./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/nla-digbench-scaling/geo3-ll_valuebound2.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 75a16db52462b50c2c5ed914802861437583acdd ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 06:47:53,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 06:47:53,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 06:47:53,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 06:47:53,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 06:47:53,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 06:47:53,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 06:47:53,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 06:47:53,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 06:47:53,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 06:47:53,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 06:47:53,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 06:47:53,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 06:47:53,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 06:47:53,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 06:47:53,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 06:47:53,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 06:47:53,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 06:47:53,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 06:47:53,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 06:47:53,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 06:47:53,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 06:47:53,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 06:47:53,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 06:47:53,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 06:47:53,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 06:47:53,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 06:47:53,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 06:47:53,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 06:47:53,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 06:47:53,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 06:47:53,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 06:47:53,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 06:47:53,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 06:47:53,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 06:47:53,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 06:47:53,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 06:47:53,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 06:47:53,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 06:47:53,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 06:47:53,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 06:47:53,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 06:47:53,477 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 06:47:53,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 06:47:53,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 06:47:53,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 06:47:53,481 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 06:47:53,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 06:47:53,481 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 06:47:53,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 06:47:53,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 06:47:53,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 06:47:53,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 06:47:53,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 06:47:53,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 06:47:53,483 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 06:47:53,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 06:47:53,483 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 06:47:53,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 06:47:53,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 06:47:53,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 06:47:53,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 06:47:53,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 06:47:53,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 06:47:53,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 06:47:53,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 06:47:53,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 06:47:53,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 06:47:53,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 06:47:53,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 06:47:53,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75a16db52462b50c2c5ed914802861437583acdd [2021-07-05 06:47:53,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 06:47:53,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 06:47:53,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 06:47:53,738 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 06:47:53,738 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 06:47:53,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.c [2021-07-05 06:47:53,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ecaf0275/e37127e4797247428d90a74469da4f8d/FLAG74cd212f6 [2021-07-05 06:47:54,133 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 06:47:54,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.c [2021-07-05 06:47:54,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ecaf0275/e37127e4797247428d90a74469da4f8d/FLAG74cd212f6 [2021-07-05 06:47:54,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ecaf0275/e37127e4797247428d90a74469da4f8d [2021-07-05 06:47:54,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 06:47:54,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 06:47:54,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 06:47:54,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 06:47:54,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 06:47:54,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405608e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54, skipping insertion in model container [2021-07-05 06:47:54,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 06:47:54,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 06:47:54,280 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.c[525,538] [2021-07-05 06:47:54,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 06:47:54,299 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 06:47:54,308 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.c[525,538] [2021-07-05 06:47:54,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 06:47:54,330 INFO L208 MainTranslator]: Completed translation [2021-07-05 06:47:54,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54 WrapperNode [2021-07-05 06:47:54,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 06:47:54,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 06:47:54,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 06:47:54,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 06:47:54,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 06:47:54,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 06:47:54,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 06:47:54,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 06:47:54,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 06:47:54,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 06:47:54,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 06:47:54,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 06:47:54,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54" (1/1) ... [2021-07-05 06:47:54,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 06:47:54,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 06:47:54,439 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) [2021-07-05 06:47:54,468 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 [2021-07-05 06:47:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 06:47:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 06:47:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 06:47:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 06:47:54,684 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 06:47:54,684 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-07-05 06:47:54,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 