 20:46:43,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233028514] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:46:43,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:46:43,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-08-25 20:46:43,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014676473] [2021-08-25 20:46:43,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:46:43,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:46:43,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:46:43,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:46:43,723 INFO L87 Difference]: Start difference. First operand 20767 states and 22379 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2021-08-25 20:46:44,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:46:44,383 INFO L93 Difference]: Finished difference Result 41132 states and 44269 transitions. [2021-08-25 20:46:44,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:46:44,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 362 [2021-08-25 20:46:44,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:46:44,384 INFO L225 Difference]: With dead ends: 41132 [2021-08-25 20:46:44,384 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 20:46:44,395 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:46:44,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 20:46:44,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 20:46:44,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:46:44,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 20:46:44,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 362 [2021-08-25 20:46:44,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:46:44,396 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 20:46:44,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2021-08-25 20:46:44,397 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 20:46:44,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 20:46:44,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 20:46:44,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-25 20:46:44,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-08-25 20:46:44,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 20:46:44,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:46:44,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:46:44,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:46:45,121 INFO L857 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-08-25 20:46:45,122 INFO L857 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-08-25 20:46:45,122 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,122 INFO L857 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-08-25 20:46:45,122 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,122 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,123 INFO L857 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,123 INFO L857 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,123 INFO L857 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,123 INFO L857 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,123 INFO L857 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,123 INFO L857 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,123 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,124 INFO L857 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,124 INFO L857 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-08-25 20:46:45,124 INFO L857 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-08-25 20:46:45,124 INFO L857 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-08-25 20:46:45,124 INFO L857 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,124 INFO L857 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-08-25 20:46:45,124 INFO L857 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-08-25 20:46:45,124 INFO L857 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,124 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,125 INFO L857 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,125 INFO L857 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,125 INFO L857 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,125 INFO L857 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,125 INFO L857 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,125 INFO L857 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,125 INFO L857 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,125 INFO L857 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-08-25 20:46:45,126 INFO L857 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-08-25 20:46:45,126 INFO L857 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-08-25 20:46:45,126 INFO L857 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,126 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,126 INFO L857 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,126 INFO L857 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,126 INFO L857 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,126 INFO L857 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,127 INFO L857 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-08-25 20:46:45,127 INFO L857 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-08-25 20:46:45,127 INFO L857 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,128 INFO L857 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-08-25 20:46:45,129 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,129 INFO L857 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-08-25 20:46:45,129 INFO L857 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-08-25 20:46:45,129 INFO L857 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,129 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,129 INFO L857 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,129 INFO L857 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,130 INFO L857 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,130 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,130 INFO L857 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,130 INFO L857 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-08-25 20:46:45,130 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,130 INFO L857 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-08-25 20:46:45,130 INFO L857 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-08-25 20:46:45,130 INFO L857 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,130 INFO L857 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,132 INFO L857 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,132 INFO L857 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,132 INFO L857 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-08-25 20:46:45,133 INFO L857 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-08-25 20:46:45,133 INFO L857 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,133 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,133 INFO L857 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,133 INFO L857 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,133 INFO L857 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,133 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,133 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,134 INFO L857 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,134 INFO L857 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,134 INFO L857 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,134 INFO L857 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-08-25 20:46:45,134 INFO L857 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-08-25 20:46:45,134 INFO L857 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-08-25 20:46:45,136 INFO L857 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,136 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,136 INFO L857 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,136 INFO L857 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,136 INFO L857 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,137 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,137 INFO