/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-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:17:18,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:17:18,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:17:18,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:17:18,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:17:18,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:17:18,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:17:18,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:17:18,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:17:18,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:17:18,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:17:18,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:17:18,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:17:18,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:17:18,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:17:18,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:17:18,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:17:18,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:17:18,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:17:18,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:17:18,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:17:18,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:17:18,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:17:18,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:17:18,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 05:17:18,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:17:18,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:17:18,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:17:18,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:17:18,996 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:17:18,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:17:19,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:17:19,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:17:19,001 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:17:19,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:17:19,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:17:19,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:17:19,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:17:19,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:17:19,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:17:19,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:17:19,004 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:17:19,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:17:19,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:17:19,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:17:19,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:17:19,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:17:19,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:17:19,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:17:19,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:17:19,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:17:19,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:17:19,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:17:19,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:17:19,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:17:19,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:17:19,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:17:19,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:17:19,513 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:17:19,514 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:17:19,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2020-12-22 05:17:19,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6adc3b20d/9dfc3fe3a34e42399add43cadb1fb925/FLAG83a6071e1 [2020-12-22 05:17:20,238 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:17:20,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2020-12-22 05:17:20,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6adc3b20d/9dfc3fe3a34e42399add43cadb1fb925/FLAG83a6071e1 [2020-12-22 05:17:20,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6adc3b20d/9dfc3fe3a34e42399add43cadb1fb925 [2020-12-22 05:17:20,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:17:20,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:17:20,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:17:20,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:17:20,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:17:20,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:17:20" (1/1) ... [2020-12-22 05:17:20,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b3231a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20, skipping insertion in model container [2020-12-22 05:17:20,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:17:20" (1/1) ... [2020-12-22 05:17:20,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:17:20,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:17:20,856 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c[490,503] [2020-12-22 05:17:20,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:17:20,912 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:17:20,927 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c[490,503] [2020-12-22 05:17:20,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:17:20,980 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:17:20,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20 WrapperNode [2020-12-22 05:17:20,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:17:20,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:17:20,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:17:20,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:17:20,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20" (1/1) ... [2020-12-22 05:17:20,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20" (1/1) ... [2020-12-22 05:17:21,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:17:21,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:17:21,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:17:21,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:17:21,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20" (1/1) ... [2020-12-22 05:17:21,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20" (1/1) ... [2020-12-22 05:17:21,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20" (1/1) ... [2020-12-22 05:17:21,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20" (1/1) ... [2020-12-22 05:17:21,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20" (1/1) ... [2020-12-22 05:17:21,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20" (1/1) ... [2020-12-22 05:17:21,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20" (1/1) ... [2020-12-22 05:17:21,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:17:21,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:17:21,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:17:21,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:17:21,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20" (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 05:17:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:17:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:17:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:17:21,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:17:21,531 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:17:21,532 INFO L299 CfgBuilder]: Removed 25 assume(true) statements. [2020-12-22 05:17:21,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:17:21 BoogieIcfgContainer [2020-12-22 05:17:21,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:17:21,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:17:21,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:17:21,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:17:21,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:17:20" (1/3) ... [2020-12-22 05:17:21,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebf842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:17:21, skipping insertion in model container [2020-12-22 05:17:21,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:17:20" (2/3) ... [2020-12-22 05:17:21,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebf842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:17:21, skipping insertion in model container [2020-12-22 05:17:21,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:17:21" (3/3) ... [2020-12-22 05:17:21,543 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound2.c [2020-12-22 05:17:21,552 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:17:21,562 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-12-22 05:17:21,611 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-22 05:17:21,664 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:17:21,665 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:17:21,665 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:17:21,665 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:17:21,665 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:17:21,665 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:17:21,665 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:17:21,665 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:17:21,688 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-12-22 05:17:21,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 05:17:21,693 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:21,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:21,695 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:21,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:21,703 INFO L82 PathProgramCache]: Analyzing trace with hash -174497841, now seen corresponding path program 1 times [2020-12-22 05:17:21,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:21,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754165866] [2020-12-22 05:17:21,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:21,968 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 05:17:21,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754165866] [2020-12-22 05:17:21,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:17:21,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:17:21,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003969003] [2020-12-22 05:17:21,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 05:17:21,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:21,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 05:17:21,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:17:22,001 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2020-12-22 05:17:22,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:22,032 INFO L93 Difference]: Finished difference Result 79 states and 112 transitions. [2020-12-22 05:17:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 05:17:22,034 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-12-22 05:17:22,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:22,044 INFO L225 Difference]: With dead ends: 79 [2020-12-22 05:17:22,045 INFO L226 Difference]: Without dead ends: 37 [2020-12-22 05:17:22,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 05:17:22,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-22 05:17:22,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-22 05:17:22,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-22 05:17:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-12-22 05:17:22,096 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 14 [2020-12-22 05:17:22,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:22,097 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-12-22 05:17:22,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 05:17:22,097 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-12-22 05:17:22,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 05:17:22,098 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:22,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:22,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:17:22,100 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:22,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:22,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1454170515, now seen corresponding path program 1 times [2020-12-22 05:17:22,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:22,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214479140] [2020-12-22 05:17:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:22,165 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:22,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162303153] [2020-12-22 05:17:22,165 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 05:17:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:22,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 05:17:22,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:22,334 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 05:17:22,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214479140] [2020-12-22 05:17:22,335 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:22,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162303153] [2020-12-22 05:17:22,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:17:22,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:17:22,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263035334] [2020-12-22 05:17:22,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:17:22,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:22,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:17:22,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:17:22,339 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 5 states. [2020-12-22 05:17:22,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:22,445 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2020-12-22 05:17:22,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:17:22,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 05:17:22,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:22,447 INFO L225 Difference]: With dead ends: 64 [2020-12-22 05:17:22,447 INFO L226 Difference]: Without dead ends: 60 [2020-12-22 05:17:22,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 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 05:17:22,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-22 05:17:22,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 39. [2020-12-22 05:17:22,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-22 05:17:22,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-12-22 05:17:22,458 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 15 [2020-12-22 05:17:22,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:22,458 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-12-22 05:17:22,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:17:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-12-22 05:17:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 05:17:22,459 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:22,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:22,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 05:17:22,675 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:22,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:22,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1580206288, now