/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/memsafety-ext3/getNumbers4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 19:43:19,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 19:43:19,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 19:43:19,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 19:43:19,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 19:43:19,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 19:43:19,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 19:43:19,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 19:43:19,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 19:43:19,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 19:43:19,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 19:43:19,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 19:43:19,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 19:43:19,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 19:43:19,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 19:43:19,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 19:43:19,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 19:43:19,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 19:43:19,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 19:43:19,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 19:43:19,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 19:43:19,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 19:43:19,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 19:43:19,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 19:43:19,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 19:43:19,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 19:43:19,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 19:43:19,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 19:43:19,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 19:43:19,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 19:43:19,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 19:43:19,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 19:43:19,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 19:43:19,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 19:43:19,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 19:43:19,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 19:43:19,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-22 19:43:19,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 19:43:19,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 19:43:19,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 19:43:19,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 19:43:19,982 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 19:43:19,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 19:43:19,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 19:43:19,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 19:43:19,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 19:43:19,984 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 19:43:19,984 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 19:43:19,985 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-22 19:43:19,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 19:43:19,985 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 19:43:19,985 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 19:43:19,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 19:43:19,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 19:43:19,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 19:43:19,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:43:19,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 19:43:19,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 19:43:19,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 19:43:19,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 19:43:19,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 19:43:19,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 19:43:20,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 19:43:20,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 19:43:20,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 19:43:20,493 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 19:43:20,494 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 19:43:20,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/getNumbers4-1.c [2020-12-22 19:43:20,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9171b4c/7ae3f35353394e15b93800ff174333a7/FLAGe815543d8 [2020-12-22 19:43:21,260 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 19:43:21,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers4-1.c [2020-12-22 19:43:21,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9171b4c/7ae3f35353394e15b93800ff174333a7/FLAGe815543d8 [2020-12-22 19:43:21,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9171b4c/7ae3f35353394e15b93800ff174333a7 [2020-12-22 19:43:21,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 19:43:21,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 19:43:21,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 19:43:21,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 19:43:21,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 19:43:21,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:43:21" (1/1) ... [2020-12-22 19:43:21,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2361e32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:21, skipping insertion in model container [2020-12-22 19:43:21,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:43:21" (1/1) ... [2020-12-22 19:43:21,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 19:43:21,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 19:43:21,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:43:21,963 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 19:43:21,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:43:22,012 INFO L208 MainTranslator]: Completed translation [2020-12-22 19:43:22,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22 WrapperNode [2020-12-22 19:43:22,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 19:43:22,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 19:43:22,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 19:43:22,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 19:43:22,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22" (1/1) ... [2020-12-22 19:43:22,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22" (1/1) ... [2020-12-22 19:43:22,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 19:43:22,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 19:43:22,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 19:43:22,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 19:43:22,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22" (1/1) ... [2020-12-22 19:43:22,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22" (1/1) ... [2020-12-22 19:43:22,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22" (1/1) ... [2020-12-22 19:43:22,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22" (1/1) ... [2020-12-22 19:43:22,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22" (1/1) ... [2020-12-22 19:43:22,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22" (1/1) ... [2020-12-22 19:43:22,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22" (1/1) ... [2020-12-22 19:43:22,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 19:43:22,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 19:43:22,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 19:43:22,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 19:43:22,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:43:22,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 19:43:22,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 19:43:22,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 19:43:22,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 19:43:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 19:43:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 19:43:23,013 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 19:43:23,014 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2020-12-22 19:43:23,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:43:23 BoogieIcfgContainer [2020-12-22 19:43:23,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 19:43:23,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 19:43:23,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 19:43:23,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 19:43:23,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:43:21" (1/3) ... [2020-12-22 19:43:23,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441f06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:43:23, skipping insertion in model container [2020-12-22 19:43:23,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:43:22" (2/3) ... [2020-12-22 19:43:23,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441f06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:43:23, skipping insertion in model container [2020-12-22 19:43:23,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:43:23" (3/3) ... [2020-12-22 19:43:23,031 INFO L111 eAbstractionObserver]: Analyzing ICFG getNumbers4-1.c [2020-12-22 19:43:23,038 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 19:43:23,044 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-12-22 19:43:23,066 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-12-22 19:43:23,103 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 19:43:23,104 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 19:43:23,104 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 19:43:23,104 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 19:43:23,104 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 19:43:23,104 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 19:43:23,104 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 19:43:23,105 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 19:43:23,126 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-12-22 19:43:23,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-22 19:43:23,135 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:23,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-22 19:43:23,137 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:23,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:23,144 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-12-22 19:43:23,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:23,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082940474] [2020-12-22 19:43:23,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:23,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:23,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082940474] [2020-12-22 19:43:23,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:43:23,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 19:43:23,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527001382] [2020-12-22 19:43:23,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:43:23,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:23,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:43:23,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:43:23,404 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2020-12-22 19:43:23,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:23,485 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2020-12-22 19:43:23,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:43:23,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-22 19:43:23,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:23,497 INFO L225 Difference]: With dead ends: 52 [2020-12-22 19:43:23,498 INFO L226 Difference]: Without dead ends: 50 [2020-12-22 19:43:23,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:43:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-22 19:43:23,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-12-22 19:43:23,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-22 19:43:23,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-12-22 19:43:23,539 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 4 [2020-12-22 19:43:23,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:23,540 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-12-22 19:43:23,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:43:23,540 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-12-22 19:43:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-22 19:43:23,540 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:23,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-22 19:43:23,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 19:43:23,541 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:23,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:23,542 INFO L82 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2020-12-22 19:43:23,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:23,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670172842] [2020-12-22 19:43:23,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:23,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:23,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670172842] [2020-12-22 19:43:23,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:43:23,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:43:23,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142356464] [2020-12-22 19:43:23,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:43:23,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:23,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:43:23,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:43:23,648 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 4 states. [2020-12-22 19:43:23,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:23,750 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2020-12-22 19:43:23,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:43:23,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-22 19:43:23,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:23,752 INFO L225 Difference]: With dead ends: 53 [2020-12-22 19:43:23,753 INFO L226 Difference]: Without dead ends: 53 [2020-12-22 19:43:23,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 19:43:23,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-22 19:43:23,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2020-12-22 19:43:23,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-22 19:43:23,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-12-22 19:43:23,762 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 4 [2020-12-22 19:43:23,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:23,762 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-12-22 19:43:23,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:43:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-12-22 19:43:23,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 19:43:23,763 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:23,763 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-22 19:43:23,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 19:43:23,764 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:23,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:23,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1809646286, now seen corresponding path program 1 times [2020-12-22 19:43:23,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:23,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972982668] [2020-12-22 19:43:23,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:23,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:23,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972982668] [2020-12-22 19:43:23,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482093932] [2020-12-22 19:43:23,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:24,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 19:43:24,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:24,108 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_23|], 10=[|v_#valid_27|]} [2020-12-22 19:43:24,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:24,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:24,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:24,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:24,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:24,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:24,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:24,249 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-22 19:43:24,250 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-22 19:43:24,256 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:24,399 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-12-22 19:43:24,400 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.0 percent of original size [2020-12-22 19:43:24,442 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:43:24,443 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 305 treesize of output 293 [2020-12-22 19:43:24,453 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:24,464 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:24,468 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 19:43:24,476 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:24,615 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2020-12-22 19:43:24,616 INFO L625 ElimStorePlain]: treesize reduction 26, result has 68.3 percent of original size [2020-12-22 19:43:24,650 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:43:24,650 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:44 [2020-12-22 19:43:24,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:24,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:24,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-12-22 19:43:24,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080647632] [2020-12-22 19:43:24,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:43:24,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:24,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:43:24,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:43:24,992 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 8 states. [2020-12-22 19:43:25,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:25,194 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2020-12-22 19:43:25,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:43:25,195 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2020-12-22 19:43:25,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:25,200 INFO L225 Difference]: With dead ends: 56 [2020-12-22 19:43:25,201 INFO L226 Difference]: Without dead ends: 56 [2020-12-22 19:43:25,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:43:25,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-22 19:43:25,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2020-12-22 19:43:25,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-12-22 19:43:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2020-12-22 19:43:25,220 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 7 [2020-12-22 19:43:25,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:25,220 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2020-12-22 19:43:25,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:43:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2020-12-22 19:43:25,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 19:43:25,221 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:25,221 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2020-12-22 19:43:25,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-22 19:43:25,436 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:25,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:25,437 INFO L82 PathProgramCache]: Analyzing trace with hash 742961990, now seen corresponding path program 2 times [2020-12-22 19:43:25,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:25,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027944268] [2020-12-22 19:43:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:25,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027944268] [2020-12-22 19:43:25,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975453838] [2020-12-22 19:43:25,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:25,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:43:25,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:25,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-22 19:43:25,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:25,833 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_24|], 10=[|v_#valid_28|]} [2020-12-22 19:43:25,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:25,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:25,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:25,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:25,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:25,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:25,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:25,995 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-22 19:43:25,995 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-22 19:43:25,998 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:26,094 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.0 percent of original size [2020-12-22 19:43:26,134 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:43:26,135 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 207 treesize of output 197 [2020-12-22 19:43:26,140 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:26,143 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:26,145 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 19:43:26,148 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:26,154 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:26,291 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-12-22 19:43:26,292 INFO L625 ElimStorePlain]: treesize reduction 73, result has 43.4 percent of original size [2020-12-22 19:43:26,306 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:43:26,307 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:44 [2020-12-22 19:43:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:26,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:26,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2020-12-22 19:43:26,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335905582] [2020-12-22 19:43:26,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:43:26,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:26,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:43:26,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:43:26,649 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 10 states. [2020-12-22 19:43:26,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:26,933 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2020-12-22 19:43:26,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:43:26,934 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-12-22 19:43:26,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:26,935 INFO L225 Difference]: With dead ends: 59 [2020-12-22 19:43:26,935 INFO L226 Difference]: Without dead ends: 59 [2020-12-22 19:43:26,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:43:26,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-12-22 19:43:26,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2020-12-22 19:43:26,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-12-22 19:43:26,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2020-12-22 19:43:26,941 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 10 [2020-12-22 19:43:26,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:26,941 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2020-12-22 19:43:26,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:43:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2020-12-22 19:43:26,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 19:43:26,942 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:26,942 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2020-12-22 19:43:27,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:27,156 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:27,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:27,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1614122958, now seen corresponding path program 3 times [2020-12-22 19:43:27,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:27,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746170877] [2020-12-22 19:43:27,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:27,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746170877] [2020-12-22 19:43:27,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588096361] [2020-12-22 19:43:27,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:27,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 19:43:27,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:27,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 19:43:27,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:27,488 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_25|], 10=[|v_#valid_29|]} [2020-12-22 19:43:27,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:27,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:27,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:27,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:27,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:27,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:27,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:27,584 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-22 19:43:27,584 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-22 19:43:27,587 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:27,728 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-12-22 19:43:27,729 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.0 percent of original size [2020-12-22 19:43:27,774 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:43:27,776 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 112 [2020-12-22 19:43:27,780 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:27,783 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 19:43:27,787 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:27,795 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:27,968 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 37 [2020-12-22 19:43:27,969 INFO L625 ElimStorePlain]: treesize reduction 159, result has 26.0 percent of original size [2020-12-22 19:43:28,001 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:43:28,001 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:44 [2020-12-22 19:43:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 19:43:28,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:43:28,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2020-12-22 19:43:28,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224831660] [2020-12-22 19:43:28,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:43:28,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:28,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:43:28,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:43:28,379 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 6 states. [2020-12-22 19:43:28,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:28,511 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2020-12-22 19:43:28,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:43:28,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-22 19:43:28,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:28,513 INFO L225 Difference]: With dead ends: 