06:47:54 BoogieIcfgContainer [2021-07-05 06:47:54,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 06:47:54,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 06:47:54,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 06:47:54,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 06:47:54,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 06:47:54" (1/3) ... [2021-07-05 06:47:54,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297d16c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 06:47:54, skipping insertion in model container [2021-07-05 06:47:54,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:47:54" (2/3) ... [2021-07-05 06:47:54,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297d16c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 06:47:54, skipping insertion in model container [2021-07-05 06:47:54,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 06:47:54" (3/3) ... [2021-07-05 06:47:54,690 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound2.c [2021-07-05 06:47:54,694 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 06:47:54,708 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-05 06:47:54,756 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 06:47:54,759 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 06:47:54,760 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 06:47:54,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 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) [2021-07-05 06:47:54,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-05 06:47:54,771 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:47:54,771 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:47:54,771 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:47:54,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:47:54,776 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-07-05 06:47:54,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:47:54,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769675416] [2021-07-05 06:47:54,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:47:54,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:47:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 06:47:54,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:54,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:54,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:54,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:54,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 06:47:54,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:47:54,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769675416] [2021-07-05 06:47:54,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769675416] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 06:47:54,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 06:47:54,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 06:47:54,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315637118] [2021-07-05 06:47:54,904 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-05 06:47:54,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:47:54,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-05 06:47:54,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 06:47:54,916 INFO L87 Difference]: Start difference. First operand has 21 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-07-05 06:47:54,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:47:54,926 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2021-07-05 06:47:54,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-05 06:47:54,927 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-07-05 06:47:54,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:47:54,931 INFO L225 Difference]: With dead ends: 39 [2021-07-05 06:47:54,931 INFO L226 Difference]: Without dead ends: 13 [2021-07-05 06:47:54,933 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 06:47:54,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-07-05 06:47:54,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-07-05 06:47:54,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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) [2021-07-05 06:47:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-07-05 06:47:54,952 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2021-07-05 06:47:54,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:47:54,953 INFO L442 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-07-05 06:47:54,953 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-07-05 06:47:54,953 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-07-05 06:47:54,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-05 06:47:54,953 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:47:54,954 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:47:54,954 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 06:47:54,954 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:47:54,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:47:54,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-07-05 06:47:54,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:47:54,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003576770] [2021-07-05 06:47:54,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:47:54,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:47:54,992 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-05 06:47:54,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396818891] [2021-07-05 06:47:54,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:47:54,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:47:54,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 06:47:54,997 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) [2021-07-05 06:47:54,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-05 06:47:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 06:47:55,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-05 06:47:55,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 06:47:55,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:55,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:55,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:55,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:55,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-05 06:47:55,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:47:55,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 06:47:55,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-05 06:47:55,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:47:55,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:47:55,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:47:55,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:47:55,210 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-07-05 06:47:55,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 06:47:55,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:47:55,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003576770] [2021-07-05 06:47:55,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-07-05 06:47:55,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396818891] [2021-07-05 06:47:55,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396818891] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 06:47:55,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 06:47:55,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 06:47:55,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173643623] [2021-07-05 06:47:55,216 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 06:47:55,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:47:55,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 06:47:55,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 06:47:55,217 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-07-05 06:47:55,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:47:55,243 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-07-05 06:47:55,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 06:47:55,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-07-05 06:47:55,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:47:55,244 INFO L225 Difference]: With dead ends: 19 [2021-07-05 06:47:55,244 INFO L226 Difference]: Without dead ends: 17 [2021-07-05 06:47:55,244 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 