seen corresponding path program 1 times [2020-12-22 05:17:22,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:22,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130604065] [2020-12-22 05:17:22,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:22,707 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:22,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [494871969] [2020-12-22 05:17:22,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 05:17:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:22,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-22 05:17:22,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:23,052 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 05:17:23,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130604065] [2020-12-22 05:17:23,053 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:23,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494871969] [2020-12-22 05:17:23,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:17:23,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 05:17:23,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142409003] [2020-12-22 05:17:23,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 05:17:23,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:23,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 05:17:23,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:17:23,056 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 12 states. [2020-12-22 05:17:23,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:23,477 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2020-12-22 05:17:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 05:17:23,478 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2020-12-22 05:17:23,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:23,479 INFO L225 Difference]: With dead ends: 60 [2020-12-22 05:17:23,480 INFO L226 Difference]: Without dead ends: 58 [2020-12-22 05:17:23,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2020-12-22 05:17:23,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-12-22 05:17:23,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 51. [2020-12-22 05:17:23,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-22 05:17:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-12-22 05:17:23,489 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 17 [2020-12-22 05:17:23,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:23,490 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-12-22 05:17:23,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 05:17:23,490 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-12-22 05:17:23,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 05:17:23,491 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:23,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:23,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:23,706 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:23,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:23,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1840022701, now seen corresponding path program 1 times [2020-12-22 05:17:23,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:23,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610228750] [2020-12-22 05:17:23,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:23,725 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:23,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1895600607] [2020-12-22 05:17:23,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 05:17:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:23,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-22 05:17:23,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:24,024 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 05:17:24,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610228750] [2020-12-22 05:17:24,025 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:24,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895600607] [2020-12-22 05:17:24,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:17:24,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 05:17:24,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883603983] [2020-12-22 05:17:24,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 05:17:24,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:24,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 05:17:24,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:17:24,029 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 12 states. [2020-12-22 05:17:24,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:24,445 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2020-12-22 05:17:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 05:17:24,445 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2020-12-22 05:17:24,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:24,447 INFO L225 Difference]: With dead ends: 58 [2020-12-22 05:17:24,447 INFO L226 Difference]: Without dead ends: 56 [2020-12-22 05:17:24,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2020-12-22 05:17:24,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-22 05:17:24,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2020-12-22 05:17:24,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-22 05:17:24,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2020-12-22 05:17:24,469 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 19 [2020-12-22 05:17:24,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:24,469 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2020-12-22 05:17:24,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 05:17:24,470 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2020-12-22 05:17:24,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 05:17:24,470 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:24,472 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:24,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:24,686 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:24,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:24,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1412177226, now seen corresponding path program 1 times [2020-12-22 05:17:24,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:24,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233037168] [2020-12-22 05:17:24,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:24,704 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:24,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [973786446] [2020-12-22 05:17:24,705 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 05:17:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:24,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 05:17:24,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:24,830 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 05:17:24,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233037168] [2020-12-22 05:17:24,830 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:24,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973786446] [2020-12-22 05:17:24,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:24,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-22 05:17:24,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226062993] [2020-12-22 05:17:24,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 05:17:24,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:24,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 05:17:24,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:17:24,833 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand 7 states. [2020-12-22 05:17:25,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:25,012 INFO L93 Difference]: Finished difference Result 140 states and 157 transitions. [2020-12-22 05:17:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 05:17:25,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-12-22 05:17:25,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:25,014 INFO L225 Difference]: With dead ends: 140 [2020-12-22 05:17:25,014 INFO L226 Difference]: Without dead ends: 136 [2020-12-22 05:17:25,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:17:25,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-22 05:17:25,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 75. [2020-12-22 05:17:25,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-12-22 05:17:25,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 91 transitions. [2020-12-22 05:17:25,027 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 91 transitions. Word has length 20 [2020-12-22 05:17:25,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:25,027 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 91 transitions. [2020-12-22 05:17:25,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 05:17:25,027 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 91 transitions. [2020-12-22 05:17:25,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 05:17:25,028 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:25,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:25,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:25,243 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:25,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:25,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1264867958, now seen corresponding path program 1 times [2020-12-22 05:17:25,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:25,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548619310] [2020-12-22 05:17:25,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:25,263 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:25,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [207692332] [2020-12-22 05:17:25,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 05:17:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:25,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-22 05:17:25,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:25,443 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 05:17:25,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548619310] [2020-12-22 05:17:25,444 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:25,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207692332] [2020-12-22 05:17:25,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:17:25,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 05:17:25,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105524077] [2020-12-22 05:17:25,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:17:25,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:25,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:17:25,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:17:25,447 INFO L87 Difference]: Start difference. First operand 75 states and 91 transitions. Second operand 8 states. [2020-12-22 05:17:25,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:25,679 INFO L93 Difference]: Finished difference Result 95 states and 110 transitions. [2020-12-22 05:17:25,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 05:17:25,679 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-12-22 05:17:25,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:25,680 INFO L225 Difference]: With dead ends: 95 [2020-12-22 05:17:25,681 INFO L226 Difference]: Without dead ends: 93 [2020-12-22 05:17:25,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:17:25,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-22 05:17:25,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2020-12-22 05:17:25,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-22 05:17:25,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 102 transitions. [2020-12-22 05:17:25,695 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 102 transitions. Word has length 21 [2020-12-22 05:17:25,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:25,695 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 102 transitions. [2020-12-22 05:17:25,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:17:25,695 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 102 transitions. [2020-12-22 05:17:25,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 05:17:25,696 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:25,696 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:25,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 05:17:25,913 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:25,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:25,914 INFO L82 PathProgramCache]: Analyzing trace with hash 94063923, now seen corresponding path program 1 times [2020-12-22 05:17:25,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:25,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531393056] [2020-12-22 05:17:25,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:25,931 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:25,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565728784] [2020-12-22 05:17:25,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 05:17:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:25,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-22 05:17:26,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:26,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 05:17:26,326 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 05:17:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:17:26,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531393056] [2020-12-22 05:17:26,346 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:26,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565728784] [2020-12-22 05:17:26,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:26,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-12-22 05:17:26,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575413692] [2020-12-22 05:17:26,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 05:17:26,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:26,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 05:17:26,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-22 05:17:26,348 INFO L87 Difference]: Start difference. First operand 84 states and 102 transitions. Second operand 13 states. [2020-12-22 05:17:26,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:26,814 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2020-12-22 05:17:26,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 05:17:26,814 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 22 [2020-12-22 05:17:26,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:26,816 INFO L225 Difference]: With dead ends: 119 [2020-12-22 05:17:26,816 INFO L226 Difference]: Without dead ends: 117 [2020-12-22 05:17:26,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-12-22 05:17:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-12-22 05:17:26,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 101. [2020-12-22 05:17:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-22 05:17:26,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 125 transitions. [2020-12-22 05:17:26,831 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 125 transitions. Word has length 22 [2020-12-22 05:17:26,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:26,832 