./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound100.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/geo1-ll_unwindbound100.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 20cb52285d677c71a290583fd56e67c135d9ae79 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 06:32:39,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 06:32:39,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 06:32:39,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 06:32:39,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 06:32:39,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 06:32:39,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 06:32:39,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 06:32:39,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 06:32:39,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 06:32:39,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 06:32:39,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 06:32:39,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 06:32:39,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 06:32:39,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 06:32:39,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 06:32:39,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 06:32:39,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 06:32:39,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 06:32:39,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 06:32:39,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 06:32:39,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 06:32:39,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 06:32:39,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 06:32:39,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 06:32:39,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 06:32:39,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 06:32:39,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 06:32:39,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 06:32:39,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 06:32:39,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 06:32:39,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 06:32:39,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 06:32:39,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 06:32:39,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 06:32:39,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 06:32:39,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 06:32:39,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 06:32:39,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 06:32:39,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 06:32:39,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 06:32:39,472 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 06:32:39,499 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 06:32:39,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 06:32:39,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 06:32:39,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 06:32:39,501 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 06:32:39,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 06:32:39,501 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 06:32:39,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 06:32:39,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 06:32:39,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 06:32:39,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 06:32:39,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 06:32:39,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 06:32:39,502 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 06:32:39,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 06:32:39,502 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 06:32:39,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 06:32:39,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 06:32:39,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 06:32:39,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 06:32:39,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 06:32:39,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 06:32:39,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 06:32:39,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 06:32:39,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 06:32:39,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 06:32:39,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 06:32:39,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 06:32:39,503 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20cb52285d677c71a290583fd56e67c135d9ae79 [2021-07-05 06:32:39,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 06:32:39,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 06:32:39,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 06:32:39,755 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 06:32:39,756 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 06:32:39,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound100.c [2021-07-05 06:32:39,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50a5f8d16/7564dad320e94b7b8cc436abbcea35ab/FLAG8bc6f95e1 [2021-07-05 06:32:40,148 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 06:32:40,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound100.c [2021-07-05 06:32:40,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50a5f8d16/7564dad320e94b7b8cc436abbcea35ab/FLAG8bc6f95e1 [2021-07-05 06:32:40,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50a5f8d16/7564dad320e94b7b8cc436abbcea35ab [2021-07-05 06:32:40,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 06:32:40,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 06:32:40,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 06:32:40,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 06:32:40,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 06:32:40,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@117a5f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40, skipping insertion in model container [2021-07-05 06:32:40,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 06:32:40,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 06:32:40,302 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/geo1-ll_unwindbound100.c[546,559] [2021-07-05 06:32:40,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 06:32:40,324 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 06:32:40,334 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/geo1-ll_unwindbound100.c[546,559] [2021-07-05 06:32:40,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 06:32:40,360 INFO L208 MainTranslator]: Completed translation [2021-07-05 06:32:40,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40 WrapperNode [2021-07-05 06:32:40,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 06:32:40,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 06:32:40,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 06:32:40,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 06:32:40,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 06:32:40,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 06:32:40,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 06:32:40,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 06:32:40,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 06:32:40,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 06:32:40,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 06:32:40,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 06:32:40,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40" (1/1) ... [2021-07-05 06:32:40,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 06:32:40,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 06:32:40,441 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 06:32:40,468 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 06:32:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 06:32:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 06:32:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 06:32:40,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 06:32:40,650 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 06:32:40,650 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-07-05 06:32:40,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 06:32:40 BoogieIcfgContainer [2021-07-05 06:32:40,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 06:32:40,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 06:32:40,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 06:32:40,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 06:32:40,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 06:32:40" (1/3) ... [2021-07-05 06:32:40,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627555e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 06:32:40, skipping insertion in model container [2021-07-05 06:32:40,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 06:32:40" (2/3) ... [2021-07-05 06:32:40,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627555e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 06:32:40, skipping