57 [2020-12-22 19:43:28,513 INFO L226 Difference]: Without dead ends: 57 [2020-12-22 19:43:28,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:43:28,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-22 19:43:28,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2020-12-22 19:43:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-22 19:43:28,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-12-22 19:43:28,518 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 13 [2020-12-22 19:43:28,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:28,519 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-12-22 19:43:28,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:43:28,519 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-12-22 19:43:28,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 19:43:28,520 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:28,520 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:28,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:28,725 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:28,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:28,726 INFO L82 PathProgramCache]: Analyzing trace with hash -118451422, now seen corresponding path program 1 times [2020-12-22 19:43:28,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:28,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106094050] [2020-12-22 19:43:28,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:28,823 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:28,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106094050] [2020-12-22 19:43:28,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652077583] [2020-12-22 19:43:28,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:28,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 19:43:28,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:28,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:28,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-22 19:43:28,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549024154] [2020-12-22 19:43:28,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 19:43:28,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:28,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 19:43:28,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:43:28,978 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 7 states. [2020-12-22 19:43:29,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:29,028 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2020-12-22 19:43:29,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:43:29,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-12-22 19:43:29,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:29,031 INFO L225 Difference]: With dead ends: 61 [2020-12-22 19:43:29,031 INFO L226 Difference]: Without dead ends: 61 [2020-12-22 19:43:29,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:43:29,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-12-22 19:43:29,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-12-22 19:43:29,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-22 19:43:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-12-22 19:43:29,038 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 16 [2020-12-22 19:43:29,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:29,039 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-12-22 19:43:29,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 19:43:29,039 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-12-22 19:43:29,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 19:43:29,040 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:29,040 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:29,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:29,255 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:29,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:29,256 INFO L82 PathProgramCache]: Analyzing trace with hash -2129139286, now seen corresponding path program 2 times [2020-12-22 19:43:29,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:29,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687366956] [2020-12-22 19:43:29,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:29,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687366956] [2020-12-22 19:43:29,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989935286] [2020-12-22 19:43:29,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:29,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:43:29,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:29,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 19:43:29,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:29,603 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-12-22 19:43:29,604 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-22 19:43:29,605 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-22 19:43:29,608 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:29,681 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-22 19:43:29,690 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:43:29,691 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-22 19:43:29,833 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-22 19:43:29,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:43:29,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2020-12-22 19:43:29,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115632715] [2020-12-22 19:43:29,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:43:29,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:29,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:43:29,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:43:29,836 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 5 states. [2020-12-22 19:43:30,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:30,004 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2020-12-22 19:43:30,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:43:30,005 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-12-22 19:43:30,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:30,006 INFO L225 Difference]: With dead ends: 67 [2020-12-22 19:43:30,006 INFO L226 Difference]: Without dead ends: 67 [2020-12-22 19:43:30,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:43:30,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-12-22 19:43:30,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2020-12-22 19:43:30,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-12-22 19:43:30,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2020-12-22 19:43:30,012 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 19 [2020-12-22 19:43:30,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:30,012 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2020-12-22 19:43:30,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:43:30,013 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2020-12-22 19:43:30,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 19:43:30,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:30,014 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:30,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-22 19:43:30,228 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:30,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:30,228 INFO L82 PathProgramCache]: Analyzing trace with hash -2129139287, now seen corresponding path program 1 times [2020-12-22 19:43:30,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:30,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503034670] [2020-12-22 19:43:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:30,339 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 19:43:30,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503034670] [2020-12-22 19:43:30,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:43:30,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:43:30,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596719213] [2020-12-22 19:43:30,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:43:30,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:30,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:43:30,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:43:30,345 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 5 states. [2020-12-22 19:43:30,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:30,424 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2020-12-22 19:43:30,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:43:30,424 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-12-22 19:43:30,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:30,427 INFO L225 Difference]: With dead ends: 60 [2020-12-22 19:43:30,427 INFO L226 Difference]: Without dead ends: 60 [2020-12-22 19:43:30,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:43:30,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-22 19:43:30,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-12-22 19:43:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-22 19:43:30,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2020-12-22 19:43:30,440 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 19 [2020-12-22 19:43:30,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:30,441 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2020-12-22 19:43:30,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:43:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2020-12-22 19:43:30,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 19:43:30,443 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:30,443 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:30,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 19:43:30,443 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:30,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:30,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1578808454, now seen corresponding path program 1 times [2020-12-22 19:43:30,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:30,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75182720] [2020-12-22 19:43:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:30,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75182720] [2020-12-22 19:43:30,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687868869] [2020-12-22 19:43:30,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:30,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 19:43:30,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:30,701 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:30,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:30,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-22 19:43:30,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407192015] [2020-12-22 19:43:30,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:43:30,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:30,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:43:30,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:43:30,704 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 8 states. [2020-12-22 19:43:30,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:30,758 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2020-12-22 19:43:30,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:43:30,758 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-12-22 19:43:30,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:30,759 INFO L225 Difference]: With dead ends: 65 [2020-12-22 19:43:30,759 INFO L226 Difference]: Without dead ends: 65 [2020-12-22 19:43:30,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:43:30,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-12-22 19:43:30,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2020-12-22 19:43:30,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-12-22 19:43:30,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2020-12-22 19:43:30,764 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 20 [2020-12-22 19:43:30,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:30,765 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2020-12-22 19:43:30,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:43:30,765 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2020-12-22 19:43:30,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 19:43:30,766 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:30,766 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:30,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:30,980 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:30,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:30,981 INFO L82 PathProgramCache]: Analyzing trace with hash -2115101182, now seen corresponding path program 2 times [2020-12-22 19:43:30,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:30,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983093579] [2020-12-22 19:43:30,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:31,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983093579] [2020-12-22 19:43:31,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409948632] [2020-12-22 19:43:31,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:31,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:43:31,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:31,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 19:43:31,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:31,418 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 28 [2020-12-22 19:43:31,420 INFO L348 Elim1Store]: treesize reduction 234, result has 18.2 percent of original size [2020-12-22 19:43:31,420 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 389 treesize of output 408 [2020-12-22 19:43:31,430 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:31,549 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-12-22 19:43:31,550 INFO L625 ElimStorePlain]: treesize reduction 24, result has 72.4 percent of original size [2020-12-22 19:43:31,554 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,558 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,559 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,562 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:31,563 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:31,585 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-22 19:43:31,585 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:42, output treesize:63 [2020-12-22 19:43:31,588 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,590 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,591 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,593 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:31,594 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:31,645 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,647 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,648 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,650 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:31,652 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:31,778 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,780 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,781 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,783 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:31,785 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:31,922 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,923 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,925 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:31,926 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:31,928 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:32,078 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,080 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,082 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,084 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:32,086 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:32,217 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,219 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,220 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,222 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:32,223 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:32,343 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,344 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,346 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,347 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:32,349 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:32,461 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,462 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,464 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,465 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:32,467 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:32,579 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,581 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,583 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,584 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:32,585 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:32,698 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,700 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,701 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,702 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:32,704 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:32,818 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,819 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,820 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,822 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:32,823 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:32,933 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,935 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,936 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:32,937 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:32,939 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:33,051 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,053 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,054 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,056 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:33,057 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:33,181 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,187 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,188 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,190 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:33,191 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:33,310 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,311 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,313 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,314 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:33,316 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:33,434 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,435 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,436 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,438 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:33,439 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:33,557 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,558 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,560 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,561 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:33,563 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:33,671 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,672 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,674 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,675 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:33,677 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:33,789 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,791 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,792 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,793 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:33,794 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:33,898 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,899 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,901 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:33,902 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:33,903 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:34,007 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:34,009 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:34,010 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:34,011 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:34,013 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:34,133 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:34,135 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:34,136 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:34,138 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:34,139 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-22 19:43:34,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:43:34,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [8] total 9 [2020-12-22 19:43:34,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610756917] [2020-12-22 19:43:34,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:43:34,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:34,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:43:34,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:43:34,238 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 3 states. [2020-12-22 19:43:34,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:34,287 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2020-12-22 19:43:34,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:43:34,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-12-22 19:43:34,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:34,288 INFO L225 Difference]: With dead ends: 62 [2020-12-22 19:43:34,288 INFO L226 Difference]: Without dead ends: 62 [2020-12-22 19:43:34,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 21 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:43:34,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-12-22 19:43:34,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-12-22 19:43:34,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-12-22 19:43:34,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2020-12-22 19:43:34,293 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 23 [2020-12-22 19:43:34,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:34,293 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2020-12-22 19:43:34,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:43:34,294 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2020-12-22 19:43:34,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 19:43:34,294 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:34,294 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:34,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 19:43:34,509 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:34,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:34,510 INFO L82 PathProgramCache]: Analyzing trace with hash -2115101181, now seen corresponding path program 1 times [2020-12-22 19:43:34,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:34,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385362557] [2020-12-22 19:43:34,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:34,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385362557] [2020-12-22 19:43:34,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759157155] [2020-12-22 19:43:34,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:34,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 19:43:34,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:34,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:34,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-12-22 19:43:34,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181156980] [2020-12-22 19:43:34,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 19:43:34,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:34,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 19:43:34,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:43:34,783 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 9 states. [2020-12-22 19:43:34,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:34,835 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2020-12-22 19:43:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:43:34,836 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-12-22 19:43:34,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:34,838 INFO L225 Difference]: With dead ends: 67 [2020-12-22 19:43:34,838 INFO L226 Difference]: Without dead ends: 67 [2020-12-22 19:43:34,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:43:34,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-12-22 19:43:34,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2020-12-22 19:43:34,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-12-22 19:43:34,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-12-22 19:43:34,856 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 23 [2020-12-22 19:43:34,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:34,857 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-12-22 19:43:34,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 19:43:34,857 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-12-22 19:43:34,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 19:43:34,863 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:34,863 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:35,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 19:43:35,064 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:35,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:35,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1533419909, now seen corresponding path program 2 times [2020-12-22 19:43:35,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:35,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460813161] [2020-12-22 19:43:35,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:35,185 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:35,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460813161] [2020-12-22 19:43:35,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253358606] [2020-12-22 19:43:35,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:35,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:43:35,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:35,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 19:43:35,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:35,276 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_27|], 5=[|v_#valid_31|]} [2020-12-22 19:43:35,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:35,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:35,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:35,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:35,399 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2020-12-22 19:43:35,399 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 46 [2020-12-22 19:43:35,401 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:35,472 INFO L625 ElimStorePlain]: treesize reduction 10, result has 85.5 percent of original size [2020-12-22 19:43:35,491 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 101 [2020-12-22 19:43:35,494 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:35,603 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-12-22 19:43:35,604 INFO L625 ElimStorePlain]: treesize reduction 22, result has 69.9 percent of original size [2020-12-22 19:43:35,614 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:43:35,614 