06:47:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-07-05 06:47:55,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-07-05 06:47:55,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2021-07-05 06:47:55,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-07-05 06:47:55,246 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2021-07-05 06:47:55,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:47:55,246 INFO L442 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-07-05 06:47:55,247 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-07-05 06:47:55,247 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-07-05 06:47:55,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-05 06:47:55,247 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:47:55,247 INFO L525 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:47:55,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-07-05 06:47:55,461 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:47:55,461 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:47:55,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:47:55,462 INFO L82 PathProgramCache]: Analyzing trace with hash -937492348, now seen corresponding path program 1 times [2021-07-05 06:47:55,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:47:55,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097321612] [2021-07-05 06:47:55,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:47:55,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:47:55,472 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-05 06:47:55,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454808544] [2021-07-05 06:47:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:47:55,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:47:55,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 06:47:55,473 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) [2021-07-05 06:47:55,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-07-05 06:47:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 06:47:55,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-05 06:47:55,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 06:47:55,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:55,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:55,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:55,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:55,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-05 06:47:55,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-05 06:47:55,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-05 06:47:55,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-07-05 06:47:55,607 INFO L142 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size [2021-07-05 06:47:55,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 06:47:55,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:55,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:55,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:55,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 06:47:55,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 06:47:55,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 06:47:55,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 06:47:55,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-05 06:47:55,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:47:55,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-05 06:47:55,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-05 06:47:55,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:47:55,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:47:55,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:47:55,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:47:55,677 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-07-05 06:47:55,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:55,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 06:47:55,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:47:55,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097321612] [2021-07-05 06:47:55,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-07-05 06:47:55,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454808544] [2021-07-05 06:47:55,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454808544] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 06:47:55,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-07-05 06:47:55,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-07-05 06:47:55,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550290022] [2021-07-05 06:47:55,680 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 06:47:55,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:47:55,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 06:47:55,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-05 06:47:55,681 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-07-05 06:47:55,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:47:55,856 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-07-05 06:47:55,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 06:47:55,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2021-07-05 06:47:55,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:47:55,861 INFO L225 Difference]: With dead ends: 22 [2021-07-05 06:47:55,861 INFO L226 Difference]: Without dead ends: 20 [2021-07-05 06:47:55,861 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 71.6ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-05 06:47:55,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-07-05 06:47:55,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-07-05 06:47:55,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 06:47:55,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-07-05 06:47:55,864 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2021-07-05 06:47:55,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:47:55,864 INFO L442 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-07-05 06:47:55,864 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-07-05 06:47:55,864 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-07-05 06:47:55,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-07-05 06:47:55,864 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:47:55,864 INFO L525 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:47:55,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-07-05 06:47:56,072 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-07-05 06:47:56,073 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:47:56,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:47:56,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1342734009, now seen corresponding path program 2 times [2021-07-05 06:47:56,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:47:56,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426923768] [2021-07-05 06:47:56,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:47:56,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:47:56,081 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-05 06:47:56,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976194786] [2021-07-05 06:47:56,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-07-05 06:47:56,081 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:47:56,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 06:47:56,084 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) [2021-07-05 06:47:56,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-07-05 06:47:56,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-05 06:47:56,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-05 06:47:56,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-05 06:47:56,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 06:47:56,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 06:47:56,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 06:47:56,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 06:47:56,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 06:47:56,188 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-07-05 06:47:56,195 INFO L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-07-05 06:47:56,195 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-07-05 