insertion in model container [2021-07-05 06:32:40,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 06:32:40" (3/3) ... [2021-07-05 06:32:40,655 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound100.c [2021-07-05 06:32:40,659 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 06:32:40,659 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-05 06:32:40,686 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 06:32:40,689 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 06:32:40,689 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 06:32:40,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 19 states have internal predecessors, (26), 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 06:32:40,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 06:32:40,700 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:32:40,700 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:32:40,700 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:32:40,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:32:40,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1236199694, now seen corresponding path program 1 times [2021-07-05 06:32:40,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:32:40,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624114574] [2021-07-05 06:32:40,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:32:40,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:32:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 06:32:40,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:40,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:40,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:40,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:40,877 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 06:32:40,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:32:40,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624114574] [2021-07-05 06:32:40,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624114574] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 06:32:40,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 06:32:40,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 06:32:40,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754997450] [2021-07-05 06:32:40,884 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-05 06:32:40,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:32:40,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-05 06:32:40,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 06:32:40,900 INFO L87 Difference]: Start difference. First operand has 20 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 19 states have internal predecessors, (26), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 06:32:40,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:32:40,910 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2021-07-05 06:32:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-05 06:32:40,911 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-07-05 06:32:40,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:32:40,915 INFO L225 Difference]: With dead ends: 37 [2021-07-05 06:32:40,915 INFO L226 Difference]: Without dead ends: 12 [2021-07-05 06:32:40,917 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 06:32:40,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-07-05 06:32:40,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-07-05 06:32:40,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 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 06:32:40,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-07-05 06:32:40,936 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2021-07-05 06:32:40,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:32:40,937 INFO L442 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-07-05 06:32:40,937 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 06:32:40,937 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-07-05 06:32:40,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 06:32:40,938 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:32:40,938 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:32:40,939 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 06:32:40,939 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:32:40,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:32:40,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1988288018, now seen corresponding path program 1 times [2021-07-05 06:32:40,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:32:40,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798719643] [2021-07-05 06:32:40,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:32:40,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:32:40,967 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-05 06:32:40,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639061584] [2021-07-05 06:32:40,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:32:40,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:32:40,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 06:32:40,975 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 06:32:40,976 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 06:32:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 06:32:41,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-05 06:32:41,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 06:32:41,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-05 06:32:41,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:41,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-05 06:32:41,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,150 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-07-05 06:32:41,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,153 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 06:32:41,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:32:41,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798719643] [2021-07-05 06:32:41,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-07-05 06:32:41,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639061584] [2021-07-05 06:32:41,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639061584] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 06:32:41,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 06:32:41,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 06:32:41,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971041316] [2021-07-05 06:32:41,156 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 06:32:41,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:32:41,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 06:32:41,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 06:32:41,157 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 06:32:41,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:32:41,182 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-07-05 06:32:41,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 06:32:41,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2021-07-05 06:32:41,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:32:41,183 INFO L225 Difference]: With dead ends: 20 [2021-07-05 06:32:41,183 INFO L226 Difference]: Without dead ends: 18 [2021-07-05 06:32:41,184 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 06:32:41,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-07-05 06:32:41,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2021-07-05 06:32:41,187 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 06:32:41,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-07-05 06:32:41,188 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2021-07-05 06:32:41,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:32:41,188 INFO L442 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-07-05 06:32:41,189 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 06:32:41,189 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-07-05 06:32:41,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-05 06:32:41,189 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:32:41,190 INFO L525 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:32:41,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-07-05 06:32:41,400 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 06:32:41,404 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:32:41,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:32:41,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1782419994, now seen corresponding path program 1 times [2021-07-05 06:32:41,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:32:41,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221355325] [2021-07-05 06:32:41,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:32:41,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:32:41,413 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-05 06:32:41,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [108081627] [2021-07-05 06:32:41,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:32:41,414 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:32:41,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 06:32:41,415 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 06:32:41,416 