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:42, output treesize:36 [2020-12-22 19:43:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-12-22 19:43:35,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:43:35,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 11 [2020-12-22 19:43:35,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132117192] [2020-12-22 19:43:35,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:43:35,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:35,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:43:35,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:43:35,911 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 4 states. [2020-12-22 19:43:36,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:36,006 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2020-12-22 19:43:36,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:43:36,007 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-12-22 19:43:36,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:36,008 INFO L225 Difference]: With dead ends: 68 [2020-12-22 19:43:36,008 INFO L226 Difference]: Without dead ends: 68 [2020-12-22 19:43:36,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:43:36,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-22 19:43:36,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-12-22 19:43:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-22 19:43:36,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-12-22 19:43:36,012 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 26 [2020-12-22 19:43:36,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:36,012 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-12-22 19:43:36,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:43:36,012 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-12-22 19:43:36,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 19:43:36,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:36,013 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:36,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:36,227 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:36,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:36,228 INFO L82 PathProgramCache]: Analyzing trace with hash -281744994, now seen corresponding path program 1 times [2020-12-22 19:43:36,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:36,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240195262] [2020-12-22 19:43:36,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:36,336 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 19:43:36,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240195262] [2020-12-22 19:43:36,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959810210] [2020-12-22 19:43:36,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:36,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 19:43:36,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:36,527 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 19:43:36,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:36,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-12-22 19:43:36,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759585173] [2020-12-22 19:43:36,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:43:36,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:36,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:43:36,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:43:36,530 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 10 states. [2020-12-22 19:43:36,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:36,602 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2020-12-22 19:43:36,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 19:43:36,603 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-12-22 19:43:36,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:36,604 INFO L225 Difference]: With dead ends: 71 [2020-12-22 19:43:36,604 INFO L226 Difference]: Without dead ends: 71 [2020-12-22 19:43:36,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:43:36,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-12-22 19:43:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2020-12-22 19:43:36,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-22 19:43:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2020-12-22 19:43:36,608 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 30 [2020-12-22 19:43:36,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:36,608 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2020-12-22 19:43:36,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:43:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2020-12-22 19:43:36,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:43:36,610 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:36,610 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:36,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:36,824 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:36,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:36,825 INFO L82 PathProgramCache]: Analyzing trace with hash 425603622, now seen corresponding path program 2 times [2020-12-22 19:43:36,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:36,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974742437] [2020-12-22 19:43:36,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:37,016 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 19:43:37,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974742437] [2020-12-22 19:43:37,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283589891] [2020-12-22 19:43:37,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:37,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:43:37,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:37,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 19:43:37,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:37,209 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 19:43:37,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:37,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2020-12-22 19:43:37,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384774076] [2020-12-22 19:43:37,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 19:43:37,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:37,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 19:43:37,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:43:37,212 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 11 states. [2020-12-22 19:43:37,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:37,283 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2020-12-22 19:43:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 19:43:37,284 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2020-12-22 19:43:37,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:37,284 INFO L225 Difference]: With dead ends: 74 [2020-12-22 19:43:37,284 INFO L226 Difference]: Without dead ends: 74 [2020-12-22 19:43:37,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:43:37,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-22 19:43:37,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2020-12-22 19:43:37,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-22 19:43:37,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-12-22 19:43:37,287 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 33 [2020-12-22 19:43:37,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:37,288 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-12-22 19:43:37,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 19:43:37,288 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-12-22 19:43:37,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 19:43:37,289 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:37,289 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:37,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-22 19:43:37,503 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:37,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:37,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1938668702, now seen corresponding path program 3 times [2020-12-22 19:43:37,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:37,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760359488] [2020-12-22 19:43:37,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 19:43:37,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760359488] [2020-12-22 19:43:37,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482718033] [2020-12-22 19:43:37,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:37,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 19:43:37,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:37,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-22 19:43:37,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:38,057 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-12-22 19:43:38,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:38,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 18 [2020-12-22 19:43:38,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272099479] [2020-12-22 19:43:38,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-22 19:43:38,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:38,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-22 19:43:38,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2020-12-22 19:43:38,060 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 18 states. [2020-12-22 19:43:39,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:39,505 INFO L93 Difference]: Finished difference Result 139 states and 147 transitions. [2020-12-22 19:43:39,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 19:43:39,506 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 36 [2020-12-22 19:43:39,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:39,508 INFO L225 Difference]: With dead ends: 139 [2020-12-22 19:43:39,508 INFO L226 Difference]: Without dead ends: 139 [2020-12-22 19:43:39,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2020-12-22 19:43:39,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-12-22 19:43:39,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 79. [2020-12-22 19:43:39,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-12-22 19:43:39,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2020-12-22 19:43:39,513 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 36 [2020-12-22 19:43:39,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:39,516 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2020-12-22 19:43:39,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-22 19:43:39,516 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2020-12-22 19:43:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 19:43:39,517 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:39,517 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:39,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-22 19:43:39,733 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:39,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:39,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1210017151, now seen corresponding path program 1 times [2020-12-22 19:43:39,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:39,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338536320] [2020-12-22 19:43:39,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 19:43:39,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338536320] [2020-12-22 19:43:39,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102015049] [2020-12-22 19:43:39,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:40,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 19:43:40,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 19:43:40,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:40,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2020-12-22 19:43:40,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473509032] [2020-12-22 19:43:40,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 19:43:40,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:40,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 19:43:40,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2020-12-22 19:43:40,127 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 13 states. [2020-12-22 19:43:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:40,210 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2020-12-22 19:43:40,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 19:43:40,211 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-12-22 19:43:40,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:40,212 INFO L225 Difference]: With dead ends: 82 [2020-12-22 19:43:40,212 INFO L226 Difference]: Without dead ends: 82 [2020-12-22 19:43:40,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2020-12-22 19:43:40,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-22 19:43:40,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-12-22 19:43:40,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-22 19:43:40,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 86 transitions. [2020-12-22 19:43:40,216 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 86 transitions. Word has length 40 [2020-12-22 19:43:40,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:40,216 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 86 transitions. [2020-12-22 19:43:40,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 19:43:40,216 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 86 transitions. [2020-12-22 19:43:40,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 19:43:40,217 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:40,217 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:40,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-22 19:43:40,432 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:40,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:40,433 INFO L82 PathProgramCache]: Analyzing trace with hash -20077561, now seen corresponding path program 2 times [2020-12-22 19:43:40,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:40,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874144018] [2020-12-22 19:43:40,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:40,574 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:43:40,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874144018] [2020-12-22 19:43:40,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096493259] [2020-12-22 19:43:40,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:40,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:43:40,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:40,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 19:43:40,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:40,667 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_28|], 10=[|v_#valid_32|]} [2020-12-22 19:43:40,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:40,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:40,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:40,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:40,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:40,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:40,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:43:40,757 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-22 19:43:40,757 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-22 19:43:40,759 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:40,876 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-12-22 19:43:40,877 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.4 percent of original size [2020-12-22 19:43:40,907 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:43:40,907 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 150 [2020-12-22 19:43:40,910 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:40,910 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:40,913 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:40,913 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:40,914 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:43:40,919 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:41,056 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-12-22 19:43:41,057 INFO L625 ElimStorePlain]: treesize reduction 66, result has 47.2 percent of original size [2020-12-22 19:43:41,066 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:43:41,066 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:62, output treesize:47 [2020-12-22 19:43:41,764 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2020-12-22 19:43:41,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:41,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 8 [2020-12-22 19:43:41,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030058205] [2020-12-22 19:43:41,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:43:41,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:41,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:43:41,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:43:41,766 INFO L87 Difference]: Start difference. First operand 82 states and 86 transitions. Second operand 10 states. [2020-12-22 19:43:42,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:42,287 INFO L93 Difference]: Finished difference Result 87 states and 91 transitions. [2020-12-22 19:43:42,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 19:43:42,289 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2020-12-22 19:43:42,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:42,289 INFO L225 Difference]: With dead ends: 87 [2020-12-22 19:43:42,289 INFO L226 Difference]: Without dead ends: 87 [2020-12-22 19:43:42,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-12-22 19:43:42,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-12-22 19:43:42,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2020-12-22 19:43:42,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-12-22 19:43:42,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2020-12-22 19:43:42,293 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 43 [2020-12-22 19:43:42,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:42,293 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2020-12-22 19:43:42,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:43:42,293 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2020-12-22 19:43:42,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 19:43:42,294 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:42,294 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:42,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:42,495 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:42,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:42,496 INFO L82 PathProgramCache]: Analyzing trace with hash -676132566, now seen corresponding path program 4 times [2020-12-22 19:43:42,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:42,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807370405] [2020-12-22 19:43:42,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 100 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:43,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807370405] [2020-12-22 19:43:43,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656494707] [2020-12-22 19:43:43,031 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:43,139 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 19:43:43,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:43,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-22 19:43:43,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 100 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:43,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:43,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 20 [2020-12-22 19:43:43,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442499596] [2020-12-22 19:43:43,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-12-22 19:43:43,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:43,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-12-22 19:43:43,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2020-12-22 19:43:43,400 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 21 states. [2020-12-22 19:43:44,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:44,402 INFO L93 Difference]: Finished difference Result 89 states and 93 transitions. [2020-12-22 19:43:44,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 19:43:44,403 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 47 [2020-12-22 19:43:44,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:44,404 INFO L225 Difference]: With dead ends: 89 [2020-12-22 19:43:44,405 INFO L226 Difference]: Without dead ends: 89 [2020-12-22 19:43:44,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=312, Invalid=878, Unknown=0, NotChecked=0, Total=1190 [2020-12-22 19:43:44,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-22 19:43:44,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2020-12-22 19:43:44,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-12-22 19:43:44,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2020-12-22 19:43:44,409 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 47 [2020-12-22 19:43:44,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:44,409 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2020-12-22 19:43:44,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-12-22 19:43:44,410 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2020-12-22 19:43:44,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 19:43:44,410 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:44,410 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:44,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-22 19:43:44,624 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:44,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:44,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1578211554, now seen corresponding path program 5 times [2020-12-22 19:43:44,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:44,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188756698] [2020-12-22 19:43:44,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 100 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:45,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188756698] [2020-12-22 19:43:45,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136948821] [2020-12-22 19:43:45,158 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:45,373 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2020-12-22 19:43:45,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:45,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-22 19:43:45,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 15 proven. 94 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-12-22 19:43:45,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:45,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11] total 24 [2020-12-22 19:43:45,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850329283] [2020-12-22 19:43:45,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-12-22 19:43:45,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:45,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-12-22 19:43:45,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2020-12-22 19:43:45,836 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 26 states. [2020-12-22 19:43:47,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:47,534 INFO L93 Difference]: Finished difference Result 94 states and 98 transitions. [2020-12-22 19:43:47,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-22 19:43:47,535 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 52 [2020-12-22 19:43:47,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:47,536 INFO L225 Difference]: With dead ends: 94 [2020-12-22 19:43:47,536 INFO L226 Difference]: Without dead ends: 94 [2020-12-22 19:43:47,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=395, Invalid=1245, Unknown=0, NotChecked=0, Total=1640 [2020-12-22 19:43:47,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-12-22 19:43:47,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2020-12-22 19:43:47,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-12-22 19:43:47,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2020-12-22 19:43:47,541 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 52 [2020-12-22 19:43:47,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:47,554 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2020-12-22 19:43:47,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-12-22 19:43:47,555 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2020-12-22 19:43:47,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 19:43:47,560 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:47,560 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:47,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:47,774 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:47,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:47,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1470341546, now seen corresponding path program 6 times [2020-12-22 19:43:47,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:47,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326635297] [2020-12-22 19:43:47,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:48,297 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 100 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:43:48,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326635297] [2020-12-22 19:43:48,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206397494] [2020-12-22 19:43:48,298 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:48,401 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-12-22 19:43:48,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:48,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-22 19:43:48,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:48,570 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-12-22 19:43:48,571 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-22 19:43:48,571 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-22 19:43:48,573 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:48,654 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-22 19:43:48,664 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:43:48,665 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-22 19:43:49,124 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-12-22 19:43:49,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:43:49,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 24 [2020-12-22 19:43:49,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562676956] [2020-12-22 19:43:49,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:43:49,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:49,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:43:49,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2020-12-22 19:43:49,126 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand 8 states. [2020-12-22 19:43:49,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:49,422 INFO L93 Difference]: Finished difference Result 90 states and 94 transitions. [2020-12-22 19:43:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:43:49,423 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-12-22 19:43:49,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:49,424 INFO L225 Difference]: With dead ends: 90 [2020-12-22 19:43:49,424 INFO L226 Difference]: Without dead ends: 90 [2020-12-22 19:43:49,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=142, Invalid=788, Unknown=0, NotChecked=0, Total=930 [2020-12-22 19:43:49,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-12-22 19:43:49,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2020-12-22 19:43:49,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-22 19:43:49,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 93 transitions. [2020-12-22 19:43:49,428 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 93 transitions. Word has length 57 [2020-12-22 19:43:49,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:49,428 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 93 transitions. [2020-12-22 19:43:49,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:43:49,429 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 93 transitions. [2020-12-22 19:43:49,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 19:43:49,429 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:49,429 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:49,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:49,639 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:49,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:49,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1427960200, now seen corresponding path program 1 times [2020-12-22 19:43:49,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:49,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177958453] [2020-12-22 19:43:49,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-12-22 19:43:49,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177958453] [2020-12-22 19:43:49,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:43:49,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:43:49,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265711297] [2020-12-22 19:43:49,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:43:49,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:49,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:43:49,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:43:49,699 INFO L87 Difference]: Start difference. First operand 89 states and 93 transitions. Second operand 5 states. [2020-12-22 19:43:49,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:49,785 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2020-12-22 19:43:49,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:43:49,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-12-22 19:43:49,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:49,786 INFO L225 Difference]: With dead ends: 88 [2020-12-22 19:43:49,787 INFO L226 Difference]: Without dead ends: 88 [2020-12-22 19:43:49,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:43:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-12-22 19:43:49,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-12-22 19:43:49,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-22 19:43:49,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2020-12-22 19:43:49,790 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 60 [2020-12-22 19:43:49,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:49,790 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2020-12-22 19:43:49,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:43:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2020-12-22 19:43:49,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 19:43:49,791 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:49,791 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:49,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 19:43:49,791 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:49,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:49,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1427960199, now seen corresponding path program 1 times [2020-12-22 19:43:49,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:49,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598842757] [2020-12-22 19:43:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:49,937 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-12-22 19:43:49,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598842757] [2020-12-22 19:43:49,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939874284] [2020-12-22 19:43:49,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:50,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 19:43:50,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:43:50,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:50,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2020-12-22 19:43:50,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798480330] [2020-12-22 19:43:50,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 19:43:50,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:50,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 19:43:50,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-12-22 19:43:50,250 INFO L87 Difference]: Start difference. First operand 88 states and 92 transitions. Second operand 13 states. [2020-12-22 19:43:50,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:50,637 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2020-12-22 19:43:50,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 19:43:50,638 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-12-22 19:43:50,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:50,639 INFO L225 Difference]: With dead ends: 104 [2020-12-22 19:43:50,639 INFO L226 Difference]: Without dead ends: 104 [2020-12-22 19:43:50,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2020-12-22 19:43:50,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-22 19:43:50,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 95. [2020-12-22 19:43:50,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-22 19:43:50,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 99 transitions. [2020-12-22 19:43:50,642 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 99 transitions. Word has length 60 [2020-12-22 19:43:50,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:50,643 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 99 transitions. [2020-12-22 19:43:50,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 19:43:50,643 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 99 transitions. [2020-12-22 19:43:50,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 19:43:50,643 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:50,644 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:50,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-22 19:43:50,858 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:50,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:50,858 INFO L82 PathProgramCache]: Analyzing trace with hash -751524970, now seen corresponding path program 1 times [2020-12-22 19:43:50,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:50,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206154995] [2020-12-22 19:43:50,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:43:50,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206154995] [2020-12-22 19:43:50,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935499650] [2020-12-22 19:43:50,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:51,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 19:43:51,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:51,197 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:43:51,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:43:51,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-12-22 19:43:51,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743725686] [2020-12-22 19:43:51,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 19:43:51,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:51,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 19:43:51,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:43:51,199 INFO L87 Difference]: Start difference. First operand 95 states and 99 transitions. Second operand 9 states. [2020-12-22 19:43:51,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:51,278 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2020-12-22 19:43:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:43:51,279 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-12-22 19:43:51,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:51,280 INFO L225 Difference]: With dead ends: 104 [2020-12-22 19:43:51,280 INFO L226 Difference]: Without dead ends: 104 [2020-12-22 19:43:51,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:43:51,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-22 19:43:51,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2020-12-22 19:43:51,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-12-22 19:43:51,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 104 transitions. [2020-12-22 19:43:51,284 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 104 transitions. Word has length 66 [2020-12-22 19:43:51,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:51,284 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 104 transitions. [2020-12-22 19:43:51,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 19:43:51,284 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 104 transitions. [2020-12-22 19:43:51,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 19:43:51,285 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:51,285 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:51,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-12-22 19:43:51,500 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:51,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:51,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1036355294, now seen corresponding path program 2 times [2020-12-22 19:43:51,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:51,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658839179] [2020-12-22 19:43:51,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:43:51,613 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:43:51,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658839179] [2020-12-22 19:43:51,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690412793] [2020-12-22 19:43:51,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:43:51,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:43:51,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:43:51,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 19:43:51,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:43:51,994 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 28 [2020-12-22 19:43:51,995 INFO L348 Elim1Store]: treesize reduction 234, result has 18.2 percent of original size [2020-12-22 19:43:51,996 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 171 treesize of output 198 [2020-12-22 19:43:52,007 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:43:52,144 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2020-12-22 19:43:52,145 INFO L625 ElimStorePlain]: treesize reduction 28, result has 69.2 percent of original size [2020-12-22 19:43:52,150 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,151 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,152 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,153 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:52,155 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:52,167 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-22 19:43:52,167 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:42, output treesize:63 [2020-12-22 19:43:52,170 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,170 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,171 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,172 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:52,173 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:52,217 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,219 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,220 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,221 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:52,222 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:52,335 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,336 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,337 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,338 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:52,340 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:52,456 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,457 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,459 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,460 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:52,461 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:52,566 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,568 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,569 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,571 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:52,572 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:52,682 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,683 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,685 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,686 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:52,687 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:52,782 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,783 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,784 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,785 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:52,786 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:52,887 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,888 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,889 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:52,890 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:52,891 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:53,007 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,008 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,009 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,010 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:53,011 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:53,122 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,124 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,125 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,126 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:53,127 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:53,240 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,241 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,242 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,243 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:53,244 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:53,360 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,362 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,363 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,364 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:53,365 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:53,483 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,485 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,486 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,487 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:53,488 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:53,605 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,606 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,607 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,608 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:53,609 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:53,710 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,712 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,713 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,713 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:53,714 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:53,823 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,824 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,825 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,826 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:53,827 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:53,941 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,943 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,944 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:53,945 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:53,947 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:54,070 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,071 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,072 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,073 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:54,075 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:54,185 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,186 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,187 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,189 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:54,190 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:54,285 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,286 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,287 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,288 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:54,289 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:54,383 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,384 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,387 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,388 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:54,389 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:54,494 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,496 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,497 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,498 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:54,499 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:54,593 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,594 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,594 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,595 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:54,596 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:54,694 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,695 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,697 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,698 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:54,699 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:54,823 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,824 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,826 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,827 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:54,828 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:54,948 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,950 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,951 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:54,952 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:54,953 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:55,066 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,070 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,071 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,073 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:55,074 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:55,183 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,185 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,186 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,187 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:55,188 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:55,316 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,317 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,318 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,319 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:55,321 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:55,442 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,443 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,444 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,445 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:55,446 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:55,558 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,559 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,560 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,561 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:55,562 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:55,665 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,666 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,667 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,668 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:55,669 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:55,773 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,774 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,775 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,775 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:55,776 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:55,894 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,895 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,896 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:55,897 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:55,899 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:56,006 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,007 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,008 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,009 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:56,011 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:56,123 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,124 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,125 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,126 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:56,127 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:56,221 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,221 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,222 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,223 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:56,225 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:56,319 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,319 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,320 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,321 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:56,321 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:56,429 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,430 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,431 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,432 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:56,433 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:56,538 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,539 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,541 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,542 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:56,543 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:56,635 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,636 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,637 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,638 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:56,639 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:56,757 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,758 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,759 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,760 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:56,761 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:56,849 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,853 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,854 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,855 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:56,856 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:56,944 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,945 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,946 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:56,947 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:56,948 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:57,048 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,049 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,050 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,051 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:57,051 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:57,138 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,139 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,140 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,140 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:57,141 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:57,228 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,229 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,230 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,231 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:57,232 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:57,319 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,321 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,322 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,323 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:57,324 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:57,433 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,434 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,435 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,436 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:57,437 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:57,550 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,551 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,553 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,553 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:57,554 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:57,636 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,638 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,639 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,640 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:57,641 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:57,732 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,734 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,735 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,735 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:57,736 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:57,829 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,830 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,831 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,831 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:57,832 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:57,941 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,943 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,944 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:57,945 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:57,946 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:58,070 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,072 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,073 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,074 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:58,075 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:58,187 