06:47:56,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:47:56,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:47:56,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:47:56,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:47:56,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 06:47:56,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-05 06:47:56,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:47:56,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 06:47:56,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-05 06:47:56,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-05 06:47:56,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:47:56,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:47:56,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 06:47:56,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:47:56,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:47:56,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:47:56,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 06:47:56,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 06:47:56,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 06:47:56,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:47:56,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426923768] [2021-07-05 06:47:56,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-07-05 06:47:56,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976194786] [2021-07-05 06:47:56,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976194786] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 06:47:56,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 06:47:56,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-05 06:47:56,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696686344] [2021-07-05 06:47:56,261 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 06:47:56,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:47:56,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 06:47:56,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-07-05 06:47:56,261 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 06:47:56,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:47:56,326 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-07-05 06:47:56,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 06:47:56,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-07-05 06:47:56,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:47:56,327 INFO L225 Difference]: With dead ends: 19 [2021-07-05 06:47:56,327 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 06:47:56,327 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 83.4ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-07-05 06:47:56,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 06:47:56,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 06:47:56,327 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) [2021-07-05 06:47:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 06:47:56,327 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-07-05 06:47:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:47:56,328 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 06:47:56,328 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 06:47:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 06:47:56,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 06:47:56,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 06:47:56,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:47:56,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:47:56,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:47:56,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:47:56,407 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-07-05 06:47:56,408 INFO L762 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-07-05 06:47:56,408 INFO L758 garLoopResultBuilder]: At program point L15-2(lines 39 40) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~k~0 2)) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 0 ULTIMATE.start_main_~k~0))) (or (and .cse0 (<= 2 ULTIMATE.start_main_~c~0) .cse1 .cse2) (and .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)) (= ULTIMATE.start_main_~y~0 1) .cse1 .cse2))) [2021-07-05 06:47:56,408 INFO L762 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-07-05 06:47:56,408 INFO L762 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-07-05 06:47:56,408 INFO L762 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-07-05 06:47:56,408 INFO L765 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: true [2021-07-05 06:47:56,408 INFO L762 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2021-07-05 06:47:56,408 INFO L758 garLoopResultBuilder]: At program point L36-2(lines 36 45) the Hoare annotation is: (let ((.cse4 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0))) (let ((.cse0 (<= ULTIMATE.start_main_~k~0 2)) (.cse1 (= ULTIMATE.start_main_~az~0 .cse4)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse3 (<= 0 ULTIMATE.start_main_~k~0))) (or (and .cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= 1 ULTIMATE.start_main_~c~0) .cse1 (= ULTIMATE.start_main_~y~0 1) .cse2 .cse3) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~a~0 .cse4)) .cse1 (<= 2 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) .cse2 .cse3)))) [2021-07-05 06:47:56,408 INFO L762 garLoopResultBuilder]: For program point L36-3(lines 36 45) no Hoare annotation was computed. [2021-07-05 06:47:56,409 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 06:47:56,409 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 06:47:56,409 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 06:47:56,409 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-07-05 06:47:56,409 INFO L762 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-07-05 06:47:56,409 INFO L762 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-07-05 06:47:56,409 INFO L762 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-07-05 06:47:56,409 INFO L762 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-07-05 06:47:56,409 INFO L762 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2021-07-05 06:47:56,409 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 06:47:56,409 INFO L765 garLoopResultBuilder]: At program point L47(lines 21 48) the Hoare annotation is: true [2021-07-05 06:47:56,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-07-05 06:47:56,628 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:47:56,629 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 06:47:56,631 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/2) [2021-07-05 06:47:56,633 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 06:47:56,633 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 06:47:56,633 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 06:47:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 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) [2021-07-05 06:47:56,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-05 06:47:56,634 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:47:56,634 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:47:56,634 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:47:56,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:47:56,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1658622963, now seen corresponding path program 1 times [2021-07-05 06:47:56,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:47:56,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703103099] [2021-07-05 06:47:56,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:47:56,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:47:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 06:47:56,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 06:47:56,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:47:56,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703103099] [2021-07-05 06:47:56,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703103099] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 06:47:56,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 06:47:56,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 06:47:56,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914781705] [2021-07-05 06:47:56,656 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-05 06:47:56,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:47:56,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-05 