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 06:32:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 06:32:41,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-05 06:32:41,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 06:32:41,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:32:41,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:32:41,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:32:41,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:32:41,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:32:41,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:32:41,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:32:41,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 06:32:41,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-05 06:32:41,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:41,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-05 06:32:41,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-05 06:32:41,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:41,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,542 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-07-05 06:32:41,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 06:32:41,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:32:41,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221355325] [2021-07-05 06:32:41,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-07-05 06:32:41,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108081627] [2021-07-05 06:32:41,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108081627] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 06:32:41,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-07-05 06:32:41,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-07-05 06:32:41,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213349162] [2021-07-05 06:32:41,546 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 06:32:41,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:32:41,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 06:32:41,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 06:32:41,546 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 06:32:41,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:32:41,598 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-07-05 06:32:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 06:32:41,599 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 06:32:41,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:32:41,599 INFO L225 Difference]: With dead ends: 24 [2021-07-05 06:32:41,599 INFO L226 Difference]: Without dead ends: 22 [2021-07-05 06:32:41,600 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 29.2ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-05 06:32:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-07-05 06:32:41,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2021-07-05 06:32:41,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 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 06:32:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-07-05 06:32:41,603 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2021-07-05 06:32:41,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:32:41,604 INFO L442 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-07-05 06:32:41,604 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 06:32:41,605 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-07-05 06:32:41,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 06:32:41,605 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:32:41,605 INFO L525 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:32:41,622 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 06:32:41,812 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 06:32:41,813 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:32:41,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:32:41,813 INFO L82 PathProgramCache]: Analyzing trace with hash 397544518, now seen corresponding path program 2 times [2021-07-05 06:32:41,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:32:41,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414867969] [2021-07-05 06:32:41,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:32:41,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:32:41,822 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-05 06:32:41,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5107139] [2021-07-05 06:32:41,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-07-05 06:32:41,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:32:41,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 06:32:41,823 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 06:32:41,825 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 06:32:41,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-05 06:32:41,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-05 06:32:41,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-05 06:32:41,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 06:32:41,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:41,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:41,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:41,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 06:32:41,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 06:32:41,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 06:32:41,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 06:32:41,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 06:32:41,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 06:32:41,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 06:32:41,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 06:32:41,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-05 06:32:41,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 06:32:41,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-05 06:32:41,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-05 06:32:41,934 INFO L142 QuantifierPusher]: treesize reduction 16, result has 57.9 percent of original size [2021-07-05 06:32:41,935 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size 18 [2021-07-05 06:32:41,936 INFO L142 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-07-05 06:32:41,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 06:32:41,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 06:32:41,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 06:32:41,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-05 06:32:41,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-05 06:32:41,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-05 06:32:41,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:41,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-05 06:32:42,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-05 06:32:42,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-05 06:32:42,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-05 06:32:42,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-05 06:32:42,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-07-05 06:32:42,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:42,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-07-05 06:32:42,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-07-05 06:32:42,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:42,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,079 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-07-05 06:32:42,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:42,091 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:42,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:42,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,104 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-07-05 06:32:42,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:42,117 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:42,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:42,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-05 06:32:42,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:42,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-05 06:32:42,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-07-05 06:32:42,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:42,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-07-05 06:32:42,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-07-05 06:32:42,135 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-07-05 06:32:42,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:42,136 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:42,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:42,188 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-07-05 06:32:42,188 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-07-05 06:32:42,189 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-07-05 06:32:42,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:42,192 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:42,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,194 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-07-05 06:32:42,195 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-07-05 06:32:42,195 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-07-05 