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 125 transitions. [2020-12-22 05:17:26,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 05:17:26,832 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2020-12-22 05:17:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 05:17:26,833 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:26,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:27,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:27,047 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:27,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:27,048 INFO L82 PathProgramCache]: Analyzing trace with hash 62520889, now seen corresponding path program 1 times [2020-12-22 05:17:27,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:27,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137641888] [2020-12-22 05:17:27,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:27,069 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:27,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1903231456] [2020-12-22 05:17:27,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 05:17:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:27,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 05:17:27,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:27,183 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 05:17:27,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137641888] [2020-12-22 05:17:27,183 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:27,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903231456] [2020-12-22 05:17:27,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:17:27,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:17:27,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123329978] [2020-12-22 05:17:27,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:17:27,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:27,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:17:27,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:17:27,185 INFO L87 Difference]: Start difference. First operand 101 states and 125 transitions. Second operand 5 states. [2020-12-22 05:17:27,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:27,327 INFO L93 Difference]: Finished difference Result 192 states and 240 transitions. [2020-12-22 05:17:27,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:17:27,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-12-22 05:17:27,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:27,330 INFO L225 Difference]: With dead ends: 192 [2020-12-22 05:17:27,330 INFO L226 Difference]: Without dead ends: 190 [2020-12-22 05:17:27,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:17:27,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-12-22 05:17:27,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 141. [2020-12-22 05:17:27,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-12-22 05:17:27,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 174 transitions. [2020-12-22 05:17:27,357 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 174 transitions. Word has length 23 [2020-12-22 05:17:27,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:27,358 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 174 transitions. [2020-12-22 05:17:27,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:17:27,358 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 174 transitions. [2020-12-22 05:17:27,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 05:17:27,359 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:27,359 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:27,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:27,574 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:27,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:27,576 INFO L82 PathProgramCache]: Analyzing trace with hash 201274102, now seen corresponding path program 1 times [2020-12-22 05:17:27,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:27,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653804214] [2020-12-22 05:17:27,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:27,591 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:27,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [598037049] [2020-12-22 05:17:27,591 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 05:17:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:27,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 50 conjunts are in the unsatisfiable core [2020-12-22 05:17:27,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:28,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:17:28,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653804214] [2020-12-22 05:17:28,118 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:28,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598037049] [2020-12-22 05:17:28,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:28,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-12-22 05:17:28,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219133113] [2020-12-22 05:17:28,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-22 05:17:28,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:28,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-22 05:17:28,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-12-22 05:17:28,121 INFO L87 Difference]: Start difference. First operand 141 states and 174 transitions. Second operand 15 states. [2020-12-22 05:17:28,862 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 31 [2020-12-22 05:17:29,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:29,253 INFO L93 Difference]: Finished difference Result 157 states and 184 transitions. [2020-12-22 05:17:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 05:17:29,254 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2020-12-22 05:17:29,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:29,255 INFO L225 Difference]: With dead ends: 157 [2020-12-22 05:17:29,255 INFO L226 Difference]: Without dead ends: 155 [2020-12-22 05:17:29,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=209, Invalid=441, Unknown=0, NotChecked=0, Total=650 [2020-12-22 05:17:29,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-12-22 05:17:29,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 141. [2020-12-22 05:17:29,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-12-22 05:17:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 172 transitions. [2020-12-22 05:17:29,281 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 172 transitions. Word has length 24 [2020-12-22 05:17:29,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:29,284 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 172 transitions. [2020-12-22 05:17:29,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-22 05:17:29,284 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 172 transitions. [2020-12-22 05:17:29,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 05:17:29,285 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:29,286 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:29,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-22 05:17:29,500 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:29,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:29,501 INFO L82 PathProgramCache]: Analyzing trace with hash 151041369, now seen corresponding path program 1 times [2020-12-22 05:17:29,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:29,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297399597] [2020-12-22 05:17:29,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:29,515 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:29,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176899981] [2020-12-22 05:17:29,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 05:17:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:29,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-22 05:17:29,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:29,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:17:29,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297399597] [2020-12-22 05:17:29,734 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:29,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176899981] [2020-12-22 05:17:29,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:29,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-12-22 05:17:29,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590081478] [2020-12-22 05:17:29,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 05:17:29,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:29,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 05:17:29,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:17:29,736 INFO L87 Difference]: Start difference. First operand 141 states and 172 transitions. Second operand 11 states. [2020-12-22 05:17:30,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:30,145 INFO L93 Difference]: Finished difference Result 254 states and 297 transitions. [2020-12-22 05:17:30,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 05:17:30,146 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2020-12-22 05:17:30,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:30,147 INFO L225 Difference]: With dead ends: 254 [2020-12-22 05:17:30,148 INFO L226 Difference]: Without dead ends: 252 [2020-12-22 05:17:30,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2020-12-22 05:17:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-12-22 05:17:30,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 175. [2020-12-22 05:17:30,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-22 05:17:30,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 214 transitions. [2020-12-22 05:17:30,172 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 214 transitions. Word has length 26 [2020-12-22 05:17:30,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:30,172 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 214 transitions. [2020-12-22 05:17:30,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 05:17:30,173 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 214 transitions. [2020-12-22 05:17:30,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 05:17:30,174 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:30,174 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:30,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:30,384 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:30,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:30,385 INFO L82 PathProgramCache]: Analyzing trace with hash -74821968, now seen corresponding path program 2 times [2020-12-22 05:17:30,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:30,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622521029] [2020-12-22 05:17:30,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:30,405 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:30,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2073102606] [2020-12-22 05:17:30,405 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 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 05:17:30,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:17:30,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:17:30,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 05:17:30,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:30,518 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:17:30,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622521029] [2020-12-22 05:17:30,518 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:30,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073102606] [2020-12-22 05:17:30,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:17:30,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:17:30,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897208144] [2020-12-22 05:17:30,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:17:30,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:30,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:17:30,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:17:30,520 INFO L87 Difference]: Start difference. First operand 175 states and 214 transitions. Second operand 5 states. [2020-12-22 05:17:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:30,622 INFO L93 Difference]: Finished difference Result 249 states and 298 transitions. [2020-12-22 05:17:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:17:30,623 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-12-22 05:17:30,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:30,624 INFO L225 Difference]: With dead ends: 249 [2020-12-22 05:17:30,624 INFO L226 Difference]: Without dead ends: 167 [2020-12-22 05:17:30,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:17:30,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-12-22 05:17:30,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 93. [2020-12-22 05:17:30,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-22 05:17:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2020-12-22 05:17:30,640 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 27 [2020-12-22 05:17:30,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:30,640 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2020-12-22 05:17:30,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:17:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2020-12-22 05:17:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 05:17:30,641 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:30,641 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:30,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:30,857 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:30,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:30,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1112899551, now seen corresponding path program 1 times [2020-12-22 05:17:30,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:30,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359694118] [2020-12-22 05:17:30,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:30,870 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:30,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661795319] [2020-12-22 05:17:30,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 05:17:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:30,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 55 conjunts are in the unsatisfiable core [2020-12-22 05:17:30,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:17:31,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359694118] [2020-12-22 05:17:31,232 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:31,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661795319] [2020-12-22 05:17:31,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:31,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-12-22 05:17:31,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523250009] [2020-12-22 05:17:31,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 05:17:31,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:31,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 05:17:31,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:17:31,234 INFO L87 Difference]: Start difference. First operand 93 states and 106 transitions. Second