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,188 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,189 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,190 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:58,191 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:58,304 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,306 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,307 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,308 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:58,308 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:58,394 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,395 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,395 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,396 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:58,397 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:58,496 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,497 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,497 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,498 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:58,499 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:58,585 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,586 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,587 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,587 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:58,588 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:58,677 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,678 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,679 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,680 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:58,680 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:58,761 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,761 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,762 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,763 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:58,763 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:58,868 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,869 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,870 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,870 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:58,872 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:58,958 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,959 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,959 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:58,960 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:58,961 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:59,043 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,043 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,044 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,045 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:59,045 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:59,141 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,141 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,142 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,143 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:59,143 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:59,235 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,236 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,236 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,237 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:59,238 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:59,318 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,319 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,320 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,321 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:59,321 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:59,409 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,410 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,411 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,412 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:59,413 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:59,495 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,496 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,497 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-22 19:43:59,497 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 6 disjuncts [2020-12-22 19:43:59,498 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 9 disjuncts [2020-12-22 19:43:59,650 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2020-12-22 19:43:59,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:43:59,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [9] total 10 [2020-12-22 19:43:59,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359845467] [2020-12-22 19:43:59,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:43:59,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:43:59,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:43:59,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:43:59,653 INFO L87 Difference]: Start difference. First operand 100 states and 104 transitions. Second operand 3 states. [2020-12-22 19:43:59,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:43:59,694 INFO L93 Difference]: Finished difference Result 99 states and 103 transitions. [2020-12-22 19:43:59,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:43:59,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-22 19:43:59,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:43:59,697 INFO L225 Difference]: With dead ends: 99 [2020-12-22 19:43:59,697 INFO L226 Difference]: Without dead ends: 99 [2020-12-22 19:43:59,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 69 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:43:59,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-12-22 19:43:59,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-12-22 19:43:59,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-22 19:43:59,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 103 transitions. [2020-12-22 19:43:59,701 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 103 transitions. Word has length 71 [2020-12-22 19:43:59,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:43:59,701 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 103 transitions. [2020-12-22 19:43:59,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:43:59,701 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 103 transitions. [2020-12-22 19:43:59,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 19:43:59,702 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:43:59,702 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:43:59,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-22 19:43:59,912 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:43:59,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:43:59,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1036355293, now seen corresponding path program 1 times [2020-12-22 19:43:59,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:43:59,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557555629] [2020-12-22 19:43:59,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:43:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:44:00,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557555629] [2020-12-22 19:44:00,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502703885] [2020-12-22 19:44:00,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:00,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 19:44:00,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:44:00,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:00,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-12-22 19:44:00,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111331470] [2020-12-22 19:44:00,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:44:00,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:00,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:44:00,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:44:00,293 INFO L87 Difference]: Start difference. First operand 99 states and 103 transitions. Second operand 10 states. [2020-12-22 19:44:00,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:00,395 INFO L93 Difference]: Finished difference Result 108 states and 112 transitions. [2020-12-22 19:44:00,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 19:44:00,396 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-12-22 19:44:00,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:00,397 INFO L225 Difference]: With dead ends: 108 [2020-12-22 19:44:00,397 INFO L226 Difference]: Without dead ends: 108 [2020-12-22 19:44:00,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:44:00,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-12-22 19:44:00,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2020-12-22 19:44:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-22 19:44:00,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2020-12-22 19:44:00,401 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 71 [2020-12-22 19:44:00,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:00,401 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2020-12-22 19:44:00,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:44:00,401 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2020-12-22 19:44:00,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 19:44:00,402 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:00,402 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:00,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-12-22 19:44:00,613 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:00,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:00,613 INFO L82 PathProgramCache]: Analyzing trace with hash -713540841, now seen corresponding path program 2 times [2020-12-22 19:44:00,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:00,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678913044] [2020-12-22 19:44:00,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:00,770 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:44:00,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678913044] [2020-12-22 19:44:00,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629072558] [2020-12-22 19:44:00,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:00,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:44:00,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:00,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 19:44:00,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:00,889 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_30|], 5=[|v_#valid_34|]} [2020-12-22 19:44:00,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:00,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:00,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:00,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:01,019 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 21 [2020-12-22 19:44:01,020 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2020-12-22 19:44:01,020 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 46 [2020-12-22 19:44:01,022 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:01,092 INFO L625 ElimStorePlain]: treesize reduction 10, result has 85.5 percent of original size [2020-12-22 19:44:01,109 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 227 [2020-12-22 19:44:01,113 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:01,216 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-12-22 19:44:01,216 INFO L625 ElimStorePlain]: treesize reduction 4, result has 92.7 percent of original size [2020-12-22 19:44:01,225 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:44:01,226 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:42, output treesize:36 [2020-12-22 19:44:01,869 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-12-22 19:44:01,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:44:01,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10] total 12 [2020-12-22 19:44:01,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937612372] [2020-12-22 19:44:01,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:44:01,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:01,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:44:01,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:44:01,874 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand 4 states. [2020-12-22 19:44:01,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:01,986 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2020-12-22 19:44:01,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:44:01,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-12-22 19:44:01,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:01,988 INFO L225 Difference]: With dead ends: 107 [2020-12-22 19:44:01,988 INFO L226 Difference]: Without dead ends: 107 [2020-12-22 19:44:01,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:44:01,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-22 19:44:01,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2020-12-22 19:44:01,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-22 19:44:01,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2020-12-22 19:44:01,991 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 76 [2020-12-22 19:44:01,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:01,991 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2020-12-22 19:44:01,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:44:01,991 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2020-12-22 19:44:01,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 19:44:01,997 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:01,997 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:02,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:02,206 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:02,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:02,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1708759558, now seen corresponding path program 1 times [2020-12-22 19:44:02,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:02,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891924590] [2020-12-22 19:44:02,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:02,343 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-22 19:44:02,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891924590] [2020-12-22 19:44:02,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171470744] [2020-12-22 19:44:02,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:02,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 19:44:02,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:02,670 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-22 19:44:02,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:02,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2020-12-22 19:44:02,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298378039] [2020-12-22 19:44:02,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 19:44:02,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:02,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 19:44:02,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:44:02,671 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand 11 states. [2020-12-22 19:44:02,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:02,802 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2020-12-22 19:44:02,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 19:44:02,803 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-12-22 19:44:02,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:02,804 INFO L225 Difference]: With dead ends: 114 [2020-12-22 19:44:02,804 INFO L226 Difference]: Without dead ends: 114 [2020-12-22 19:44:02,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:44:02,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-12-22 19:44:02,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2020-12-22 19:44:02,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-12-22 19:44:02,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2020-12-22 19:44:02,808 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 80 [2020-12-22 19:44:02,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:02,808 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2020-12-22 19:44:02,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 19:44:02,808 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2020-12-22 19:44:02,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-22 19:44:02,809 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:02,809 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:03,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-12-22 19:44:03,023 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:03,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:03,024 INFO L82 PathProgramCache]: Analyzing trace with hash 265393798, now seen corresponding path program 2 times [2020-12-22 19:44:03,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:03,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835085968] [2020-12-22 19:44:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:03,187 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-22 19:44:03,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835085968] [2020-12-22 19:44:03,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506330438] [2020-12-22 19:44:03,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:03,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:44:03,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:03,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 19:44:03,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-22 19:44:03,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:03,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2020-12-22 19:44:03,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676807981] [2020-12-22 19:44:03,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 19:44:03,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:03,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 19:44:03,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:44:03,544 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand 12 states. [2020-12-22 19:44:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:03,700 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2020-12-22 19:44:03,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 19:44:03,701 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 85 [2020-12-22 19:44:03,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:03,703 INFO L225 Difference]: With dead ends: 119 [2020-12-22 19:44:03,703 INFO L226 Difference]: Without dead ends: 119 [2020-12-22 19:44:03,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:44:03,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-22 19:44:03,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2020-12-22 19:44:03,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-22 19:44:03,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 119 transitions. [2020-12-22 19:44:03,709 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 119 transitions. Word has length 85 [2020-12-22 19:44:03,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:03,709 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 119 transitions. [2020-12-22 19:44:03,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 19:44:03,709 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 119 transitions. [2020-12-22 19:44:03,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 19:44:03,711 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:03,711 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:03,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:03,925 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:03,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:03,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1149951354, now seen corresponding path program 3 times [2020-12-22 19:44:03,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:03,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100688748] [2020-12-22 19:44:03,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-22 19:44:04,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100688748] [2020-12-22 19:44:04,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807431079] [2020-12-22 19:44:04,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:04,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 19:44:04,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:04,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-22 19:44:04,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2020-12-22 19:44:04,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:04,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 19 [2020-12-22 19:44:04,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145805080] [2020-12-22 19:44:04,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 19:44:04,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:04,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 19:44:04,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-12-22 19:44:04,603 INFO L87 Difference]: Start difference. First operand 115 states and 119 transitions. Second operand 19 states. [2020-12-22 19:44:05,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:05,936 INFO L93 Difference]: Finished difference Result 128 states and 132 transitions. [2020-12-22 19:44:05,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 19:44:05,937 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 90 [2020-12-22 19:44:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:05,938 INFO L225 Difference]: With dead ends: 128 [2020-12-22 19:44:05,938 INFO L226 Difference]: Without dead ends: 128 [2020-12-22 19:44:05,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=284, Invalid=772, Unknown=0, NotChecked=0, Total=1056 [2020-12-22 19:44:05,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-12-22 19:44:05,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2020-12-22 19:44:05,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-12-22 19:44:05,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 128 transitions. [2020-12-22 19:44:05,947 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 128 transitions. Word has length 90 [2020-12-22 19:44:05,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:05,947 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 128 transitions. [2020-12-22 19:44:05,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 19:44:05,947 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 128 transitions. [2020-12-22 19:44:05,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 19:44:05,948 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:05,948 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:06,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-22 19:44:06,164 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:06,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:06,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1301409354, now seen corresponding path program 1 times [2020-12-22 19:44:06,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:06,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486604285] [2020-12-22 19:44:06,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:06,335 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-22 19:44:06,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486604285] [2020-12-22 19:44:06,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440442829] [2020-12-22 19:44:06,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:06,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 19:44:06,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:06,541 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_31|], 5=[|v_#valid_35|]} [2020-12-22 19:44:06,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:06,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:06,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:06,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:06,717 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 21 [2020-12-22 19:44:06,718 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2020-12-22 19:44:06,718 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 46 [2020-12-22 19:44:06,723 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:06,811 INFO L625 ElimStorePlain]: treesize reduction 10, result has 85.5 percent of original size [2020-12-22 19:44:06,827 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2020-12-22 19:44:06,831 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-12-22 19:44:06,937 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-12-22 19:44:06,937 INFO L625 ElimStorePlain]: treesize reduction 30, result has 63.0 percent of original size [2020-12-22 19:44:06,943 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:44:06,944 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:42, output treesize:36 [2020-12-22 19:44:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-22 19:44:07,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:07,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-12-22 19:44:07,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117511266] [2020-12-22 19:44:07,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:44:07,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:07,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:44:07,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:44:07,855 INFO L87 Difference]: Start difference. First operand 124 states and 128 transitions. Second operand 8 states. [2020-12-22 19:44:08,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:08,051 INFO L93 Difference]: Finished difference Result 127 states and 131 transitions. [2020-12-22 19:44:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:44:08,052 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2020-12-22 19:44:08,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:08,054 INFO L225 Difference]: With dead ends: 127 [2020-12-22 19:44:08,054 INFO L226 Difference]: Without dead ends: 127 [2020-12-22 19:44:08,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:44:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-12-22 19:44:08,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-12-22 19:44:08,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-12-22 19:44:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 129 transitions. [2020-12-22 19:44:08,058 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 129 transitions. Word has length 96 [2020-12-22 19:44:08,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:08,058 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 129 transitions. [2020-12-22 19:44:08,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:44:08,058 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 129 transitions. [2020-12-22 19:44:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-22 19:44:08,059 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:08,059 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:08,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:08,268 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:08,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:08,269 INFO L82 PathProgramCache]: Analyzing trace with hash -989735655, now seen corresponding path program 4 times [2020-12-22 19:44:08,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:08,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246643277] [2020-12-22 19:44:08,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:08,727 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 164 proven. 