L857 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-08-25 20:46:45,137 INFO L857 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-08-25 20:46:45,137 INFO L857 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-08-25 20:46:45,137 INFO L857 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,137 INFO L857 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,137 INFO L857 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,137 INFO L857 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,138 INFO L857 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,138 INFO L857 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,138 INFO L857 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-08-25 20:46:45,138 INFO L857 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-08-25 20:46:45,138 INFO L857 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-08-25 20:46:45,138 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,138 INFO L857 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,138 INFO L857 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,138 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-08-25 20:46:45,139 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,139 INFO L857 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-08-25 20:46:45,139 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 20:46:45,139 INFO L857 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,139 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,139 INFO L857 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-08-25 20:46:45,139 INFO L857 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-08-25 20:46:45,139 INFO L857 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,140 INFO L857 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,140 INFO L857 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,140 INFO L857 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,140 INFO L857 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,140 INFO L857 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,140 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,140 INFO L857 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-08-25 20:46:45,140 INFO L857 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-08-25 20:46:45,140 INFO L857 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-08-25 20:46:45,141 INFO L857 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-08-25 20:46:45,141 INFO L857 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-08-25 20:46:45,141 INFO L857 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,141 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,141 INFO L857 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,141 INFO L857 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,141 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,141 INFO L857 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,142 INFO L857 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,142 INFO L857 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,142 INFO L857 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,142 INFO L857 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,142 INFO L857 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-08-25 20:46:45,142 INFO L857 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-08-25 20:46:45,142 INFO L857 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-08-25 20:46:45,142 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,142 INFO L857 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,143 INFO L857 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,143 INFO L857 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,143 INFO L857 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,143 INFO L857 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,143 INFO L857 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,143 INFO L857 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,143 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,143 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 20:46:45,144 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1546) no Hoare annotation was computed. [2021-08-25 20:46:45,144 INFO L857 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-08-25 20:46:45,144 INFO L857 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-08-25 20:46:45,144 INFO L857 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-08-25 20:46:45,144 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-08-25 20:46:45,144 INFO L857 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-08-25 20:46:45,144 INFO L857 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,145 INFO L857 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,145 INFO L857 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,145 INFO L857 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,145 INFO L857 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,145 INFO L857 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,145 INFO L857 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,145 INFO L857 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,145 INFO L857 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-08-25 20:46:45,146 INFO L857 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-08-25 20:46:45,146 INFO L857 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-08-25 20:46:45,146 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,146 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,146 INFO L857 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,146 INFO L857 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-08-25 20:46:45,146 INFO L857 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-08-25 20:46:45,146 INFO L857 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,146 INFO L857 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,147 INFO L857 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,147 INFO L857 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-08-25 20:46:45,147 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,147 INFO L857 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-08-25 20:46:45,147 INFO L857 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,147 INFO L857 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-08-25 20:46:45,147 INFO L857 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,147 INFO L857 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,148 INFO L857 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-08-25 20:46:45,148 INFO L857 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-08-25 20:46:45,148 INFO L857 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-08-25 20:46:45,148 INFO L857 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-08-25 20:46:45,148 INFO L857 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-08-25 20:46:45,148 INFO L857 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-08-25 20:46:45,148 INFO L857 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-08-25 20:46:45,148 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,149 INFO L857 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,149 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,150 INFO L853 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse2 (<= ~a3~0 1)) (.cse6 (= ~a26~0 1)) (.cse5 (= ~a11~0 0)) (.cse3 (<= 1 ~a3~0)) (.cse7 (= ~a27~0 1)) (.cse0 (= ~a5~0 1)) (.cse1 (= ~a12~0 1)) (.cse4 (<= ~a26~0 0)) (.cse8 (= ~a11~0 1)) (.cse9 (= ~a3~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse2 .cse3 .cse7) (and .cse6 .cse0 .cse3 .cse8) (and .cse6 .cse0 .cse9) (and .cse0 .cse3 .cse4 .cse8 (<= ~a6~0 0)) (and .cse0 .cse7 .cse9) (and .cse6 .cse0 .cse1 .cse2 .cse3) (and .cse6 .cse0 .cse3 .cse5) (and .cse0 .cse3 .cse4 .cse8 .cse7) (and .cse0 .cse1 .cse4 (not .cse8) .cse9))) [2021-08-25 20:46:45,150 INFO L857 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,150 INFO L857 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,150 INFO L857 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,150 INFO L857 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-08-25 