operand 12 states. [2020-12-22 05:17:31,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:31,980 INFO L93 Difference]: Finished difference Result 233 states and 270 transitions. [2020-12-22 05:17:31,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-22 05:17:31,980 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2020-12-22 05:17:31,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:31,981 INFO L225 Difference]: With dead ends: 233 [2020-12-22 05:17:31,982 INFO L226 Difference]: Without dead ends: 174 [2020-12-22 05:17:31,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2020-12-22 05:17:31,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-12-22 05:17:32,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 110. [2020-12-22 05:17:32,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-12-22 05:17:32,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2020-12-22 05:17:32,005 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 32 [2020-12-22 05:17:32,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:32,005 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2020-12-22 05:17:32,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 05:17:32,005 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2020-12-22 05:17:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 05:17:32,008 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:32,008 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:32,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-22 05:17:32,222 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:32,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:32,224 INFO L82 PathProgramCache]: Analyzing trace with hash -986732336, now seen corresponding path program 1 times [2020-12-22 05:17:32,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:32,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890006092] [2020-12-22 05:17:32,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:32,236 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:32,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304962163] [2020-12-22 05:17:32,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 05:17:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:32,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 27 conjunts are in the unsatisfiable core [2020-12-22 05:17:32,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:32,521 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 05:17:32,524 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 05:17:32,527 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 05:17:32,548 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:17:32,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890006092] [2020-12-22 05:17:32,549 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:32,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304962163] [2020-12-22 05:17:32,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:32,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-12-22 05:17:32,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26826508] [2020-12-22 05:17:32,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 05:17:32,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:32,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 05:17:32,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:17:32,551 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand 11 states. [2020-12-22 05:17:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:33,286 INFO L93 Difference]: Finished difference Result 222 states and 256 transitions. [2020-12-22 05:17:33,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 05:17:33,287 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-12-22 05:17:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:33,288 INFO L225 Difference]: With dead ends: 222 [2020-12-22 05:17:33,288 INFO L226 Difference]: Without dead ends: 156 [2020-12-22 05:17:33,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2020-12-22 05:17:33,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-22 05:17:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 137. [2020-12-22 05:17:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-12-22 05:17:33,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 155 transitions. [2020-12-22 05:17:33,318 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 155 transitions. Word has length 32 [2020-12-22 05:17:33,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:33,319 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 155 transitions. [2020-12-22 05:17:33,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 05:17:33,319 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 155 transitions. [2020-12-22 05:17:33,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 05:17:33,320 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:33,320 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:33,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 05:17:33,536 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:33,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:33,537 INFO L82 PathProgramCache]: Analyzing trace with hash -315127458, now seen corresponding path program 2 times [2020-12-22 05:17:33,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:33,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450211579] [2020-12-22 05:17:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:33,553 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:33,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1715609700] [2020-12-22 05:17:33,557 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 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 05:17:33,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:17:33,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:17:33,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 05:17:33,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:17:33,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450211579] [2020-12-22 05:17:33,728 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:33,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715609700] [2020-12-22 05:17:33,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:33,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-12-22 05:17:33,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040511973] [2020-12-22 05:17:33,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:17:33,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:33,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:17:33,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:17:33,730 INFO L87 Difference]: Start difference. First operand 137 states and 155 transitions. Second operand 8 states. [2020-12-22 05:17:34,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:34,167 INFO L93 Difference]: Finished difference Result 317 states and 360 transitions. [2020-12-22 05:17:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 05:17:34,167 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2020-12-22 05:17:34,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:34,169 INFO L225 Difference]: With dead ends: 317 [2020-12-22 05:17:34,169 INFO L226 Difference]: Without dead ends: 313 [2020-12-22 05:17:34,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-12-22 05:17:34,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-12-22 05:17:34,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 165. [2020-12-22 05:17:34,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-12-22 05:17:34,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 192 transitions. [2020-12-22 05:17:34,204 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 192 transitions. Word has length 37 [2020-12-22 05:17:34,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:34,204 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 192 transitions. [2020-12-22 05:17:34,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:17:34,204 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 192 transitions. [2020-12-22 05:17:34,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 05:17:34,205 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:34,205 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:34,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-22 05:17:34,419 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:34,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:34,420 INFO L82 PathProgramCache]: Analyzing trace with hash -188960243, now seen corresponding path program 1 times [2020-12-22 05:17:34,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:34,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424899584] [2020-12-22 05:17:34,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:34,444 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:34,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051581736] [2020-12-22 05:17:34,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 05:17:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:34,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-22 05:17:34,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:34,812 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 05:17:34,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424899584] [2020-12-22 05:17:34,813 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:34,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051581736] [2020-12-22 05:17:34,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:34,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-12-22 05:17:34,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182980779] [2020-12-22 05:17:34,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-22 05:17:34,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:34,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-22 05:17:34,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-12-22 05:17:34,815 INFO L87 Difference]: Start difference. First operand 165 states and 192 transitions. Second operand 15 states. [2020-12-22 05:17:35,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:35,944 INFO L93 Difference]: Finished difference Result 245 states and 281 transitions. [2020-12-22 05:17:35,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 05:17:35,945 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 37 [2020-12-22 05:17:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:35,947 INFO L225 Difference]: With dead ends: 245 [2020-12-22 05:17:35,947 INFO L226 Difference]: Without dead ends: 243 [2020-12-22 05:17:35,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=209, Invalid=847, Unknown=0, NotChecked=0, Total=1056 [2020-12-22 05:17:35,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-12-22 05:17:35,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2020-12-22 05:17:35,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-12-22 05:17:35,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 240 transitions. [2020-12-22 05:17:35,994 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 240 transitions. Word has length 37 [2020-12-22 05:17:35,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:35,994 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 240 transitions. [2020-12-22 05:17:35,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-22 05:17:35,994 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 240 transitions. [2020-12-22 05:17:35,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 05:17:35,995 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:35,995 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:36,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:36,209 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:36,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:36,210 INFO L82 PathProgramCache]: Analyzing trace with hash 913672398, now seen corresponding path program 1 times [2020-12-22 05:17:36,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:36,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209514018] [2020-12-22 05:17:36,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:36,222 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:36,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804110076] [2020-12-22 05:17:36,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 05:17:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:36,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 05:17:36,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:36,363 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 05:17:36,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209514018] [2020-12-22 05:17:36,364 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:36,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804110076] [2020-12-22 05:17:36,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:17:36,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:17:36,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723295709] [2020-12-22 05:17:36,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:17:36,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:36,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:17:36,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:17:36,366 INFO L87 Difference]: Start difference. First operand 205 states and 240 transitions. Second operand 5 states. [2020-12-22 05:17:36,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:36,473 INFO L93 Difference]: Finished difference Result 348 states and 412 transitions. [2020-12-22 05:17:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 05:17:36,474 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-12-22 05:17:36,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:36,475 INFO L225 Difference]: With dead ends: 348 [2020-12-22 05:17:36,476 INFO L226 Difference]: Without dead ends: 226 [2020-12-22 05:17:36,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:17:36,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-12-22 05:17:36,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 204. [2020-12-22 05:17:36,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-12-22 05:17:36,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 238 transitions. [2020-12-22 05:17:36,521 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 238 transitions. Word has length 38 [2020-12-22 05:17:36,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:36,522 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 238 transitions. [2020-12-22 05:17:36,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:17:36,522 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 238 transitions. [2020-12-22 05:17:36,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 05:17:36,522 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:36,523 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:36,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-22 05:17:36,736 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:36,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:36,737 INFO L82 PathProgramCache]: Analyzing trace with hash 820532868, now seen corresponding path program 2 times [2020-12-22 05:17:36,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:36,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781949717] [2020-12-22 05:17:36,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:36,747 