80 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:44:08,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246643277] [2020-12-22 19:44:08,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167587321] [2020-12-22 19:44:08,728 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:08,876 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 19:44:08,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:08,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-22 19:44:08,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:09,793 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 164 proven. 80 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:44:09,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:09,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 33 [2020-12-22 19:44:09,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441697005] [2020-12-22 19:44:09,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-22 19:44:09,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:09,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-22 19:44:09,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=923, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 19:44:09,796 INFO L87 Difference]: Start difference. First operand 125 states and 129 transitions. Second operand 34 states. [2020-12-22 19:44:11,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:11,613 INFO L93 Difference]: Finished difference Result 133 states and 137 transitions. [2020-12-22 19:44:11,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 19:44:11,614 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 100 [2020-12-22 19:44:11,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:11,615 INFO L225 Difference]: With dead ends: 133 [2020-12-22 19:44:11,615 INFO L226 Difference]: Without dead ends: 133 [2020-12-22 19:44:11,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=523, Invalid=1733, Unknown=0, NotChecked=0, Total=2256 [2020-12-22 19:44:11,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-12-22 19:44:11,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 129. [2020-12-22 19:44:11,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-12-22 19:44:11,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 133 transitions. [2020-12-22 19:44:11,621 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 133 transitions. Word has length 100 [2020-12-22 19:44:11,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:11,621 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 133 transitions. [2020-12-22 19:44:11,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-12-22 19:44:11,621 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 133 transitions. [2020-12-22 19:44:11,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 19:44:11,622 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:11,622 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:11,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2020-12-22 19:44:11,825 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:11,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:11,826 INFO L82 PathProgramCache]: Analyzing trace with hash -617034237, now seen corresponding path program 2 times [2020-12-22 19:44:11,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:11,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342474951] [2020-12-22 19:44:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:12,012 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-22 19:44:12,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342474951] [2020-12-22 19:44:12,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105439696] [2020-12-22 19:44:12,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:12,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:44:12,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:12,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 19:44:12,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:12,132 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_32|], 5=[|v_#valid_36|]} [2020-12-22 19:44:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:12,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:12,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:12,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:12,292 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 21 [2020-12-22 19:44:12,293 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2020-12-22 19:44:12,294 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 46 [2020-12-22 19:44:12,296 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:12,400 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-12-22 19:44:12,401 INFO L625 ElimStorePlain]: treesize reduction 10, result has 86.1 percent of original size [2020-12-22 19:44:12,421 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 67 [2020-12-22 19:44:12,424 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:12,568 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-12-22 19:44:12,569 INFO L625 ElimStorePlain]: treesize reduction 26, result has 67.5 percent of original size [2020-12-22 19:44:12,575 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:44:12,576 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:45, output treesize:39 [2020-12-22 19:44:13,691 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2020-12-22 19:44:13,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:13,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2020-12-22 19:44:13,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946326149] [2020-12-22 19:44:13,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 19:44:13,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:13,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 19:44:13,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:44:13,693 INFO L87 Difference]: Start difference. First operand 129 states and 133 transitions. Second operand 11 states. [2020-12-22 19:44:14,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:14,468 INFO L93 Difference]: Finished difference Result 134 states and 138 transitions. [2020-12-22 19:44:14,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 19:44:14,469 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-12-22 19:44:14,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:14,470 INFO L225 Difference]: With dead ends: 134 [2020-12-22 19:44:14,470 INFO L226 Difference]: Without dead ends: 134 [2020-12-22 19:44:14,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2020-12-22 19:44:14,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-12-22 19:44:14,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2020-12-22 19:44:14,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-12-22 19:44:14,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 136 transitions. [2020-12-22 19:44:14,474 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 136 transitions. Word has length 101 [2020-12-22 19:44:14,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:14,475 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 136 transitions. [2020-12-22 19:44:14,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 19:44:14,475 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 136 transitions. [2020-12-22 19:44:14,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-22 19:44:14,475 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:14,476 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:14,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:14,691 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:14,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:14,692 INFO L82 PathProgramCache]: Analyzing trace with hash -699686170, now seen corresponding path program 5 times [2020-12-22 19:44:14,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:14,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813601256] [2020-12-22 19:44:14,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:15,266 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 164 proven. 92 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:44:15,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813601256] [2020-12-22 19:44:15,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381932302] [2020-12-22 19:44:15,267 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:19,551 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2020-12-22 19:44:19,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:19,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-22 19:44:19,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:19,570 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_33|], 10=[|v_#valid_37|]} [2020-12-22 19:44:19,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:19,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:19,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:19,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:19,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:19,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:19,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:19,674 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-22 19:44:19,674 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-22 19:44:19,676 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:19,777 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.0 percent of original size [2020-12-22 19:44:19,817 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:44:19,817 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 207 treesize of output 197 [2020-12-22 19:44:19,820 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:44:19,823 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:44:19,825 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:44:19,826 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-22 19:44:19,828 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:19,975 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2020-12-22 19:44:19,976 INFO L625 ElimStorePlain]: treesize reduction 34, result has 62.2 percent of original size [2020-12-22 19:44:19,986 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:44:19,987 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:44 [2020-12-22 19:44:21,429 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-22 19:44:21,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:21,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 6] total 23 [2020-12-22 19:44:21,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648586426] [2020-12-22 19:44:21,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-22 19:44:21,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:21,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-22 19:44:21,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2020-12-22 19:44:21,432 INFO L87 Difference]: Start difference. First operand 132 states and 136 transitions. Second operand 25 states. [2020-12-22 19:44:22,889 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-12-22 19:44:23,095 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-12-22 19:44:23,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:23,662 INFO L93 Difference]: Finished difference Result 136 states and 140 transitions. [2020-12-22 19:44:23,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-22 19:44:23,663 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 105 [2020-12-22 19:44:23,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:23,665 INFO L225 Difference]: With dead ends: 136 [2020-12-22 19:44:23,665 INFO L226 Difference]: Without dead ends: 136 [2020-12-22 19:44:23,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=370, Invalid=1190, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 19:44:23,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-22 19:44:23,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2020-12-22 19:44:23,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-12-22 19:44:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 137 transitions. [2020-12-22 19:44:23,669 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 137 transitions. Word has length 105 [2020-12-22 19:44:23,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:23,669 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 137 transitions. [2020-12-22 19:44:23,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-22 19:44:23,670 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 137 transitions. [2020-12-22 19:44:23,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 19:44:23,670 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:23,670 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:23,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-12-22 19:44:23,884 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:23,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:23,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1508601145, now seen corresponding path program 6 times [2020-12-22 19:44:23,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:23,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489069540] [2020-12-22 19:44:23,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:24,485 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 164 proven. 109 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-12-22 19:44:24,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489069540] [2020-12-22 19:44:24,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945860952] [2020-12-22 19:44:24,486 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:24,621 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-12-22 19:44:24,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:24,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 19:44:24,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:24,633 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_34|], 10=[|v_#valid_38|]} [2020-12-22 19:44:24,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:24,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:24,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:24,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:24,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:24,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:24,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 19:44:24,740 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-12-22 19:44:24,741 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 43 [2020-12-22 19:44:24,744 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:24,856 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-12-22 19:44:24,857 INFO L625 ElimStorePlain]: treesize reduction 10, result has 88.0 percent of original size [2020-12-22 19:44:24,894 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:44:24,895 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 194 treesize of output 192 [2020-12-22 19:44:24,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:44:24,900 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:44:24,902 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:44:24,903 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:44:24,905 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 19:44:24,908 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:25,199 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2020-12-22 19:44:25,200 INFO L625 ElimStorePlain]: treesize reduction 109, result has 33.9 percent of original size [2020-12-22 19:44:25,205 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:44:25,206 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:44 [2020-12-22 19:44:26,794 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2020-12-22 19:44:26,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:44:26,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 24 [2020-12-22 19:44:26,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842613317] [2020-12-22 19:44:26,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:44:26,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:26,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:44:26,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2020-12-22 19:44:26,797 INFO L87 Difference]: Start difference. First operand 133 states and 137 transitions. Second operand 8 states. [2020-12-22 19:44:27,940 WARN L197 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-12-22 19:44:28,305 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2020-12-22 19:44:28,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:28,363 INFO L93 Difference]: Finished difference Result 132 states and 136 transitions. [2020-12-22 19:44:28,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:44:28,364 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2020-12-22 19:44:28,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:28,365 INFO L225 Difference]: With dead ends: 132 [2020-12-22 19:44:28,365 INFO L226 Difference]: Without dead ends: 132 [2020-12-22 19:44:28,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=142, Invalid=788, Unknown=0, NotChecked=0, Total=930 [2020-12-22 19:44:28,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-12-22 19:44:28,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2020-12-22 19:44:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-22 19:44:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 135 transitions. [2020-12-22 19:44:28,369 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 135 transitions. Word has length 110 [2020-12-22 19:44:28,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:28,369 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 135 transitions. [2020-12-22 19:44:28,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:44:28,370 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 135 transitions. [2020-12-22 19:44:28,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-22 19:44:28,370 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:28,370 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:28,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:28,571 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:28,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:28,572 INFO L82 PathProgramCache]: Analyzing trace with hash 197443008, now seen corresponding path program 1 times [2020-12-22 19:44:28,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:28,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379828822] [2020-12-22 19:44:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:28,646 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2020-12-22 19:44:28,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379828822] [2020-12-22 19:44:28,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:44:28,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:44:28,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656719998] [2020-12-22 19:44:28,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:44:28,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:28,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:44:28,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:44:28,648 INFO L87 Difference]: Start difference. First operand 131 states and 135 transitions. Second operand 5 states. [2020-12-22 19:44:28,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:28,731 INFO L93 Difference]: Finished difference Result 130 states and 134 transitions. [2020-12-22 19:44:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:44:28,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-12-22 19:44:28,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:28,733 INFO L225 Difference]: With dead ends: 130 [2020-12-22 19:44:28,733 INFO L226 Difference]: Without dead ends: 130 [2020-12-22 19:44:28,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:44:28,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-12-22 19:44:28,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-12-22 19:44:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-12-22 19:44:28,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 134 transitions. [2020-12-22 19:44:28,736 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 134 transitions. Word has length 113 [2020-12-22 19:44:28,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:28,737 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 134 transitions. [2020-12-22 19:44:28,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:44:28,737 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 134 transitions. [2020-12-22 19:44:28,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-22 19:44:28,738 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:28,738 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:28,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 19:44:28,738 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:28,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:28,738 INFO L82 PathProgramCache]: Analyzing trace with hash 197443009, now seen corresponding path program 1 times [2020-12-22 19:44:28,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:28,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662886401] [2020-12-22 19:44:28,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:28,838 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-22 19:44:28,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662886401] [2020-12-22 19:44:28,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955422331] [2020-12-22 19:44:28,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:29,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 19:44:29,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-22 19:44:29,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:29,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-22 19:44:29,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473667397] [2020-12-22 19:44:29,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:44:29,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:29,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:44:29,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:44:29,216 INFO L87 Difference]: Start difference. First operand 130 states and 134 transitions. Second operand 8 states. [2020-12-22 19:44:29,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:29,302 INFO L93 Difference]: Finished difference Result 139 states and 143 transitions. [2020-12-22 19:44:29,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:44:29,303 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2020-12-22 19:44:29,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:29,305 INFO L225 Difference]: With dead ends: 139 [2020-12-22 19:44:29,305 INFO L226 Difference]: Without dead ends: 139 [2020-12-22 19:44:29,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:44:29,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-12-22 19:44:29,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 135. [2020-12-22 19:44:29,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-22 19:44:29,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 139 transitions. [2020-12-22 19:44:29,310 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 139 transitions. Word has length 113 [2020-12-22 19:44:29,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:29,310 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 139 transitions. [2020-12-22 19:44:29,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:44:29,310 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 139 transitions. [2020-12-22 19:44:29,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-22 19:44:29,311 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:29,311 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:29,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-12-22 19:44:29,526 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:29,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:29,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1842707180, now seen corresponding path program 2 times [2020-12-22 19:44:29,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:29,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811340706] [2020-12-22 19:44:29,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:29,645 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-22 19:44:29,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811340706] [2020-12-22 19:44:29,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582051786] [2020-12-22 19:44:29,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:29,759 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:44:29,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:29,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 19:44:29,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:29,932 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-12-22 19:44:29,933 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-22 19:44:29,933 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-22 19:44:29,935 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:30,007 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-22 19:44:30,014 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:44:30,014 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-22 19:44:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2020-12-22 19:44:30,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:44:30,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 11 [2020-12-22 19:44:30,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899846426] [2020-12-22 19:44:30,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:44:30,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:30,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:44:30,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:44:30,373 INFO L87 Difference]: Start difference. First operand 135 states and 139 transitions. Second operand 5 states. [2020-12-22 19:44:30,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:30,546 INFO L93 Difference]: Finished difference Result 142 states and 146 transitions. [2020-12-22 19:44:30,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:44:30,547 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2020-12-22 19:44:30,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:30,548 INFO L225 Difference]: With dead ends: 142 [2020-12-22 19:44:30,549 INFO L226 Difference]: Without dead ends: 142 [2020-12-22 19:44:30,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-12-22 19:44:30,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-12-22 19:44:30,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 137. [2020-12-22 19:44:30,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-12-22 19:44:30,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 141 transitions. [2020-12-22 19:44:30,553 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 141 transitions. Word has length 118 [2020-12-22 19:44:30,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:30,553 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 141 transitions. [2020-12-22 19:44:30,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:44:30,553 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 141 transitions. [2020-12-22 19:44:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-22 19:44:30,554 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:30,554 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:30,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-12-22 19:44:30,769 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:30,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:30,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1289347714, now seen corresponding path program 1 times [2020-12-22 