20:46:45,150 INFO L857 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-08-25 20:46:45,150 INFO L857 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,150 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,151 INFO L857 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,151 INFO L860 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-08-25 20:46:45,151 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,151 INFO L857 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,151 INFO L857 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,151 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,151 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,151 INFO L857 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,152 INFO L857 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-08-25 20:46:45,152 INFO L857 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-08-25 20:46:45,152 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,152 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,152 INFO L857 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,152 INFO L857 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,152 INFO L857 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,152 INFO L857 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,153 INFO L857 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,153 INFO L857 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,153 INFO L857 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,153 INFO L857 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-08-25 20:46:45,153 INFO L857 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-08-25 20:46:45,153 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,153 INFO L857 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,153 INFO L857 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-08-25 20:46:45,153 INFO L857 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-08-25 20:46:45,154 INFO L857 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,155 INFO L853 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse2 (<= ~a3~0 1)) (.cse6 (= ~a26~0 1)) (.cse5 (= ~a11~0 0)) (.cse3 (<= 1 ~a3~0)) (.cse7 (= ~a27~0 1)) (.cse0 (= ~a5~0 1)) (.cse1 (= ~a12~0 1)) (.cse4 (<= ~a26~0 0)) (.cse8 (= ~a11~0 1)) (.cse9 (= ~a3~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse2 .cse3 .cse7) (and .cse6 .cse0 .cse3 .cse8) (and .cse6 .cse0 .cse9) (and .cse0 .cse3 .cse4 .cse8 (<= ~a6~0 0)) (and .cse0 .cse7 .cse9) (and .cse6 .cse0 .cse1 .cse2 .cse3) (and .cse6 .cse0 .cse3 .cse5) (and .cse0 .cse3 .cse4 .cse8 .cse7) (and .cse0 .cse1 .cse4 (not .cse8) .cse9))) [2021-08-25 20:46:45,155 INFO L857 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,155 INFO L857 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,155 INFO L857 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,155 INFO L857 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,155 INFO L857 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-08-25 20:46:45,156 INFO L857 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-08-25 20:46:45,156 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,156 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,156 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,156 INFO L857 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,156 INFO L857 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,156 INFO L857 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,156 INFO L857 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,156 INFO L857 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,157 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 20:46:45,157 INFO L857 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-08-25 20:46:45,157 INFO L857 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-08-25 20:46:45,157 INFO L857 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-08-25 20:46:45,157 INFO L857 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,157 INFO L857 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-08-25 20:46:45,157 INFO L857 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,157 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,158 INFO L857 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-08-25 20:46:45,158 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,158 INFO L857 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,158 INFO L857 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,158 INFO L857 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,158 INFO L857 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,159 INFO L857 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-08-25 20:46:45,159 INFO L857 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,159 INFO L857 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-08-25 20:46:45,160 INFO L857 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-08-25 20:46:45,160 INFO L857 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-08-25 20:46:45,160 INFO L857 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,160 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,160 INFO L857 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,161 INFO L857 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,161 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,161 INFO L857 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,162 INFO L857 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,162 INFO L857 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,162 INFO L857 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-08-25 20:46:45,162 INFO L857 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-08-25 20:46:45,162 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,162 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,163 INFO L857 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-08-25 20:46:45,163 INFO L857 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-08-25 20:46:45,163 INFO L857 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-08-25 20:46:45,163 INFO L857 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,163 INFO L857 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,163 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,163 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,163 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,163 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 20:46:45,164 INFO L857 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,164 INFO L857 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,164 INFO L857 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,164 INFO L857 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,164 INFO L857 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,164 INFO L857 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,164 INFO L857 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-08-25 20:46:45,164 INFO L857 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-08-25 20:46:45,165 INFO L857 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-08-25 20:46:45,165 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,165 INFO L857 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,165 INFO L857 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,165 INFO L857 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,165 INFO L857 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,165 INFO L857 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,165 INFO L857 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,165 INFO L857 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-08-25 20:46:45,166 INFO L857 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-08-25 20:46:45,166 INFO L857 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,166 INFO L857 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-08-25 20:46:45,166 INFO L857 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-08-25 20:46:45,166 INFO L857 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-08-25 20:46:45,166 INFO L857 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,166 