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:36,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824181203] [2020-12-22 05:17:36,747 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 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 05:17:36,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 05:17:36,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:17:36,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 05:17:36,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:36,856 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 05:17:36,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781949717] [2020-12-22 05:17:36,857 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:36,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824181203] [2020-12-22 05:17:36,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:17:36,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:17:36,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915430528] [2020-12-22 05:17:36,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:17:36,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:36,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:17:36,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:17:36,859 INFO L87 Difference]: Start difference. First operand 204 states and 238 transitions. Second operand 5 states. [2020-12-22 05:17:36,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:36,994 INFO L93 Difference]: Finished difference Result 237 states and 275 transitions. [2020-12-22 05:17:36,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:17:36,995 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-12-22 05:17:36,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:36,996 INFO L225 Difference]: With dead ends: 237 [2020-12-22 05:17:36,996 INFO L226 Difference]: Without dead ends: 235 [2020-12-22 05:17:36,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 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 05:17:36,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-12-22 05:17:37,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 222. [2020-12-22 05:17:37,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-12-22 05:17:37,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 260 transitions. [2020-12-22 05:17:37,043 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 260 transitions. Word has length 38 [2020-12-22 05:17:37,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:37,043 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 260 transitions. [2020-12-22 05:17:37,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:17:37,043 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 260 transitions. [2020-12-22 05:17:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 05:17:37,044 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:37,044 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:37,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-22 05:17:37,258 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:37,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:37,259 INFO L82 PathProgramCache]: Analyzing trace with hash 2091903451, now seen corresponding path program 1 times [2020-12-22 05:17:37,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:37,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392197056] [2020-12-22 05:17:37,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:37,271 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:37,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810494554] [2020-12-22 05:17:37,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 05:17:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:37,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-22 05:17:37,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:37,440 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 05:17:37,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392197056] [2020-12-22 05:17:37,441 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:37,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810494554] [2020-12-22 05:17:37,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:17:37,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 05:17:37,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835177536] [2020-12-22 05:17:37,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 05:17:37,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:37,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 05:17:37,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:17:37,443 INFO L87 Difference]: Start difference. First operand 222 states and 260 transitions. Second operand 9 states. [2020-12-22 05:17:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:37,769 INFO L93 Difference]: Finished difference Result 300 states and 345 transitions. [2020-12-22 05:17:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 05:17:37,769 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2020-12-22 05:17:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:37,771 INFO L225 Difference]: With dead ends: 300 [2020-12-22 05:17:37,771 INFO L226 Difference]: Without dead ends: 235 [2020-12-22 05:17:37,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-12-22 05:17:37,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-12-22 05:17:37,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 216. [2020-12-22 05:17:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-12-22 05:17:37,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 251 transitions. [2020-12-22 05:17:37,823 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 251 transitions. Word has length 39 [2020-12-22 05:17:37,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:37,823 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 251 transitions. [2020-12-22 05:17:37,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 05:17:37,824 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 251 transitions. [2020-12-22 05:17:37,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 05:17:37,824 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:37,824 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:38,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-22 05:17:38,035 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:38,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:38,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1404711062, now seen corresponding path program 1 times [2020-12-22 05:17:38,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:38,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802145071] [2020-12-22 05:17:38,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:38,045 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:38,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072482252] [2020-12-22 05:17:38,046 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 05:17:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:38,107 WARN L261 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 90 conjunts are in the unsatisfiable core [2020-12-22 05:17:38,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:38,977 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:17:38,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802145071] [2020-12-22 05:17:38,977 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:38,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072482252] [2020-12-22 05:17:38,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:38,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-12-22 05:17:38,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519831516] [2020-12-22 05:17:38,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-22 05:17:38,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:38,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-22 05:17:38,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2020-12-22 05:17:38,981 INFO L87 Difference]: Start difference. First operand 216 states and 251 transitions. Second operand 18 states. [2020-12-22 05:17:39,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:39,964 INFO L93 Difference]: Finished difference Result 312 states and 363 transitions. [2020-12-22 05:17:39,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 05:17:39,967 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 41 [2020-12-22 05:17:39,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:39,969 INFO L225 Difference]: With dead ends: 312 [2020-12-22 05:17:39,969 INFO L226 Difference]: Without dead ends: 248 [2020-12-22 05:17:39,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2020-12-22 05:17:39,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-12-22 05:17:40,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 237. [2020-12-22 05:17:40,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-12-22 05:17:40,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 273 transitions. [2020-12-22 05:17:40,016 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 273 transitions. Word has length 41 [2020-12-22 05:17:40,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:40,017 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 273 transitions. [2020-12-22 05:17:40,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-22 05:17:40,017 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 273 transitions. [2020-12-22 05:17:40,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 05:17:40,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:40,018 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:40,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:40,232 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:40,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:40,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1976752845, now seen corresponding path program 2 times [2020-12-22 05:17:40,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:40,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336666474] [2020-12-22 05:17:40,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:40,242 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:40,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745036462] [2020-12-22 05:17:40,243 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 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 05:17:40,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:17:40,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:17:40,324 WARN L261 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 103 conjunts are in the unsatisfiable core [2020-12-22 05:17:40,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:41,334 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 05:17:41,337 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 05:17:41,379 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 05:17:41,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336666474] [2020-12-22 05:17:41,380 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:41,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745036462] [2020-12-22 05:17:41,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:41,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-12-22 05:17:41,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971206940] [2020-12-22 05:17:41,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-12-22 05:17:41,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:41,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-12-22 05:17:41,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2020-12-22 05:17:41,382 INFO L87 Difference]: Start difference. First operand 237 states and 273 transitions. Second operand 21 states. [2020-12-22 05:17:42,125 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-12-22 05:17:43,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:43,225 INFO L93 Difference]: Finished difference Result 351 states and 401 transitions. [2020-12-22 05:17:43,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-12-22 05:17:43,226 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 46 [2020-12-22 05:17:43,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:43,228 INFO L225 Difference]: With dead ends: 351 [2020-12-22 05:17:43,228 INFO L226 Difference]: Without dead ends: 341 [2020-12-22 05:17:43,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=186, Invalid=1146, Unknown=0, NotChecked=0, Total=1332 [2020-12-22 05:17:43,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-12-22 05:17:43,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 258. [2020-12-22 05:17:43,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-12-22 05:17:43,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 297 transitions. [2020-12-22 05:17:43,292 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 297 transitions. Word has length 46 [2020-12-22 05:17:43,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:43,292 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 297 transitions. [2020-12-22 05:17:43,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-12-22 05:17:43,293 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 297 transitions. [2020-12-22 05:17:43,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 05:17:43,293 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:43,293 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:43,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:43,507 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:43,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:43,507 INFO L82 PathProgramCache]: Analyzing trace with hash 2102920060, now seen corresponding path program 2 times [2020-12-22 05:17:43,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:43,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758262462] [2020-12-22 05:17:43,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:43,517 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:43,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618032339] [2020-12-22 05:17:43,518 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 05:17:43,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:17:43,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:17:43,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-22 05:17:43,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:43,808 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:17:43,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758262462] [2020-12-22 05:17:43,809 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:43,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618032339] [2020-12-22 05:17:43,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:43,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-12-22 05:17:43,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860801469] [2020-12-22 05:17:43,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 05:17:43,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:43,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 05:17:43,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-12-22 05:17:43,811 INFO L87 Difference]: Start difference. First operand 258 states and 297 transitions. Second operand 12 states. [2020-12-22 05:17:44,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:44,488 INFO L93 Difference]: Finished difference Result 465 states and 537 transitions. [2020-12-22 