06:47:56,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 06:47:56,657 INFO L87 Difference]: Start difference. First operand has 21 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 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 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-07-05 06:47:56,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:47:56,658 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2021-07-05 06:47:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-05 06:47:56,659 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2021-07-05 06:47:56,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:47:56,659 INFO L225 Difference]: With dead ends: 39 [2021-07-05 06:47:56,659 INFO L226 Difference]: Without dead ends: 15 [2021-07-05 06:47:56,660 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 06:47:56,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-07-05 06:47:56,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-07-05 06:47:56,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2021-07-05 06:47:56,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-07-05 06:47:56,661 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2021-07-05 06:47:56,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:47:56,662 INFO L442 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-07-05 06:47:56,662 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-07-05 06:47:56,662 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-07-05 06:47:56,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-05 06:47:56,662 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:47:56,662 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:47:56,663 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-05 06:47:56,663 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:47:56,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:47:56,663 INFO L82 PathProgramCache]: Analyzing trace with hash -937533063, now seen corresponding path program 1 times [2021-07-05 06:47:56,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:47:56,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981061993] [2021-07-05 06:47:56,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:47:56,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:47:56,670 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-05 06:47:56,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1557617853] [2021-07-05 06:47:56,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:47:56,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:47:56,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 06:47:56,673 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) [2021-07-05 06:47:56,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-07-05 06:47:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 06:47:56,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-05 06:47:56,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 06:47:56,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 06:47:56,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 06:47:56,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-05 06:47:56,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-05 06:47:56,739 INFO L142 QuantifierPusher]: treesize reduction 18, result has 51.4 percent of original size [2021-07-05 06:47:56,739 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-07-05 06:47:56,740 INFO L142 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-07-05 06:47:56,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:47:56,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:47:56,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:47:56,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:47:56,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:47:56,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:47:56,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:47:56,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-05 06:47:56,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:47:56,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 06:47:56,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 06:47:56,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:47:56,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:47:56,768 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-07-05 06:47:56,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:47:56,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:47:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 06:47:56,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:47:56,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981061993] [2021-07-05 06:47:56,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-07-05 06:47:56,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557617853] [2021-07-05 06:47:56,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557617853] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 06:47:56,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 06:47:56,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 06:47:56,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714780864] [2021-07-05 06:47:56,771 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 06:47:56,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:47:56,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 06:47:56,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 06:47:56,771 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-07-05 06:47:57,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:47:57,181 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-07-05 06:47:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 06:47:57,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2021-07-05 06:47:57,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:47:57,182 INFO L225 Difference]: With dead ends: 16 [2021-07-05 06:47:57,182 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 06:47:57,182 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.7ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-07-05 06:47:57,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 06:47:57,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 06:47:57,182 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) [2021-07-05 06:47:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 06:47:57,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-07-05 06:47:57,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:47:57,183 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 06:47:57,183 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-07-05 06:47:57,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 06:47:57,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 06:47:57,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 06:47:57,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:47:57,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:47:57,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:47:57,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:47:57,199 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-07-05 06:47:57,199 INFO L762 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-07-05 06:47:57,199 INFO L758 garLoopResultBuilder]: At program point L15-2(lines 39 40) the Hoare annotation is: (let ((.cse3 (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (and (let ((.cse0 (<= ULTIMATE.start_main_~k~0 2)) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 0 ULTIMATE.start_main_~k~0))) (or (and .cse0 (<= 2 ULTIMATE.start_main_~c~0) .cse1 .cse2) (and .cse0 .cse3 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)) (= ULTIMATE.start_main_~y~0 1) .cse1 .cse2))) .cse3 (= (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0)) (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0))))) [2021-07-05 06:47:57,199 INFO L762 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-07-05 06:47:57,199 INFO L762 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-07-05 06:47:57,199 INFO L762 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-07-05 06:47:57,199 INFO L765 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: true [2021-07-05 06:47:57,199 INFO L762 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2021-07-05 06:47:57,199 INFO L758 garLoopResultBuilder]: At program