19:44:30,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:30,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857870204] [2020-12-22 19:44:30,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:30,865 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2020-12-22 19:44:30,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857870204] [2020-12-22 19:44:30,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:44:30,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 19:44:30,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373647300] [2020-12-22 19:44:30,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:44:30,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:30,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:44:30,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:44:30,868 INFO L87 Difference]: Start difference. First operand 137 states and 141 transitions. Second operand 3 states. [2020-12-22 19:44:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:30,901 INFO L93 Difference]: Finished difference Result 136 states and 140 transitions. [2020-12-22 19:44:30,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:44:30,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-12-22 19:44:30,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:30,903 INFO L225 Difference]: With dead ends: 136 [2020-12-22 19:44:30,903 INFO L226 Difference]: Without dead ends: 136 [2020-12-22 19:44:30,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:44:30,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-22 19:44:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-12-22 19:44:30,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-12-22 19:44:30,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2020-12-22 19:44:30,907 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 119 [2020-12-22 19:44:30,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:30,907 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2020-12-22 19:44:30,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:44:30,908 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2020-12-22 19:44:30,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-22 19:44:30,908 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:30,909 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:30,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-22 19:44:30,909 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:30,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:30,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1289347713, now seen corresponding path program 1 times [2020-12-22 19:44:30,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:30,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706130814] [2020-12-22 19:44:30,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:31,034 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-22 19:44:31,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706130814] [2020-12-22 19:44:31,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098878824] [2020-12-22 19:44:31,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:31,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 19:44:31,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:31,428 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-22 19:44:31,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:31,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-12-22 19:44:31,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703309437] [2020-12-22 19:44:31,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 19:44:31,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:31,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 19:44:31,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:44:31,430 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand 9 states. [2020-12-22 19:44:31,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:31,515 INFO L93 Difference]: Finished difference Result 145 states and 149 transitions. [2020-12-22 19:44:31,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:44:31,516 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 119 [2020-12-22 19:44:31,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:31,517 INFO L225 Difference]: With dead ends: 145 [2020-12-22 19:44:31,517 INFO L226 Difference]: Without dead ends: 145 [2020-12-22 19:44:31,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:44:31,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-22 19:44:31,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 141. [2020-12-22 19:44:31,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-12-22 19:44:31,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 145 transitions. [2020-12-22 19:44:31,521 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 145 transitions. Word has length 119 [2020-12-22 19:44:31,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:31,522 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 145 transitions. [2020-12-22 19:44:31,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 19:44:31,522 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 145 transitions. [2020-12-22 19:44:31,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-22 19:44:31,523 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:31,523 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:31,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-12-22 19:44:31,740 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:31,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:31,741 INFO L82 PathProgramCache]: Analyzing trace with hash 947903122, now seen corresponding path program 2 times [2020-12-22 19:44:31,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:31,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753779088] [2020-12-22 19:44:31,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-12-22 19:44:31,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753779088] [2020-12-22 19:44:31,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966664372] [2020-12-22 19:44:31,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:32,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:44:32,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:32,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 19:44:32,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:32,203 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-12-22 19:44:32,204 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-22 19:44:32,205 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-22 19:44:32,207 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:32,294 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-22 19:44:32,300 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:44:32,300 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-22 19:44:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2020-12-22 19:44:32,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:44:32,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 11 [2020-12-22 19:44:32,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813855334] [2020-12-22 19:44:32,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:44:32,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:32,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:44:32,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:44:32,667 INFO L87 Difference]: Start difference. First operand 141 states and 145 transitions. Second operand 4 states. [2020-12-22 19:44:32,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:32,743 INFO L93 Difference]: Finished difference Result 144 states and 148 transitions. [2020-12-22 19:44:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:44:32,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 124 [2020-12-22 19:44:32,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:32,746 INFO L225 Difference]: With dead ends: 144 [2020-12-22 19:44:32,746 INFO L226 Difference]: Without dead ends: 144 [2020-12-22 19:44:32,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:44:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-22 19:44:32,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-12-22 19:44:32,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-12-22 19:44:32,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 146 transitions. [2020-12-22 19:44:32,751 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 146 transitions. Word has length 124 [2020-12-22 19:44:32,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:32,751 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 146 transitions. [2020-12-22 19:44:32,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:44:32,752 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 146 transitions. [2020-12-22 19:44:32,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-12-22 19:44:32,752 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:32,753 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:32,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-12-22 19:44:32,967 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:32,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:32,968 INFO L82 PathProgramCache]: Analyzing trace with hash -384393803, now seen corresponding path program 1 times [2020-12-22 19:44:32,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:32,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166130877] [2020-12-22 19:44:32,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-12-22 19:44:33,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166130877] [2020-12-22 19:44:33,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8357312] [2020-12-22 19:44:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:33,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 19:44:33,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:33,543 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-12-22 19:44:33,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:33,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-12-22 19:44:33,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770710688] [2020-12-22 19:44:33,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:44:33,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:33,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:44:33,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:44:33,545 INFO L87 Difference]: Start difference. First operand 142 states and 146 transitions. Second operand 10 states. [2020-12-22 19:44:33,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:33,663 INFO L93 Difference]: Finished difference Result 151 states and 155 transitions. [2020-12-22 19:44:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 19:44:33,664 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 128 [2020-12-22 19:44:33,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:33,666 INFO L225 Difference]: With dead ends: 151 [2020-12-22 19:44:33,666 INFO L226 Difference]: Without dead ends: 151 [2020-12-22 19:44:33,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:44:33,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-12-22 19:44:33,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2020-12-22 19:44:33,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-22 19:44:33,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 151 transitions. [2020-12-22 19:44:33,669 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 151 transitions. Word has length 128 [2020-12-22 19:44:33,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:33,670 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 151 transitions. [2020-12-22 19:44:33,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:44:33,670 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 151 transitions. [2020-12-22 19:44:33,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-12-22 19:44:33,671 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:33,671 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:33,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:33,885 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:33,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:33,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1311447550, now seen corresponding path program 2 times [2020-12-22 19:44:33,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:33,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033317352] [2020-12-22 19:44:33,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:34,046 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-12-22 19:44:34,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033317352] [2020-12-22 19:44:34,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443998210] [2020-12-22 19:44:34,047 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:34,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:44:34,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:34,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 19:44:34,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:34,509 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-12-22 19:44:34,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:34,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2020-12-22 19:44:34,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443441611] [2020-12-22 19:44:34,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 19:44:34,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:34,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 19:44:34,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:44:34,511 INFO L87 Difference]: Start difference. First operand 147 states and 151 transitions. Second operand 11 states. [2020-12-22 19:44:34,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:34,649 INFO L93 Difference]: Finished difference Result 156 states and 160 transitions. [2020-12-22 19:44:34,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 19:44:34,650 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 133 [2020-12-22 19:44:34,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:34,652 INFO L225 Difference]: With dead ends: 156 [2020-12-22 19:44:34,652 INFO L226 Difference]: Without dead ends: 156 [2020-12-22 19:44:34,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:44:34,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-22 19:44:34,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152. [2020-12-22 19:44:34,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-12-22 19:44:34,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-12-22 19:44:34,656 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 133 [2020-12-22 19:44:34,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:34,657 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-12-22 19:44:34,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 19:44:34,657 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-12-22 19:44:34,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-12-22 19:44:34,658 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:34,658 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:34,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2020-12-22 19:44:34,869 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:34,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:34,870 INFO L82 PathProgramCache]: Analyzing trace with hash 271107541, now seen corresponding path program 3 times [2020-12-22 19:44:34,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:34,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706559007] [2020-12-22 19:44:34,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:35,048 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-12-22 19:44:35,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706559007] [2020-12-22 19:44:35,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871838809] [2020-12-22 19:44:35,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:35,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 19:44:35,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:35,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 19:44:35,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:35,368 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-12-22 19:44:35,368 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-22 19:44:35,369 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-22 19:44:35,371 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:35,461 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-22 19:44:35,466 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:44:35,467 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-22 19:44:35,974 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2020-12-22 19:44:35,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:44:35,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 16 [2020-12-22 19:44:35,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661544822] [2020-12-22 19:44:35,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 19:44:35,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:35,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 19:44:35,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-12-22 19:44:35,975 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 7 states. [2020-12-22 19:44:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:36,269 INFO L93 Difference]: Finished difference Result 153 states and 157 transitions. [2020-12-22 19:44:36,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:44:36,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-12-22 19:44:36,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:36,272 INFO L225 Difference]: With dead ends: 153 [2020-12-22 19:44:36,272 INFO L226 Difference]: Without dead ends: 153 [2020-12-22 19:44:36,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2020-12-22 19:44:36,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-12-22 19:44:36,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2020-12-22 19:44:36,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-12-22 19:44:36,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 155 transitions. [2020-12-22 19:44:36,276 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 155 transitions. Word has length 138 [2020-12-22 19:44:36,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:36,277 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 155 transitions. [2020-12-22 19:44:36,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 19:44:36,277 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 155 transitions. [2020-12-22 19:44:36,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-12-22 19:44:36,278 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:36,278 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:36,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2020-12-22 19:44:36,492 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:36,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:36,492 INFO L82 PathProgramCache]: Analyzing trace with hash -185600802, now seen corresponding path program 1 times [2020-12-22 19:44:36,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:36,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490541950] [2020-12-22 19:44:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:36,675 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-12-22 19:44:36,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490541950] [2020-12-22 19:44:36,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032013188] [2020-12-22 19:44:36,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:36,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 19:44:36,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:37,138 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-12-22 19:44:37,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:37,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2020-12-22 19:44:37,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183289193] [2020-12-22 19:44:37,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 19:44:37,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:37,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 19:44:37,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:44:37,140 INFO L87 Difference]: Start difference. First operand 151 states and 155 transitions. Second operand 12 states. [2020-12-22 19:44:37,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:37,294 INFO L93 Difference]: Finished difference Result 160 states and 164 transitions. [2020-12-22 19:44:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 19:44:37,295 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 139 [2020-12-22 19:44:37,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:37,296 INFO L225 Difference]: With dead ends: 160 [2020-12-22 19:44:37,296 INFO L226 Difference]: Without dead ends: 160 [2020-12-22 19:44:37,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:44:37,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-12-22 19:44:37,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2020-12-22 19:44:37,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-22 19:44:37,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 160 transitions. [2020-12-22 19:44:37,299 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 160 transitions. Word has length 139 [2020-12-22 19:44:37,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:37,300 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 160 transitions. [2020-12-22 19:44:37,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 19:44:37,300 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 160 transitions. [2020-12-22 19:44:37,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-22 19:44:37,301 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:37,301 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:37,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:37,513 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:37,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:37,514 INFO L82 PathProgramCache]: Analyzing trace with hash 811821681, now seen corresponding path program 2 times [2020-12-22 19:44:37,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:37,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451282367] [2020-12-22 19:44:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-12-22 19:44:37,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451282367] [2020-12-22 19:44:37,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725518517] [2020-12-22 19:44:37,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:37,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:44:37,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:37,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 19:44:37,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:38,031 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-12-22 19:44:38,032 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-22 19:44:38,032 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-22 19:44:38,034 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:38,134 INFO L625 ElimStorePlain]: treesize reduction 10, result has 81.8 percent of original size [2020-12-22 19:44:38,140 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:44:38,140 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:25, output treesize:27 [2020-12-22 19:44:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2020-12-22 19:44:38,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:38,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5] total 17 [2020-12-22 19:44:38,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487478480] [2020-12-22 19:44:38,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-22 19:44:38,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:38,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-22 19:44:38,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-12-22 19:44:38,735 INFO L87 Difference]: Start difference. First operand 156 states and 160 transitions. Second operand 17 states. [2020-12-22 19:44:39,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:39,628 INFO L93 Difference]: Finished difference Result 160 states and 164 transitions. [2020-12-22 19:44:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 19:44:39,629 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 144 [2020-12-22 19:44:39,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:39,630 INFO L225 Difference]: With dead ends: 160 [2020-12-22 19:44:39,630 INFO L226 Difference]: Without dead ends: 160 [2020-12-22 19:44:39,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-12-22 19:44:39,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-12-22 19:44:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2020-12-22 19:44:39,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-12-22 19:44:39,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 162 transitions. [2020-12-22 19:44:39,634 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 162 transitions. Word has length 144 [2020-12-22 19:44:39,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:39,635 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 162 transitions. [2020-12-22 19:44:39,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-22 19:44:39,635 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 162 transitions. [2020-12-22 19:44:39,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-12-22 19:44:39,636 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:39,636 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:39,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2020-12-22 19:44:39,849 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:39,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:39,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1038633797, now seen corresponding path program 1 times [2020-12-22 19:44:39,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:39,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078844107] [2020-12-22 19:44:39,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:39,949 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-12-22 19:44:39,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078844107] [2020-12-22 19:44:39,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367189137] [2020-12-22 19:44:39,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:40,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 19:44:40,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:40,435 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-12-22 19:44:40,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:40,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 19:44:40,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485413872] [2020-12-22 19:44:40,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:44:40,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:40,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:44:40,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:44:40,436 INFO L87 Difference]: Start difference. First operand 158 states and 162 transitions. Second operand 5 states. [2020-12-22 19:44:40,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:40,477 INFO L93 Difference]: Finished difference Result 167 states and 171 transitions. [2020-12-22 19:44:40,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:44:40,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2020-12-22 19:44:40,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:40,479 INFO L225 Difference]: With dead ends: 167 [2020-12-22 19:44:40,479 INFO L226 Difference]: Without dead ends: 167 [2020-12-22 19:44:40,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:44:40,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-12-22 19:44:40,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 163. [2020-12-22 