05:17:44,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 05:17:44,489 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-12-22 05:17:44,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:44,491 INFO L225 Difference]: With dead ends: 465 [2020-12-22 05:17:44,491 INFO L226 Difference]: Without dead ends: 368 [2020-12-22 05:17:44,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-12-22 05:17:44,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-12-22 05:17:44,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 203. [2020-12-22 05:17:44,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-12-22 05:17:44,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 231 transitions. [2020-12-22 05:17:44,548 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 231 transitions. Word has length 46 [2020-12-22 05:17:44,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:44,549 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 231 transitions. [2020-12-22 05:17:44,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 05:17:44,549 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 231 transitions. [2020-12-22 05:17:44,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 05:17:44,549 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:44,550 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:44,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-12-22 05:17:44,765 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:44,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:44,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1437779966, now seen corresponding path program 1 times [2020-12-22 05:17:44,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:44,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963405668] [2020-12-22 05:17:44,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:44,775 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:44,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827115993] [2020-12-22 05:17:44,775 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 05:17:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:17:44,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 05:17:44,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:45,010 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 05:17:45,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963405668] [2020-12-22 05:17:45,011 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:45,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827115993] [2020-12-22 05:17:45,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:45,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-12-22 05:17:45,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579479533] [2020-12-22 05:17:45,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 05:17:45,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:45,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 05:17:45,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-22 05:17:45,014 INFO L87 Difference]: Start difference. First operand 203 states and 231 transitions. Second operand 10 states. [2020-12-22 05:17:45,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:45,380 INFO L93 Difference]: Finished difference Result 345 states and 398 transitions. [2020-12-22 05:17:45,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 05:17:45,383 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2020-12-22 05:17:45,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:45,384 INFO L225 Difference]: With dead ends: 345 [2020-12-22 05:17:45,384 INFO L226 Difference]: Without dead ends: 179 [2020-12-22 05:17:45,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2020-12-22 05:17:45,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-12-22 05:17:45,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-12-22 05:17:45,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-12-22 05:17:45,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 205 transitions. [2020-12-22 05:17:45,429 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 205 transitions. Word has length 49 [2020-12-22 05:17:45,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:45,429 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 205 transitions. [2020-12-22 05:17:45,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 05:17:45,429 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 205 transitions. [2020-12-22 05:17:45,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-22 05:17:45,430 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:45,430 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:45,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-22 05:17:45,640 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:45,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:45,640 INFO L82 PathProgramCache]: Analyzing trace with hash -692384328, now seen corresponding path program 3 times [2020-12-22 05:17:45,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:45,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735495595] [2020-12-22 05:17:45,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:45,650 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:45,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705380984] [2020-12-22 05:17:45,651 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 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 05:17:45,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-22 05:17:45,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:17:45,715 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 87 conjunts are in the unsatisfiable core [2020-12-22 05:17:45,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 05:17:46,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735495595] [2020-12-22 05:17:46,355 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:46,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705380984] [2020-12-22 05:17:46,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:46,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-12-22 05:17:46,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473673025] [2020-12-22 05:17:46,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 05:17:46,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:46,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 05:17:46,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-12-22 05:17:46,357 INFO L87 Difference]: Start difference. First operand 179 states and 205 transitions. Second operand 16 states. [2020-12-22 05:17:53,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:53,433 INFO L93 Difference]: Finished difference Result 247 states and 283 transitions. [2020-12-22 05:17:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 05:17:53,434 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 58 [2020-12-22 05:17:53,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:53,435 INFO L225 Difference]: With dead ends: 247 [2020-12-22 05:17:53,435 INFO L226 Difference]: Without dead ends: 237 [2020-12-22 05:17:53,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2020-12-22 05:17:53,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-12-22 05:17:53,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 173. [2020-12-22 05:17:53,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-12-22 05:17:53,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 197 transitions. [2020-12-22 05:17:53,476 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 197 transitions. Word has length 58 [2020-12-22 05:17:53,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:53,476 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 197 transitions. [2020-12-22 05:17:53,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 05:17:53,477 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 197 transitions. [2020-12-22 05:17:53,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 05:17:53,477 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:53,477 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:53,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:53,678 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:53,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:53,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1566045482, now seen corresponding path program 2 times [2020-12-22 05:17:53,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:53,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290631807] [2020-12-22 05:17:53,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:53,687 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:53,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027153766] [2020-12-22 05:17:53,687 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 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 05:17:53,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 05:17:53,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:17:53,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 27 conjunts are in the unsatisfiable core [2020-12-22 05:17:53,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:54,052 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 48 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 05:17:54,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290631807] [2020-12-22 05:17:54,053 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:54,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027153766] [2020-12-22 05:17:54,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:54,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-12-22 05:17:54,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164778832] [2020-12-22 05:17:54,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 05:17:54,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:54,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 05:17:54,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-12-22 05:17:54,056 INFO L87 Difference]: Start difference. First operand 173 states and 197 transitions. Second operand 13 states. [2020-12-22 05:17:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:54,722 INFO L93 Difference]: Finished difference Result 386 states and 441 transitions. [2020-12-22 05:17:54,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-22 05:17:54,723 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 63 [2020-12-22 05:17:54,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:54,724 INFO L225 Difference]: With dead ends: 386 [2020-12-22 05:17:54,724 INFO L226 Difference]: Without dead ends: 283 [2020-12-22 05:17:54,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2020-12-22 05:17:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-12-22 05:17:54,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 200. [2020-12-22 05:17:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-12-22 05:17:54,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 231 transitions. [2020-12-22 05:17:54,775 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 231 transitions. Word has length 63 [2020-12-22 05:17:54,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:54,775 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 231 transitions. [2020-12-22 05:17:54,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 05:17:54,775 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 231 transitions. [2020-12-22 05:17:54,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 05:17:54,776 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:54,776 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:54,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-22 05:17:54,990 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:54,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:54,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1339399091, now seen corresponding path program 4 times [2020-12-22 05:17:54,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:54,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87803770] [2020-12-22 05:17:54,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:55,000 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:55,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775634792] [2020-12-22 05:17:55,000 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 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 05:17:55,065 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 05:17:55,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:17:55,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 05:17:55,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:55,198 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 43 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 05:17:55,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87803770] [2020-12-22 05:17:55,198 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:55,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775634792] [2020-12-22 05:17:55,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:55,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-22 05:17:55,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346511158] [2020-12-22 05:17:55,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 05:17:55,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:55,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 05:17:55,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:17:55,200 INFO L87 Difference]: Start difference. First operand 200 states and 231 transitions. Second operand 7 states. [2020-12-22 05:17:55,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:55,425 INFO L93 Difference]: Finished difference Result 404 states and 470 transitions. [2020-12-22 05:17:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 05:17:55,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-12-22 05:17:55,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:55,428 INFO L225 Difference]: With dead ends: 404 [2020-12-22 05:17:55,428 INFO L226 Difference]: Without dead ends: 250 [2020-12-22 05:17:55,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-12-22 05:17:55,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-12-22 05:17:55,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 219. [2020-12-22 05:17:55,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-12-22 05:17:55,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 260 transitions. [2020-12-22 05:17:55,483 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 260 transitions. Word has length 67 [2020-12-22 05:17:55,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:55,483 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 260 transitions. [2020-12-22 05:17:55,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 05:17:55,483 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 260 transitions. [2020-12-22 05:17:55,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 05:17:55,484 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:55,484 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:55,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 05:17:55,698 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:55,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:55,698 INFO L82 PathProgramCache]: Analyzing trace with hash 517253963, now seen corresponding path program 3 times [2020-12-22 