point L36-2(lines 36 45) the Hoare annotation is: (and (let ((.cse4 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0))) (let ((.cse0 (<= ULTIMATE.start_main_~k~0 2)) (.cse1 (= ULTIMATE.start_main_~az~0 .cse4)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse3 (<= 0 ULTIMATE.start_main_~k~0))) (or (and .cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= 1 ULTIMATE.start_main_~c~0) .cse1 (= ULTIMATE.start_main_~y~0 1) .cse2 .cse3) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~a~0 .cse4)) .cse1 (<= 2 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) .cse2 .cse3)))) (= (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0)) (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0)))) [2021-07-05 06:47:57,199 INFO L762 garLoopResultBuilder]: For program point L36-3(lines 36 45) no Hoare annotation was computed. [2021-07-05 06:47:57,199 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 06:47:57,199 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 06:47:57,199 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 06:47:57,200 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-07-05 06:47:57,200 INFO L762 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-07-05 06:47:57,200 INFO L762 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-07-05 06:47:57,200 INFO L762 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-07-05 06:47:57,200 INFO L762 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-07-05 06:47:57,200 INFO L762 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2021-07-05 06:47:57,200 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 06:47:57,200 INFO L765 garLoopResultBuilder]: At program point L47(lines 21 48) the Hoare annotation is: true [2021-07-05 06:47:57,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-07-05 06:47:57,408 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:47:57,409 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 06:47:57,409 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION was SAFE (2/2) [2021-07-05 06:47:57,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 06:47:57 BoogieIcfgContainer [2021-07-05 06:47:57,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 06:47:57,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 06:47:57,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 06:47:57,422 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 06:47:57,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 06:47:54" (3/4) ... [2021-07-05 06:47:57,427 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-05 06:47:57,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-07-05 06:47:57,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-05 06:47:57,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-05 06:47:57,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-05 06:47:57,457 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 06:47:57,457 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 06:47:57,457 INFO L168 Benchmark]: Toolchain (without parser) took 3305.11 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 46.3 MB in the beginning and 76.3 MB in the end (delta: -30.0 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. [2021-07-05 06:47:57,458 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 65.0 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 06:47:57,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.84 ms. Allocated memory is still 65.0 MB. Free memory was 46.2 MB in the beginning and 36.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-05 06:47:57,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.05 ms. Allocated memory is still 65.0 MB. Free memory was 36.1 MB in the beginning and 49.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-07-05 06:47:57,458 INFO L168 Benchmark]: Boogie Preprocessor took 29.60 ms. Allocated memory is still 65.0 MB. Free memory was 49.2 MB in the beginning and 48.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 06:47:57,458 INFO L168 Benchmark]: RCFGBuilder took 266.61 ms. Allocated memory is still 65.0 MB. Free memory was 48.1 MB in the beginning and 34.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-05 06:47:57,458 INFO L168 Benchmark]: TraceAbstraction took 2732.94 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 34.1 MB in the beginning and 33.4 MB in the end (delta: 772.7 kB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2021-07-05 06:47:57,458 INFO L168 Benchmark]: Witness Printer took 37.62 ms. Allocated memory is still 96.5 MB. Free memory was 33.4 MB in the beginning and 76.3 MB in the end (delta: -42.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 06:47:57,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 65.0 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 177.84 ms. Allocated memory is still 65.0 MB. Free memory was 46.2 MB in the beginning and 36.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.05 ms. Allocated memory is still 65.0 MB. Free memory was 36.1 MB in the beginning and 49.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.60 ms. Allocated memory is still 65.0 MB. Free memory was 49.2 MB in the beginning and 48.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 266.61 ms. Allocated memory is still 65.0 MB. Free memory was 48.1 MB in the beginning and 34.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2732.94 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 34.1 MB in the beginning and 33.4 MB in the end (delta: 772.7 kB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. * Witness Printer took 37.62 ms. Allocated memory is still 96.5 MB. Free memory was 33.4 MB in the beginning and 76.3 MB in the end (delta: -42.9 MB). Peak memory consumption was 2.1 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 - 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: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: 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 for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1877.3ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 6.2ms, AutomataDifference: 303.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 77.1ms, InitialAbstractionConstructionTime: 5.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 53 SDtfs, 15 SDslu, 53 SDs, 0 SdLazy, 45 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 172.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 178.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 15.0ms AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 99 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 11.5ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 61.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 30.8ms SsaConstructionTime, 86.0ms SatisfiabilityAnalysisTime, 481.3ms InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 17 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 7/9 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 776.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 1.0ms, AutomataDifference: 414.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 15.6ms, InitialAbstractionConstructionTime: 0.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 30 SDtfs, 5 SDslu, 18 SDs, 0 SdLazy, 10 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 389.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 9 NumberOfFragments, 28 HoareAnnotationTreeSize, 4 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 4.7ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 10.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 9.8ms SsaConstructionTime, 14.0ms SatisfiabilityAnalysisTime, 76.7ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 8 NumberOfNonLiveVariables, 79 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((k <= 2 && a == x) && 1 <= c) && az == a * z) && y == 1) && cond == 1) && 0 <= k) || (((((((1 <= cond && k <= 2) && x == a + a * z) && az == a * z) && 2 <= c) && z == y) && cond == 1) && 0 <= k)) && x + az * y == a + z * x - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((k <= 2 && 2 <= c) && cond == 1) && 0 <= k) || (((((((k <= 2 && 1 == cond) && a == x) && 1 <= c) && az == a * z) && y == 1) && cond == 1) && 0 <= k)) && 1 == cond) && x + az * y == a + z * x RESULT: Ultimate proved your program to be correct! [2021-07-05 06:47:57,469 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...