06:32:42,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:42,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:42,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:42,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:42,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-05 06:32:42,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:42,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:42,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:42,208 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 06:32:42,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:32:42,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414867969] [2021-07-05 06:32:42,208 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-07-05 06:32:42,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5107139] [2021-07-05 06:32:42,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5107139] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 06:32:42,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-07-05 06:32:42,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-07-05 06:32:42,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009223365] [2021-07-05 06:32:42,209 INFO L425 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-05 06:32:42,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:32:42,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-05 06:32:42,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-05 06:32:42,210 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 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 06:32:50,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:32:50,339 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-07-05 06:32:50,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-05 06:32:50,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-07-05 06:32:50,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:32:50,340 INFO L225 Difference]: With dead ends: 25 [2021-07-05 06:32:50,340 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 06:32:50,340 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 185.2ms TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-07-05 06:32:50,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 06:32:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 06:32:50,341 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 06:32:50,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 06:32:50,341 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-07-05 06:32:50,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:32:50,341 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 06:32:50,341 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 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 06:32:50,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 06:32:50,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 06:32:50,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 06:32:50,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:50,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:50,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:50,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:50,367 INFO L758 garLoopResultBuilder]: At program point L35-3(lines 35 45) the Hoare annotation is: (or (<= 0 ULTIMATE.start___VERIFIER_assert_~cond) (and (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~x~0 1))) [2021-07-05 06:32:50,367 INFO L762 garLoopResultBuilder]: For program point L35-4(lines 35 45) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point L16(lines 16 19) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L758 garLoopResultBuilder]: At program point L16-2(lines 38 39) the Hoare annotation is: (<= 0 ULTIMATE.start___VERIFIER_assert_~cond) [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point L12(lines 12 14) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L765 garLoopResultBuilder]: At program point L16-5(lines 15 21) the Hoare annotation is: true [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L765 garLoopResultBuilder]: At program point L50(lines 23 51) the Hoare annotation is: true [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point L13-2(line 13) no Hoare annotation was computed. [2021-07-05 06:32:50,368 INFO L762 garLoopResultBuilder]: For program point L35-1(lines 35 45) no Hoare annotation was computed. [2021-07-05 06:32:50,385 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 06:32:50,585 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 06:32:50,585 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 06:32:50,588 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/2) [2021-07-05 06:32:50,589 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 06:32:50,589 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 06:32:50,589 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 06:32:50,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 19 states have internal predecessors, (26), 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 06:32:50,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 06:32:50,590 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:32:50,590 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:32:50,591 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:32:50,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:32:50,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1235525425, now seen corresponding path program 1 times [2021-07-05 06:32:50,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:32:50,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230802986] [2021-07-05 06:32:50,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:32:50,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:32:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 06:32:50,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,620 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 06:32:50,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:32:50,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230802986] [2021-07-05 06:32:50,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230802986] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 06:32:50,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 06:32:50,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 06:32:50,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730877165] [2021-07-05 06:32:50,620 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-05 06:32:50,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:32:50,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-05 06:32:50,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 06:32:50,621 INFO L87 Difference]: Start difference. First operand has 20 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 19 states have internal predecessors, (26), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 06:32:50,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:32:50,622 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2021-07-05 06:32:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-05 06:32:50,623 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-07-05 06:32:50,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:32:50,623 INFO L225 Difference]: With dead ends: 37 [2021-07-05 06:32:50,623 INFO L226 Difference]: Without dead ends: 14 [2021-07-05 06:32:50,623 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 06:32:50,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-07-05 06:32:50,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-07-05 06:32:50,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 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 06:32:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-07-05 06:32:50,624 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2021-07-05 06:32:50,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:32:50,624 INFO L442 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-07-05 06:32:50,624 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 06:32:50,624 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-07-05 06:32:50,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-05 06:32:50,625 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:32:50,625 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:32:50,625 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-05 06:32:50,625 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:32:50,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:32:50,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1507430043, now seen corresponding path program 1 times [2021-07-05 06:32:50,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:32:50,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701050889] [2021-07-05 06:32:50,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:32:50,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:32:50,632 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-05 06:32:50,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [924173616] [2021-07-05 06:32:50,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:32:50,632 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:32:50,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 06:32:50,641 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 