INFO L857 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,166 INFO L857 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,167 INFO L857 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,167 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-08-25 20:46:45,167 INFO L857 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-08-25 20:46:45,167 INFO L857 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-08-25 20:46:45,167 INFO L857 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,167 INFO L857 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,167 INFO L857 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:46:45,171 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 20:46:45,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 08:46:45 BoogieIcfgContainer [2021-08-25 20:46:45,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 20:46:45,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 20:46:45,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 20:46:45,203 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 20:46:45,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:46:17" (3/4) ... [2021-08-25 20:46:45,206 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 20:46:45,238 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 20:46:45,241 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 20:46:45,243 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:46:45,245 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:46:45,403 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 20:46:45,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 20:46:45,405 INFO L168 Benchmark]: Toolchain (without parser) took 31351.29 ms. Allocated memory was 52.4 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 33.6 MB in the beginning and 838.1 MB in the end (delta: -804.5 MB). Peak memory consumption was 217.8 MB. Max. memory is 16.1 GB. [2021-08-25 20:46:45,406 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 52.4 MB. Free memory was 34.2 MB in the beginning and 34.1 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:46:45,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.48 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 33.5 MB in the beginning and 44.8 MB in the end (delta: -11.4 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2021-08-25 20:46:45,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.17 ms. Allocated memory is still 75.5 MB. Free memory was 44.8 MB in the beginning and 30.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-25 20:46:45,407 INFO L168 Benchmark]: Boogie Preprocessor took 124.60 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 30.1 MB in the beginning and 49.2 MB in the end (delta: -19.0 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-08-25 20:46:45,407 INFO L168 Benchmark]: RCFGBuilder took 1962.61 ms. Allocated memory was 92.3 MB in the beginning and 167.8 MB in the end (delta: 75.5 MB). Free memory was 49.2 MB in the beginning and 93.2 MB in the end (delta: -44.0 MB). Peak memory consumption was 51.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:46:45,408 INFO L168 Benchmark]: TraceAbstraction took 28126.14 ms. Allocated memory was 167.8 MB in the beginning and 1.1 GB in the end (delta: 906.0 MB). Free memory was 92.1 MB in the beginning and 874.8 MB in the end (delta: -782.7 MB). Peak memory consumption was 697.9 MB. Max. memory is 16.1 GB. [2021-08-25 20:46:45,408 INFO L168 Benchmark]: Witness Printer took 200.86 ms. Allocated memory is still 1.1 GB. Free memory was 874.8 MB in the beginning and 838.1 MB in the end (delta: 36.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-08-25 20:46:45,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 52.4 MB. Free memory was 34.2 MB in the beginning and 34.1 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 805.48 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 33.5 MB in the beginning and 44.8 MB in the end (delta: -11.4 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 125.17 ms. Allocated memory is still 75.5 MB. Free memory was 44.8 MB in the beginning and 30.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 124.60 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 30.1 MB in the beginning and 49.2 MB in the end (delta: -19.0 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1962.61 ms. Allocated memory was 92.3 MB in the beginning and 167.8 MB in the end (delta: 75.5 MB). Free memory was 49.2 MB in the beginning and 93.2 MB in the end (delta: -44.0 MB). Peak memory consumption was 51.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28126.14 ms. Allocated memory was 167.8 MB in the beginning and 1.1 GB in the end (delta: 906.0 MB). Free memory was 92.1 MB in the beginning and 874.8 MB in the end (delta: -782.7 MB). Peak memory consumption was 697.9 MB. Max. memory is 16.1 GB. * Witness Printer took 200.86 ms. Allocated memory is still 1.1 GB. Free memory was 874.8 MB in the beginning and 838.1 MB in the end (delta: 36.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1546]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28029.8ms, OverallIterations: 17, TraceHistogramMax: 6, EmptinessCheckTime: 275.1ms, AutomataDifference: 15498.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 513.3ms, InitialAbstractionConstructionTime: 20.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3036 SDtfs, 3842 SDslu, 389 SDs, 0 SdLazy, 10591 SolverSat, 1870 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9978.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1474 GetRequests, 1444 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 121.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20783occurred in iteration=14, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2647.9ms AutomataMinimizationTime, 17 MinimizatonAttempts, 9249 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 209 NumberOfFragments, 315 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6670 FormulaSimplificationTreeSizeReduction, 163.6ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 232 FormulaSimplificationTreeSizeReductionInter, 341.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 407.9ms SsaConstructionTime, 916.3ms SatisfiabilityAnalysisTime, 5150.8ms InterpolantComputationTime, 5692 NumberOfCodeBlocks, 5692 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 5670 ConstructedInterpolants, 0 QuantifiedInterpolants, 11513 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2801 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 22 InterpolantComputations, 17 PerfectInterpolantSequences, 3291/3321 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((((((((((a5 == 1 && a12 == 1) && a3 <= 1) && 1 <= a3) && a26 <= 0) || (((a5 == 1 && 1 <= a3) && a26 <= 0) && a11 == 0)) || ((((a26 == 1 && a5 == 1) && a3 <= 1) && 1 <= a3) && a27 == 1)) || (((a26 == 1 && a5 == 1) && 1 <= a3) && a11 == 1)) || ((a26 == 1 && a5 == 1) && a3 == 0)) || ((((a5 == 1 && 1 <= a3) && a26 <= 0) && a11 == 1) && a6 <= 0)) || ((a5 == 1 && a27 == 1) && a3 == 0)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 1) && 1 <= a3)) || (((a26 == 1 && a5 == 1) && 1 <= a3) && a11 == 0)) || ((((a5 == 1 && 1 <= a3) && a26 <= 0) && a11 == 1) && a27 == 1)) || ((((a5 == 1 && a12 == 1) && a26 <= 0) && !(a11 == 1)) && a3 == 0) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((a5 == 1 && a12 == 1) && a3 <= 1) && 1 <= a3) && a26 <= 0) || (((a5 == 1 && 1 <= a3) && a26 <= 0) && a11 == 0)) || ((((a26 == 1 && a5 == 1) && a3 <= 1) && 1 <= a3) && a27 == 1)) || (((a26 == 1 && a5 == 1) && 1 <= a3) && a11 == 1)) || ((a26 == 1 && a5 == 1) && a3 == 0)) || ((((a5 == 1 && 1 <= a3) && a26 <= 0) && a11 == 1) && a6 <= 0)) || ((a5 == 1 && a27 == 1) && a3 == 0)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 1) && 1 <= a3)) || (((a26 == 1 && a5 == 1) && 1 <= a3) && a11 == 0)) || ((((a5 == 1 && 1 <= a3) && a26 <= 0) && a11 == 1) && a27 == 1)) || ((((a5 == 1 && a12 == 1) && a26 <= 0) && !(a11 == 1)) && a3 == 0) RESULT: Ultimate proved your program to be correct! [2021-08-25 20:46:45,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...