19:44:40,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-12-22 19:44:40,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 167 transitions. [2020-12-22 19:44:40,483 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 167 transitions. Word has length 151 [2020-12-22 19:44:40,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:40,484 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 167 transitions. [2020-12-22 19:44:40,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:44:40,484 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 167 transitions. [2020-12-22 19:44:40,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-22 19:44:40,484 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:40,485 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:40,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:40,700 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:40,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:40,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1960877391, now seen corresponding path program 2 times [2020-12-22 19:44:40,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:40,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337321451] [2020-12-22 19:44:40,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2020-12-22 19:44:40,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337321451] [2020-12-22 19:44:40,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:44:40,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:44:40,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142690402] [2020-12-22 19:44:40,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:44:40,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:40,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:44:40,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:44:40,795 INFO L87 Difference]: Start difference. First operand 163 states and 167 transitions. Second operand 5 states. [2020-12-22 19:44:40,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:40,876 INFO L93 Difference]: Finished difference Result 162 states and 166 transitions. [2020-12-22 19:44:40,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:44:40,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-12-22 19:44:40,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:40,878 INFO L225 Difference]: With dead ends: 162 [2020-12-22 19:44:40,878 INFO L226 Difference]: Without dead ends: 162 [2020-12-22 19:44:40,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:44:40,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-22 19:44:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-12-22 19:44:40,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-22 19:44:40,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 166 transitions. [2020-12-22 19:44:40,882 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 166 transitions. Word has length 156 [2020-12-22 19:44:40,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:40,883 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 166 transitions. [2020-12-22 19:44:40,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:44:40,883 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 166 transitions. [2020-12-22 19:44:40,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-22 19:44:40,884 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:40,884 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:40,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-12-22 19:44:40,884 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:40,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1960877392, now seen corresponding path program 1 times [2020-12-22 19:44:40,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:40,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201557524] [2020-12-22 19:44:40,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-12-22 19:44:41,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201557524] [2020-12-22 19:44:41,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427071927] [2020-12-22 19:44:41,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:41,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 19:44:41,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:41,538 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-12-22 19:44:41,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:41,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-22 19:44:41,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123215192] [2020-12-22 19:44:41,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:44:41,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:41,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:44:41,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:44:41,540 INFO L87 Difference]: Start difference. First operand 162 states and 166 transitions. Second operand 6 states. [2020-12-22 19:44:41,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:41,586 INFO L93 Difference]: Finished difference Result 171 states and 175 transitions. [2020-12-22 19:44:41,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:44:41,587 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-12-22 19:44:41,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:41,589 INFO L225 Difference]: With dead ends: 171 [2020-12-22 19:44:41,589 INFO L226 Difference]: Without dead ends: 171 [2020-12-22 19:44:41,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:44:41,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-12-22 19:44:41,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2020-12-22 19:44:41,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-12-22 19:44:41,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 171 transitions. [2020-12-22 19:44:41,594 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 171 transitions. Word has length 156 [2020-12-22 19:44:41,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:41,594 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 171 transitions. [2020-12-22 19:44:41,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:44:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 171 transitions. [2020-12-22 19:44:41,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-12-22 19:44:41,596 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:41,596 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:41,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2020-12-22 19:44:41,810 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:41,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:41,810 INFO L82 PathProgramCache]: Analyzing trace with hash 536211772, now seen corresponding path program 2 times [2020-12-22 19:44:41,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:41,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129406840] [2020-12-22 19:44:41,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-12-22 19:44:41,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129406840] [2020-12-22 19:44:41,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112550436] [2020-12-22 19:44:41,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:42,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:44:42,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:42,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 19:44:42,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:42,299 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-12-22 19:44:42,299 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-22 19:44:42,300 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-22 19:44:42,302 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:42,381 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-22 19:44:42,387 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:44:42,387 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-22 19:44:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2020-12-22 19:44:42,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:44:42,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 19:44:42,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011601590] [2020-12-22 19:44:42,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:44:42,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:42,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:44:42,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:44:42,848 INFO L87 Difference]: Start difference. First operand 167 states and 171 transitions. Second operand 5 states. [2020-12-22 19:44:42,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:42,971 INFO L93 Difference]: Finished difference Result 171 states and 175 transitions. [2020-12-22 19:44:42,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:44:42,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-12-22 19:44:42,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:42,974 INFO L225 Difference]: With dead ends: 171 [2020-12-22 19:44:42,974 INFO L226 Difference]: Without dead ends: 171 [2020-12-22 19:44:42,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:44:42,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-12-22 19:44:42,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2020-12-22 19:44:42,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-22 19:44:42,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 173 transitions. [2020-12-22 19:44:42,978 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 173 transitions. Word has length 161 [2020-12-22 19:44:42,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:42,979 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 173 transitions. [2020-12-22 19:44:42,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:44:42,979 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 173 transitions. [2020-12-22 19:44:42,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-12-22 19:44:42,980 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:42,981 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:43,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2020-12-22 19:44:43,196 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:43,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:43,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1693889727, now seen corresponding path program 1 times [2020-12-22 19:44:43,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:43,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583234593] [2020-12-22 19:44:43,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-12-22 19:44:43,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583234593] [2020-12-22 19:44:43,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589044000] [2020-12-22 19:44:43,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:43,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 19:44:43,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-12-22 19:44:43,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:43,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-22 19:44:43,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558073501] [2020-12-22 19:44:43,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 19:44:43,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:43,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 19:44:43,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:44:43,836 INFO L87 Difference]: Start difference. First operand 169 states and 173 transitions. Second operand 7 states. [2020-12-22 19:44:43,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:43,895 INFO L93 Difference]: Finished difference Result 178 states and 182 transitions. [2020-12-22 19:44:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:44:43,896 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-12-22 19:44:43,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:43,897 INFO L225 Difference]: With dead ends: 178 [2020-12-22 19:44:43,897 INFO L226 Difference]: Without dead ends: 178 [2020-12-22 19:44:43,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:44:43,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-22 19:44:43,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 174. [2020-12-22 19:44:43,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-12-22 19:44:43,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 178 transitions. [2020-12-22 19:44:43,902 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 178 transitions. Word has length 165 [2020-12-22 19:44:43,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:43,903 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 178 transitions. [2020-12-22 19:44:43,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 19:44:43,903 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 178 transitions. [2020-12-22 19:44:43,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-12-22 19:44:43,904 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:43,904 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:44,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-12-22 19:44:44,119 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:44,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:44,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1692600915, now seen corresponding path program 2 times [2020-12-22 19:44:44,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:44,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856417587] [2020-12-22 19:44:44,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-12-22 19:44:44,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856417587] [2020-12-22 19:44:44,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574745070] [2020-12-22 19:44:44,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:44,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:44:44,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:44,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 19:44:44,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:44,843 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-12-22 19:44:44,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:44:44,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-22 19:44:44,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538660835] [2020-12-22 19:44:44,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:44:44,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:44,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:44:44,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:44:44,845 INFO L87 Difference]: Start difference. First operand 174 states and 178 transitions. Second operand 8 states. [2020-12-22 19:44:44,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:44,917 INFO L93 Difference]: Finished difference Result 183 states and 187 transitions. [2020-12-22 19:44:44,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:44:44,918 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2020-12-22 19:44:44,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:44,920 INFO L225 Difference]: With dead ends: 183 [2020-12-22 19:44:44,920 INFO L226 Difference]: Without dead ends: 183 [2020-12-22 19:44:44,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:44:44,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-12-22 19:44:44,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 179. [2020-12-22 19:44:44,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-12-22 19:44:44,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 183 transitions. [2020-12-22 19:44:44,924 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 183 transitions. Word has length 170 [2020-12-22 19:44:44,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:44,924 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 183 transitions. [2020-12-22 19:44:44,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:44:44,925 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 183 transitions. [2020-12-22 19:44:44,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-12-22 19:44:44,926 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:44,926 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:45,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2020-12-22 19:44:45,141 INFO L429 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:45,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:45,142 INFO L82 PathProgramCache]: Analyzing trace with hash -2131685057, now seen corresponding path program 3 times [2020-12-22 19:44:45,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:45,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849551863] [2020-12-22 19:44:45,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:45,282 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-12-22 19:44:45,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849551863] [2020-12-22 19:44:45,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327756365] [2020-12-22 19:44:45,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:45,444 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 19:44:45,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:44:45,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 19:44:45,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:45,644 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2020-12-22 19:44:45,645 INFO L348 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2020-12-22 19:44:45,646 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2020-12-22 19:44:45,648 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:44:45,738 INFO L625 ElimStorePlain]: treesize reduction 10, result has 80.8 percent of original size [2020-12-22 19:44:45,743 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 19:44:45,744 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:22, output treesize:24 [2020-12-22 19:44:46,357 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2020-12-22 19:44:46,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:44:46,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 13 [2020-12-22 19:44:46,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327994523] [2020-12-22 19:44:46,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 19:44:46,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:46,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 19:44:46,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-22 19:44:46,360 INFO L87 Difference]: Start difference. First operand 179 states and 183 transitions. Second operand 7 states. [2020-12-22 19:44:46,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:46,626 INFO L93 Difference]: Finished difference Result 180 states and 184 transitions. [2020-12-22 19:44:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:44:46,627 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-12-22 19:44:46,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:46,629 INFO L225 Difference]: With dead ends: 180 [2020-12-22 19:44:46,629 INFO L226 Difference]: Without dead ends: 180 [2020-12-22 19:44:46,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-12-22 19:44:46,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-12-22 19:44:46,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2020-12-22 19:44:46,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-12-22 19:44:46,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 181 transitions. [2020-12-22 19:44:46,635 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 181 transitions. Word has length 175 [2020-12-22 19:44:46,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:46,635 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 181 transitions. [2020-12-22 19:44:46,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 19:44:46,635 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 181 transitions. [2020-12-22 19:44:46,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-12-22 19:44:46,636 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:44:46,636 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:44:46,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:46,851 INFO L429 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION]=== [2020-12-22 19:44:46,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:44:46,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1657728922, now seen corresponding path program 1 times [2020-12-22 19:44:46,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:44:46,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652371680] [2020-12-22 19:44:46,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:44:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2020-12-22 19:44:46,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652371680] [2020-12-22 19:44:46,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928550319] [2020-12-22 19:44:46,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:44:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:44:47,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 19:44:47,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:44:47,494 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2020-12-22 19:44:47,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:44:47,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 19:44:47,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805046345] [2020-12-22 19:44:47,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:44:47,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:44:47,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:44:47,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:44:47,496 INFO L87 Difference]: Start difference. First operand 177 states and 181 transitions. Second operand 3 states. [2020-12-22 19:44:47,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:44:47,523 INFO L93 Difference]: Finished difference Result 176 states and 180 transitions. [2020-12-22 19:44:47,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:44:47,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-12-22 19:44:47,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:44:47,525 INFO L225 Difference]: With dead ends: 176 [2020-12-22 19:44:47,525 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 19:44:47,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:44:47,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 19:44:47,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 19:44:47,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 19:44:47,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 19:44:47,526 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2020-12-22 19:44:47,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:44:47,526 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 19:44:47,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:44:47,526 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 19:44:47,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 19:44:47,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2020-12-22 19:44:47,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 07:44:47 BoogieIcfgContainer [2020-12-22 19:44:47,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 19:44:47,735 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 19:44:47,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 19:44:47,735 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 19:44:47,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:43:23" (3/4) ... [2020-12-22 19:44:47,740 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 19:44:47,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 19:44:47,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 19:44:47,754 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 19:44:47,754 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 19:44:47,816 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/memsafety-ext3/getNumbers4-1.c-witness.graphml [2020-12-22 19:44:47,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 19:44:47,821 INFO L168 Benchmark]: Toolchain (without parser) took 86156.02 ms. Allocated memory was 151.0 MB in the beginning and 331.4 MB in the end (delta: 180.4 MB). Free memory was 126.9 MB in the beginning and 274.7 MB in the end (delta: -147.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:44:47,821 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 123.8 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 19:44:47,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.22 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 116.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 19:44:47,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.00 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 114.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:44:47,822 INFO L168 Benchmark]: Boogie Preprocessor took 35.28 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 113.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 19:44:47,823 INFO L168 Benchmark]: RCFGBuilder took 915.77 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 123.3 MB in the end (delta: -10.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-12-22 19:44:47,823 INFO L168 Benchmark]: TraceAbstraction took 84714.48 ms. Allocated memory was 151.0 MB in the beginning and 331.4 MB in the end (delta: 180.4 MB). Free memory was 122.7 MB in the beginning and 277.9 MB in the end (delta: -155.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. [2020-12-22 19:44:47,823 INFO L168 Benchmark]: Witness Printer took 81.30 ms. Allocated memory is still 331.4 MB. Free memory was 277.9 MB in the beginning and 274.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:44:47,828 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 123.8 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 347.22 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 116.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.00 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 114.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.28 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 113.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 915.77 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 123.3 MB in the end (delta: -10.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 84714.48 ms. Allocated memory was 151.0 MB in the beginning and 331.4 MB in the end (delta: 180.4 MB). Free memory was 122.7 MB in the beginning and 277.9 MB in the end (delta: -155.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. * Witness Printer took 81.30 ms. Allocated memory is still 331.4 MB. Free memory was 277.9 MB in the beginning and 274.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 47]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 43]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 47]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 17 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 84.6s, OverallIterations: 53, TraceHistogramMax: 10, AutomataDifference: 18.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1874 SDtfs, 6183 SDslu, 7037 SDs, 0 SdLazy, 5289 SolverSat, 397 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4455 GetRequests, 3709 SyntacticMatches, 92 SemanticMatches, 654 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3040 ImplicationChecksByTransitivity, 25.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 53 MinimizatonAttempts, 186 StatesRemovedByMinimization, 43 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.7s SsaConstructionTime, 8.0s SatisfiabilityAnalysisTime, 42.6s InterpolantComputationTime, 8307 NumberOfCodeBlocks, 7064 NumberOfCodeBlocksAsserted, 133 NumberOfCheckSat, 8208 ConstructedInterpolants, 669 QuantifiedInterpolants, 5556023 SizeOfPredicates, 146 NumberOfNonLiveVariables, 9802 ConjunctsInSsa, 474 ConjunctsInUnsatCore, 99 InterpolantComputations, 21 PerfectInterpolantSequences, 25285/29644 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...