06:32:50,642 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 06:32:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 06:32:50,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-05 06:32:50,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 06:32:50,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:50,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:50,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-05 06:32:50,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:50,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 06:32:50,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-05 06:32:50,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:50,743 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-07-05 06:32:50,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:50,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:50,751 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 06:32:50,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:32:50,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701050889] [2021-07-05 06:32:50,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-07-05 06:32:50,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924173616] [2021-07-05 06:32:50,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924173616] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 06:32:50,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 06:32:50,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 06:32:50,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438628099] [2021-07-05 06:32:50,752 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 06:32:50,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:32:50,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 06:32:50,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 06:32:50,753 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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 06:32:50,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:32:50,762 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-07-05 06:32:50,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 06:32:50,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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 06:32:50,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:32:50,763 INFO L225 Difference]: With dead ends: 20 [2021-07-05 06:32:50,763 INFO L226 Difference]: Without dead ends: 16 [2021-07-05 06:32:50,763 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.2ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 06:32:50,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-07-05 06:32:50,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-07-05 06:32:50,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 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 06:32:50,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-07-05 06:32:50,764 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2021-07-05 06:32:50,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:32:50,764 INFO L442 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-07-05 06:32:50,764 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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 06:32:50,764 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-07-05 06:32:50,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-05 06:32:50,765 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 06:32:50,765 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 06:32:50,783 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 06:32:50,983 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:32:50,984 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 06:32:50,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 06:32:50,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1189464386, now seen corresponding path program 1 times [2021-07-05 06:32:50,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 06:32:50,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775809776] [2021-07-05 06:32:50,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:32:50,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 06:32:50,990 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-05 06:32:50,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985184623] [2021-07-05 06:32:50,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 06:32:50,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 06:32:50,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 06:32:50,993 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-05 06:32:50,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-07-05 06:32:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 06:32:51,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-05 06:32:51,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 06:32:51,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-05 06:32:51,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-05 06:32:51,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-05 06:32:51,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-05 06:32:51,063 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-07-05 06:32:51,064 INFO L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-07-05 06:32:51,064 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-07-05 06:32:51,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 06:32:51,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 06:32:51,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 06:32:51,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 06:32:51,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 06:32:51,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 06:32:51,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 06:32:51,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:51,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-05 06:32:51,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-07-05 06:32:51,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:51,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 06:32:51,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 06:32:51,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 06:32:51,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:51,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:51,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 06:32:51,092 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-07-05 06:32:51,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 06:32:51,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 06:32:51,094 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 06:32:51,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 06:32:51,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775809776] [2021-07-05 06:32:51,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-07-05 06:32:51,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985184623] [2021-07-05 06:32:51,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985184623] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 06:32:51,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 06:32:51,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 06:32:51,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517815524] [2021-07-05 06:32:51,095 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 06:32:51,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 06:32:51,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 06:32:51,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 06:32:51,096 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 06:32:51,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 06:32:51,145 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-07-05 06:32:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 06:32:51,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) Word has length 13 [2021-07-05 06:32:51,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 06:32:51,146 INFO L225 Difference]: With dead ends: 16 [2021-07-05 06:32:51,146 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 06:32:51,146 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.1ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-07-05 06:32:51,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 06:32:51,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 06:32:51,146 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 06:32:51,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 06:32:51,146 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-07-05 06:32:51,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 06:32:51,147 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 06:32:51,147 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 06:32:51,147 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 06:32:51,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 06:32:51,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 06:32:51,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:51,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:51,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:51,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 06:32:51,172 INFO L758 garLoopResultBuilder]: At program point L35-3(lines 35 45) the Hoare annotation is: (and (let ((.cse0 (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) 1) (+ ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0)))) (or (and .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (and (<= ~counter~0 0) .cse0))) (or (<= 0 ULTIMATE.start___VERIFIER_assert_~cond) (and (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~x~0 1)))) [2021-07-05 06:32:51,172 INFO L762 garLoopResultBuilder]: For program point L35-4(lines 35 45) no Hoare annotation was computed. [2021-07-05 06:32:51,172 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-07-05 06:32:51,172 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 06:32:51,172 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 06:32:51,172 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 06:32:51,173 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-07-05 06:32:51,173 INFO L762 garLoopResultBuilder]: For program point L16(lines 16 19) no Hoare annotation was computed. [2021-07-05 06:32:51,173 INFO L758 garLoopResultBuilder]: At program point L16-2(lines 38 39) the Hoare annotation is: (and (<= 0 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) 1) (+ ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) [2021-07-05 06:32:51,173 INFO L762 garLoopResultBuilder]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2021-07-05 06:32:51,173 INFO L762 garLoopResultBuilder]: For program point L12(lines 12 14) no Hoare annotation was computed. [2021-07-05 06:32:51,173 INFO L762 garLoopResultBuilder]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2021-07-05 06:32:51,173 INFO L765 garLoopResultBuilder]: At program point L16-5(lines 15 21) the Hoare annotation is: true [2021-07-05 06:32:51,173 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 06:32:51,173 INFO L765 garLoopResultBuilder]: At program point L50(lines 23 51) the Hoare annotation is: true [2021-07-05 06:32:51,173 INFO L762 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed. [2021-07-05 06:32:51,173 INFO L762 garLoopResultBuilder]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2021-07-05 06:32:51,173 INFO L762 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2021-07-05 06:32:51,173 INFO L762 garLoopResultBuilder]: For program point L13-2(line 13) no Hoare annotation was computed. [2021-07-05 06:32:51,173 INFO L762 garLoopResultBuilder]: For program point L35-1(lines 35 45) no Hoare annotation was computed. [2021-07-05 06:32:51,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-07-05 06:32:51,373 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-05 06:32:51,374 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 06:32:51,374 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION was SAFE (2/2) [2021-07-05 06:32:51,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 06:32:51 BoogieIcfgContainer [2021-07-05 06:32:51,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 06:32:51,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 06:32:51,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 06:32:51,384 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 06:32:51,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 06:32:40" (3/4) ... [2021-07-05 06:32:51,386 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-05 06:32:51,391 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-07-05 06:32:51,391 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-05 06:32:51,391 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-05 06:32:51,391 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-05 06:32:51,420 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 06:32:51,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 06:32:51,420 INFO L168 Benchmark]: Toolchain (without parser) took 11238.47 ms. Allocated memory was 73.4 MB in the beginning and 102.8 MB in the end (delta: 29.4 MB). Free memory was 57.9 MB in the beginning and 55.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-07-05 06:32:51,421 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 73.4 MB. Free memory was 55.5 MB in the beginning and 55.5 MB in the end (delta: 60.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 06:32:51,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.01 ms. Allocated memory is still 73.4 MB. Free memory was 57.6 MB in the beginning and 57.8 MB in the end (delta: -197.9 kB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-07-05 06:32:51,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.12 ms. Allocated memory is still 73.4 MB. Free memory was 57.8 MB in the beginning and 56.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 06:32:51,421 INFO L168 Benchmark]: Boogie Preprocessor took 23.24 ms. Allocated memory is still 73.4 MB. Free memory was 56.4 MB in the beginning and 55.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 06:32:51,421 INFO L168 Benchmark]: RCFGBuilder took 227.80 ms. Allocated memory is still 73.4 MB. Free memory was 55.2 MB in the beginning and 42.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-05 06:32:51,421 INFO L168 Benchmark]: TraceAbstraction took 10731.02 ms. Allocated memory was 73.4 MB in the beginning and 102.8 MB in the end (delta: 29.4 MB). Free memory was 41.7 MB in the beginning and 58.1 MB in the end (delta: -16.4 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-07-05 06:32:51,422 INFO L168 Benchmark]: Witness Printer took 36.56 ms. Allocated memory is still 102.8 MB. Free memory was 58.1 MB in the beginning and 55.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-05 06:32:51,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 73.4 MB. Free memory was 55.5 MB in the beginning and 55.5 MB in the end (delta: 60.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 177.01 ms. Allocated memory is still 73.4 MB. Free memory was 57.6 MB in the beginning and 57.8 MB in the end (delta: -197.9 kB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.12 ms. Allocated memory is still 73.4 MB. Free memory was 57.8 MB in the beginning and 56.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.24 ms. Allocated memory is still 73.4 MB. Free memory was 56.4 MB in the beginning and 55.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 227.80 ms. Allocated memory is still 73.4 MB. Free memory was 55.2 MB in the beginning and 42.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10731.02 ms. Allocated memory was 73.4 MB in the beginning and 102.8 MB in the end (delta: 29.4 MB). Free memory was 41.7 MB in the beginning and 58.1 MB in the end (delta: -16.4 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Witness Printer took 36.56 ms. Allocated memory is still 102.8 MB. Free memory was 58.1 MB in the beginning and 55.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 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: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: 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, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 9903.4ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 6.1ms, AutomataDifference: 8244.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 23.6ms, InitialAbstractionConstructionTime: 5.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 51 SDtfs, 21 SDslu, 80 SDs, 0 SdLazy, 87 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8084.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 236.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.6ms AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 16 HoareAnnotationTreeSize, 4 FomulaSimplifications, 128 FormulaSimplificationTreeSizeReduction, 8.6ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 11.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 31.7ms SsaConstructionTime, 91.3ms SatisfiabilityAnalysisTime, 568.0ms InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 SizeOfPredicates, 16 NumberOfNonLiveVariables, 258 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/13 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, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 784.8ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.9ms, AutomataDifference: 63.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 25.1ms, InitialAbstractionConstructionTime: 0.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 44 SDtfs, 11 SDslu, 34 SDs, 0 SdLazy, 18 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 37.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2.6ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 9 NumberOfFragments, 42 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 7.3ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 17.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 9.7ms SsaConstructionTime, 27.2ms SatisfiabilityAnalysisTime, 166.4ms InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 6 NumberOfNonLiveVariables, 148 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 35]: Loop Invariant Derived loop invariant: ((z * x + 1 == y + x && 1 == cond) || (counter <= 0 && z * x + 1 == y + x)) && (0 <= cond || (z == y && x == 1)) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (0 <= cond && z * x + 1 == y + x) && 1 == cond RESULT: Ultimate proved your program to be correct! [2021-07-05 06:32:51,436 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...