05:17:55,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:55,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921559506] [2020-12-22 05:17:55,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:55,708 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:55,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1665960763] [2020-12-22 05:17:55,708 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 05:17:55,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 05:17:55,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:17:55,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-22 05:17:55,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:55,883 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 51 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-12-22 05:17:55,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921559506] [2020-12-22 05:17:55,883 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:55,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665960763] [2020-12-22 05:17:55,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:55,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-22 05:17:55,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258691788] [2020-12-22 05:17:55,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:17:55,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:55,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:17:55,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:17:55,885 INFO L87 Difference]: Start difference. First operand 219 states and 260 transitions. Second operand 6 states. [2020-12-22 05:17:56,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:56,068 INFO L93 Difference]: Finished difference Result 245 states and 280 transitions. [2020-12-22 05:17:56,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 05:17:56,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 75 [2020-12-22 05:17:56,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:56,070 INFO L225 Difference]: With dead ends: 245 [2020-12-22 05:17:56,070 INFO L226 Difference]: Without dead ends: 243 [2020-12-22 05:17:56,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:17:56,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-12-22 05:17:56,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 219. [2020-12-22 05:17:56,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-12-22 05:17:56,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 256 transitions. [2020-12-22 05:17:56,127 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 256 transitions. Word has length 75 [2020-12-22 05:17:56,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:56,127 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 256 transitions. [2020-12-22 05:17:56,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:17:56,127 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 256 transitions. [2020-12-22 05:17:56,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 05:17:56,128 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:17:56,128 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:17:56,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-22 05:17:56,339 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:17:56,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:17:56,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1315727183, now seen corresponding path program 5 times [2020-12-22 05:17:56,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:17:56,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514695195] [2020-12-22 05:17:56,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:17:56,348 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 05:17:56,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [548058901] [2020-12-22 05:17:56,348 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 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 05:17:56,449 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2020-12-22 05:17:56,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 05:17:56,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-22 05:17:56,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 05:17:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 95 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-12-22 05:17:56,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514695195] [2020-12-22 05:17:56,735 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 05:17:56,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548058901] [2020-12-22 05:17:56,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-22 05:17:56,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-12-22 05:17:56,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134525095] [2020-12-22 05:17:56,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 05:17:56,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:17:56,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 05:17:56,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-12-22 05:17:56,737 INFO L87 Difference]: Start difference. First operand 219 states and 256 transitions. Second operand 13 states. [2020-12-22 05:17:57,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:17:57,171 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2020-12-22 05:17:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 05:17:57,171 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 84 [2020-12-22 05:17:57,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:17:57,172 INFO L225 Difference]: With dead ends: 219 [2020-12-22 05:17:57,172 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 05:17:57,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2020-12-22 05:17:57,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 05:17:57,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 05:17:57,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 05:17:57,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 05:17:57,173 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2020-12-22 05:17:57,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:17:57,173 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 05:17:57,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 05:17:57,173 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 05:17:57,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 05:17:57,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-12-22 05:17:57,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 05:17:57,819 WARN L197 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 169 [2020-12-22 05:17:58,273 WARN L197 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 169 [2020-12-22 05:17:58,508 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 156 [2020-12-22 05:17:58,688 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 139 [2020-12-22 05:17:58,987 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 166 [2020-12-22 05:17:59,217 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 155 [2020-12-22 05:18:00,405 WARN L197 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 157 DAG size of output: 68 [2020-12-22 05:18:01,926 WARN L197 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 165 DAG size of output: 68 [2020-12-22 05:18:03,020 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 149 DAG size of output: 58 [2020-12-22 05:18:03,956 WARN L197 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 78 [2020-12-22 05:18:04,923 WARN L197 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 88 [2020-12-22 05:18:06,606 WARN L197 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 160 DAG size of output: 66 [2020-12-22 05:18:07,777 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2020-12-22 05:18:07,784 INFO L185 CegarLoopUtils]: At program point L35-2(lines 35 73) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (.cse1 (= ULTIMATE.start_main_~r~0 1)) (.cse8 (<= ULTIMATE.start_main_~x~0 2)) (.cse2 (= ULTIMATE.start_main_~q~0 1)) (.cse10 (<= 1 ULTIMATE.start_main_~y~0)) (.cse3 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0)) (.cse9 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse5 (= ULTIMATE.start_main_~p~0 0)) (.cse11 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0)) (.cse12 (= ULTIMATE.start_main_~r~0 0)) (.cse13 (= ULTIMATE.start_main_~p~0 1)) (.cse14 (<= 1 ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse7 (<= 1 ULTIMATE.start_main_~b~0)) (.cse6 (<= ULTIMATE.start_main_~y~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 (< ULTIMATE.start_main_~c~0 2) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~s~0 0) .cse4 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0) .cse5 .cse6 .cse7) (let ((.cse15 (div (+ (* ULTIMATE.start_main_~c~0 (- 1)) 2) 2))) (and (or (and .cse0 (= (+ ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~r~0) 0) .cse1 .cse3 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) .cse8 .cse9 (= (+ ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0) 1) .cse4 .cse5) (and .cse10 .cse3 .cse8 .cse11 .cse12 .cse9 (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~y~0)) (= ULTIMATE.start_main_~s~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0) 1)) .cse13 .cse14 .cse4)) (< 0 (+ (div (+ (* ULTIMATE.start_main_~b~0 (- 1)) 2) 2) ULTIMATE.start_main_~b~0)) (< ULTIMATE.start_main_~c~0 .cse15) (< 0 (+ ULTIMATE.start_main_~c~0 .cse15)) .cse6)) (and .cse0 .cse1 .cse8 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~y~0 2))) .cse14 (= (+ ULTIMATE.start_main_~s~0 2) 0) .cse2 .cse10 .cse3 .cse9 .cse4 .cse5 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)) (and .cse11 (<= ULTIMATE.start_main_~a~0 2) .cse12 .cse13 (= ULTIMATE.start_main_~s~0 1) .cse14 (= ULTIMATE.start_main_~q~0 0) .cse4 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse7 .cse6))) [2020-12-22 05:18:07,784 INFO L189 CegarLoopUtils]: For program point L35-3(lines 35 73) no Hoare annotation was computed. [2020-12-22 05:18:07,784 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:18:07,784 INFO L189 CegarLoopUtils]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:18:07,785 INFO L185 CegarLoopUtils]: At program point L11-2(lines 10 16) the Hoare annotation is: (let ((.cse21 (= ULTIMATE.start_main_~r~0 0)) (.cse9 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0)) (.cse22 (= ULTIMATE.start_main_~p~0 1)) (.cse23 (= ULTIMATE.start_main_~s~0 1)) (.cse24 (= ULTIMATE.start_main_~q~0 0)) (.cse25 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse15 (= ULTIMATE.start_main_~r~0 1)) (.cse16 (= ULTIMATE.start_main_~q~0 1)) (.cse17 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0)) (.cse18 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0)) (.cse13 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse19 (= ULTIMATE.start_main_~s~0 0)) (.cse20 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (.cse7 (= ULTIMATE.start_main_~p~0 0))) (let ((.cse0 (= ULTIMATE.start_main_~d~0 2)) (.cse1 (div (* ULTIMATE.start_main_~v~0 (- 1)) (- 2))) (.cse6 (let ((.cse26 (<= ULTIMATE.start_main_~x~0 2))) (or (and .cse26 .cse18 .cse21 .cse13 .cse9 .cse22 .cse23 .cse24 .cse25) (and (<= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0) .cse15 .cse16 .cse17 .cse26 .cse18 .cse13 .cse19 .cse20 .cse7)))) (.cse8 (= ULTIMATE.start_main_~k~0 0)) (.cse11 (let ((.cse14 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0))) (or (and .cse14 .cse15 .cse16 .cse17 .cse18 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse19 .cse20 .cse7) (and .cse14 .cse18 .cse21 .cse13 .cse9 .cse22 .cse23 .cse24 .cse25)))) (.cse2 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~y~0)) (.cse3 (<= ULTIMATE.start_main_~c~0 2)) (.cse4 (= (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0)) ULTIMATE.start_main_~y~0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse12 (= ULTIMATE.start_main_~d~0 1)) (.cse10 (<= 1 ULTIMATE.start_main_~b~0))) (or (and .cse0 (<= 1 (div ULTIMATE.start_main_~v~0 2)) (<= .cse1 ULTIMATE.start_main_~b~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse0 (<= ULTIMATE.start_main_~b~0 .cse1) .cse9 .cse5 (= (mod ULTIMATE.start_main_~v~0 (- 2)) 0) (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse6 .cse10) (and .cse11 .cse8 .cse9 .cse3 .cse5 .cse12 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) .cse10) (and .cse11 .cse13 .cse2 .cse3 .cse4 .cse5 .cse12 .cse10)))) [2020-12-22 05:18:07,785 INFO L189 CegarLoopUtils]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:18:07,785 INFO L185 CegarLoopUtils]: At program point L11-5(lines 10 16) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~k~0 0)) (.cse10 (<= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (.cse11 (= ULTIMATE.start_main_~r~0 1)) (.cse12 (= ULTIMATE.start_main_~q~0 1)) (.cse13 (= ULTIMATE.start_main_~s~0 0)) (.cse14 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (.cse15 (= ULTIMATE.start_main_~p~0 0)) (.cse1 (<= ULTIMATE.start_main_~x~0 2)) (.cse2 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0)) (.cse3 (= ULTIMATE.start_main_~r~0 0)) (.cse4 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse5 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0)) (.cse6 (= ULTIMATE.start_main_~p~0 1)) (.cse7 (= ULTIMATE.start_main_~s~0 1)) (.cse8 (= ULTIMATE.start_main_~q~0 0)) (.cse9 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse17 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse16 (<= ULTIMATE.start_main_~y~0 2)) (.cse18 (<= 1 ULTIMATE.start_main_~b~0))) (or (and .cse0 (= ULTIMATE.start_main_~d~0 2) (<= ULTIMATE.start_main_~b~0 (div (* ULTIMATE.start_main_~v~0 (- 1)) (- 2))) (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse11 .cse12 .cse2 .cse4 .cse13 .cse14 .cse15 .cse16)) .cse17 (= (mod ULTIMATE.start_main_~v~0 (- 2)) 0) (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse18) (and .cse0 (let ((.cse19 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0))) (or (and .cse10 .cse19 .cse11 .cse12 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0) .cse2 .cse4 .cse13 .cse14 .cse15) (and .cse19 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) .cse17 (= ULTIMATE.start_main_~d~0 1) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) .cse16 .cse18))) [2020-12-22 05:18:07,785 INFO L189 CegarLoopUtils]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:18:07,786 INFO L189 CegarLoopUtils]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-22 05:18:07,787 INFO L185 CegarLoopUtils]: At program point L11-8(lines 10 16) the Hoare annotation is: (let ((.cse13 (<= ULTIMATE.start_main_~x~0 2)) (.cse16 (= ULTIMATE.start_main_~p~0 1)) (.cse19 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse14 (= ULTIMATE.start_main_~r~0 0)) (.cse15 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0)) (.cse17 (= ULTIMATE.start_main_~s~0 1)) (.cse18 (= ULTIMATE.start_main_~q~0 0)) (.cse21 (<= 1 ULTIMATE.start_main_~b~0)) (.cse0 (<= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (.cse2 (= ULTIMATE.start_main_~r~0 1)) (.cse22 (= ULTIMATE.start_main_~d~0 2)) (.cse3 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0)) (.cse4 (= ULTIMATE.start_main_~s~0 0)) (.cse6 (= ULTIMATE.start_main_~q~0 1)) (.cse7 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0)) (.cse8 (= ULTIMATE.start_main_~k~0 0)) (.cse9 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse23 (div (* ULTIMATE.start_main_~v~0 (- 1)) (- 2))) (.cse20 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse10 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (.cse11 (= ULTIMATE.start_main_~p~0 0)) (.cse12 (<= ULTIMATE.start_main_~y~0 2))) (or (and (let ((.cse1 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0)) (.cse5 (= ULTIMATE.start_main_~d~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse1 .cse13 .cse8 .cse3 .cse9 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse5))) .cse20 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) .cse21) (and .cse13 .cse22 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse16 (= (mod ULTIMATE.start_main_~v~0 (- 2)) 0) .cse19 .cse8 (<= ULTIMATE.start_main_~b~0 .cse23) (<= (* 2 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~c~0) .cse14 .cse9 .cse15 .cse17 (<= (* 2 .cse23) 2) .cse18 .cse20 .cse21) (and .cse0 .cse2 .cse22 (<= 1 (div ULTIMATE.start_main_~v~0 2)) .cse3 .cse4 .cse6 .cse7 .cse8 .cse9 (<= .cse23 ULTIMATE.start_main_~b~0) .cse20 .cse10 .cse11 .cse12))) [2020-12-22 05:18:07,787 INFO L189 CegarLoopUtils]: For program point L11-9(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:18:07,787 INFO L185 CegarLoopUtils]: At program point L11-11(lines 55 56) the Hoare annotation is: (let ((.cse12 (<= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (.cse13 (= ULTIMATE.start_main_~r~0 1)) (.cse1 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0)) (.cse15 (= ULTIMATE.start_main_~s~0 0)) (.cse4 (= ULTIMATE.start_main_~d~0 1)) (.cse16 (= ULTIMATE.start_main_~q~0 1)) (.cse17 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0)) (.cse19 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (.cse20 (= ULTIMATE.start_main_~p~0 0)) (.cse21 (<= ULTIMATE.start_main_~y~0 2)) (.cse14 (= ULTIMATE.start_main_~d~0 2)) (.cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0)) (.cse2 (= ULTIMATE.start_main_~p~0 1)) (.cse3 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse5 (= ULTIMATE.start_main_~k~0 0)) (.cse18 (div (* ULTIMATE.start_main_~v~0 (- 1)) (- 2))) (.cse6 (= ULTIMATE.start_main_~r~0 0)) (.cse7 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse8 (= ULTIMATE.start_main_~s~0 1)) (.cse9 (= ULTIMATE.start_main_~q~0 0)) (.cse10 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse11 (<= 1 ULTIMATE.start_main_~b~0))) (or (and (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~b~0) (<= ULTIMATE.start_main_~x~0 2) .cse0 .cse1 .cse2 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) .cse3 .cse4 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse12 .cse13 .cse14 (<= 1 (div ULTIMATE.start_main_~v~0 2)) .cse1 .cse15 .cse16 .cse17 .cse5 .cse7 (<= .cse18 ULTIMATE.start_main_~b~0) .cse10 .cse19 .cse20 .cse21) (and .cse12 .cse13 .cse1 .cse15 .cse4 (< ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse16 .cse17 .cse5 .cse7 (<= 1 ULTIMATE.start_main_~v~0) .cse10 .cse19 .cse20 .cse21 .cse11) (and .cse14 .cse0 .cse2 (<= ULTIMATE.start_main_~c~0 2) (= (mod ULTIMATE.start_main_~v~0 (- 2)) 0) (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse3 .cse5 (<= ULTIMATE.start_main_~b~0 .cse18) .cse6 .cse7 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) .cse8 .cse9 .cse10 .cse11))) [2020-12-22 05:18:07,788 INFO L189 CegarLoopUtils]: For program point L11-12(lines 11 14) no Hoare annotation was computed. [2020-12-22 05:18:07,788 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:18:07,788 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 05:18:07,788 INFO L192 CegarLoopUtils]: At program point L11-14(lines 10 16) the Hoare annotation is: true [2020-12-22 05:18:07,788 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 05:18:07,788 INFO L189 CegarLoopUtils]: For program point L12(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:18:07,788 INFO L189 CegarLoopUtils]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:18:07,788 INFO L189 CegarLoopUtils]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:18:07,788 INFO L189 CegarLoopUtils]: For program point L12-3(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:18:07,788 INFO L189 CegarLoopUtils]: For program point L12-4(lines 12 13) no Hoare annotation was computed. [2020-12-22 05:18:07,788 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:18:07,789 INFO L189 CegarLoopUtils]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:18:07,789 INFO L189 CegarLoopUtils]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:18:07,789 INFO L189 CegarLoopUtils]: For program point L7-2(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:18:07,789 INFO L189 CegarLoopUtils]: For program point L7-3(lines 7 9) no Hoare annotation was computed. [2020-12-22 05:18:07,789 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 05:18:07,789 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:18:07,789 INFO L185 CegarLoopUtils]: At program point L49-2(lines 49 59) the Hoare annotation is: (let ((.cse5 (= ULTIMATE.start_main_~r~0 0)) (.cse7 (= ULTIMATE.start_main_~p~0 1)) (.cse8 (= ULTIMATE.start_main_~s~0 1)) (.cse9 (= ULTIMATE.start_main_~q~0 0)) (.cse10 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse11 (<= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (.cse12 (= ULTIMATE.start_main_~r~0 1)) (.cse13 (= ULTIMATE.start_main_~q~0 1)) (.cse14 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0)) (.cse3 (<= ULTIMATE.start_main_~x~0 2)) (.cse4 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0)) (.cse15 (= ULTIMATE.start_main_~s~0 0)) (.cse16 (= ULTIMATE.start_main_~p~0 0)) (.cse17 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0))) (let ((.cse0 (= ULTIMATE.start_main_~k~0 0)) (.cse6 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0)) (.cse18 (<= 1 ULTIMATE.start_main_~b~0)) (.cse19 (= ULTIMATE.start_main_~d~0 2)) (.cse21 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse20 (div (* ULTIMATE.start_main_~v~0 (- 1)) (- 2))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse22 (or (and .cse3 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse4 .cse5 .cse7 .cse8 .cse9 .cse10) (and .cse11 .cse12 .cse13 .cse14 .cse3 .cse4 .cse15 .cse16 .cse17)))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~d~0 1) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) (let ((.cse2 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0))) (or (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse11 .cse2 .cse12 .cse13 .cse14 .cse4 .cse15 .cse16 .cse17 (<= ULTIMATE.start_main_~y~0 2)))) .cse18) (and .cse0 .cse19 (<= ULTIMATE.start_main_~b~0 .cse20) .cse21 .cse6 .cse1 (= (mod ULTIMATE.start_main_~v~0 (- 2)) 0) (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse22 .cse18) (and .cse19 .cse21 (<= 1 (div ULTIMATE.start_main_~v~0 2)) (<= .cse20 ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~c~0 2) (= (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0)) ULTIMATE.start_main_~y~0) .cse1 .cse22 .cse16)))) [2020-12-22 05:18:07,790 INFO L189 CegarLoopUtils]: For program point L49-3(lines 49 59) no Hoare annotation was computed. [2020-12-22 05:18:07,790 INFO L189 CegarLoopUtils]: For program point L8(line 8) no Hoare annotation was computed. [2020-12-22 05:18:07,790 INFO L189 CegarLoopUtils]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-12-22 05:18:07,790 INFO L189 CegarLoopUtils]: For program point L8-4(line 8) no Hoare annotation was computed. [2020-12-22 05:18:07,790 INFO L189 CegarLoopUtils]: For program point L8-6(line 8) no Hoare annotation was computed. [2020-12-22 05:18:07,790 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 05:18:07,790 INFO L192 CegarLoopUtils]: At program point L75(lines 18 76) the Hoare annotation is: true [2020-12-22 05:18:07,790 INFO L185 CegarLoopUtils]: At program point L42-2(lines 42 62) the Hoare annotation is: (let ((.cse24 (= ULTIMATE.start_main_~r~0 1)) (.cse25 (= ULTIMATE.start_main_~q~0 1)) (.cse26 (= ULTIMATE.start_main_~s~0 0)) (.cse7 (= ULTIMATE.start_main_~p~0 0)) (.cse27 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (.cse21 (<= ULTIMATE.start_main_~x~0 2)) (.cse22 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0)) (.cse17 (= ULTIMATE.start_main_~r~0 0)) (.cse13 (= ULTIMATE.start_main_~p~0 1)) (.cse18 (= ULTIMATE.start_main_~s~0 1)) (.cse23 (<= 1 ULTIMATE.start_main_~x~0)) (.cse10 (= ULTIMATE.start_main_~q~0 0)) (.cse15 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse19 (<= ULTIMATE.start_main_~y~0 2))) (let ((.cse0 (= ULTIMATE.start_main_~k~0 2)) (.cse1 (= ULTIMATE.start_main_~d~0 2)) (.cse3 (div (* ULTIMATE.start_main_~v~0 (- 1)) (- 2))) (.cse5 (or (and (<= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0) .cse24 .cse25 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0) .cse26 .cse7 .cse27 .cse19) (and .cse21 .cse22 .cse17 .cse13 .cse18 .cse23 .cse10 .cse15 .cse19))) (.cse6 (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 2))) (.cse11 (* 2 ULTIMATE.start_main_~b~0)) (.cse8 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0)) (.cse9 (= ULTIMATE.start_main_~d~0 1)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse12 (< (* 2 ULTIMATE.start_main_~c~0) 2)) (.cse16 (= ULTIMATE.start_main_~k~0 0)) (.cse14 (<= ULTIMATE.start_main_~c~0 2)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse20 (<= 1 ULTIMATE.start_main_~b~0))) (or (and .cse0 .cse1 .cse2 (<= 1 (div ULTIMATE.start_main_~v~0 2)) (<= .cse3 ULTIMATE.start_main_~b~0) .cse4 .cse5 (= ULTIMATE.start_main_~y~0 .cse6) .cse7) (and .cse0 (or (and .cse8 .cse4 .cse9 .cse5) (and .cse1 (<= ULTIMATE.start_main_~b~0 .cse3) (<= (* 2 .cse3) 2) .cse4 (= (mod ULTIMATE.start_main_~v~0 (- 2)) 0) .cse5)) .cse2 (= ULTIMATE.start_main_~x~0 .cse6) .cse10 (<= .cse11 ULTIMATE.start_main_~x~0) .cse12) (and (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) .cse13 .cse14 .cse15 .cse16 .cse17 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) .cse18 (<= 1 ULTIMATE.start_main_~c~0) .cse10 .cse4 .cse19 .cse20) (and (= ULTIMATE.start_main_~k~0 1) .cse21 (<= 0 ULTIMATE.start_main_~c~0) (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~b~0) .cse22 .cse13 .cse23 (< ULTIMATE.start_main_~x~0 .cse11) .cse8 .cse15 .cse9 .cse17 .cse2 .cse18 .cse10 .cse4 .cse12 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0) .cse19) (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0) .cse24 .cse25 .cse16 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) .cse26 .cse14 (= (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0)) ULTIMATE.start_main_~y~0) .cse4 .cse27 .cse7 .cse20)))) [2020-12-22 05:18:07,791 INFO L189 CegarLoopUtils]: For program point L42-3(lines 42 62) no Hoare annotation was computed. [2020-12-22 05:18:07,791 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-22 05:18:07,791 INFO L189 CegarLoopUtils]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-12-22 05:18:07,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:18:07 BoogieIcfgContainer [2020-12-22 05:18:07,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 05:18:07,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 05:18:07,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 05:18:07,846 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 05:18:07,847 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:17:21" (3/4) ... [2020-12-22 05:18:07,850 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 05:18:07,864 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-22 05:18:07,865 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 05:18:07,865 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:18:07,865 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 05:18:07,952 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/egcd3-ll_valuebound2.c-witness.graphml [2020-12-22 05:18:07,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 05:18:07,954 INFO L168 Benchmark]: Toolchain (without parser) took 47363.62 ms. Allocated memory was 175.1 MB in the beginning and 370.1 MB in the end (delta: 195.0 MB). Free memory was 150.0 MB in the beginning and 158.9 MB in the end (delta: -9.0 MB). Peak memory consumption was 187.6 MB. Max. memory is 8.0 GB. [2020-12-22 05:18:07,955 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 175.1 MB. Free memory was 148.1 MB in the beginning and 148.0 MB in the end (delta: 88.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 05:18:07,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.12 ms. Allocated memory is still 175.1 MB. Free memory was 149.8 MB in the beginning and 139.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 05:18:07,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.38 ms. Allocated memory is still 175.1 MB. Free memory was 139.6 MB in the beginning and 138.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 05:18:07,956 INFO L168 Benchmark]: Boogie Preprocessor took 27.59 ms. Allocated memory is still 175.1 MB. Free memory was 138.0 MB in the beginning and 136.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 05:18:07,957 INFO L168 Benchmark]: RCFGBuilder took 481.80 ms. Allocated memory is still 175.1 MB. Free memory was 136.6 MB in the beginning and 154.8 MB in the end (delta: -18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 8.0 GB. [2020-12-22 05:18:07,957 INFO L168 Benchmark]: TraceAbstraction took 46309.77 ms. Allocated memory was 175.1 MB in the beginning and 370.1 MB in the end (delta: 195.0 MB). Free memory was 154.3 MB in the beginning and 163.7 MB in the end (delta: -9.4 MB). Peak memory consumption was 221.9 MB. Max. memory is 8.0 GB. [2020-12-22 05:18:07,958 INFO L168 Benchmark]: Witness Printer took 106.64 ms. Allocated memory is still 370.1 MB. Free memory was 163.7 MB in the beginning and 158.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-22 05:18:07,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 175.1 MB. Free memory was 148.1 MB in the beginning and 148.0 MB in the end (delta: 88.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 386.12 ms. Allocated memory is still 175.1 MB. Free memory was 149.8 MB in the beginning and 139.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 41.38 ms. Allocated memory is still 175.1 MB. Free memory was 139.6 MB in the beginning and 138.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.59 ms. Allocated memory is still 175.1 MB. Free memory was 138.0 MB in the beginning and 136.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 481.80 ms. Allocated memory is still 175.1 MB. Free memory was 136.6 MB in the beginning and 154.8 MB in the end (delta: -18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 46309.77 ms. Allocated memory was 175.1 MB in the beginning and 370.1 MB in the end (delta: 195.0 MB). Free memory was 154.3 MB in the beginning and 163.7 MB in the end (delta: -9.4 MB). Peak memory consumption was 221.9 MB. Max. memory is 8.0 GB. * Witness Printer took 106.64 ms. Allocated memory is still 370.1 MB. Free memory was 163.7 MB in the beginning and 158.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: ((((((k == 0 && cond == 1) && d == 1) && b <= c) && (((((((((b == v && x <= 2) && c == a) && r == 0) && c == x) && p == 1) && s == 1) && q == 0) && b == y) || (((((((((a <= y && b == v) && r == 1) && q == 1) && b < a) && c == a) && s == 0) && p == 0) && b == x) && y <= 2))) && 1 <= b) || (((((((((k == 0 && d == 2) && b <= v * -1 / -2) && 1 == cond) && c == x) && cond == 1) && v % -2 == 0) && v <= c) && ((((((((x <= 2 && a == x) && c == a) && r == 0) && p == 1) && s == 1) && q == 0) && b == y) || ((((((((a <= y && r == 1) && q == 1) && b < a) && x <= 2) && c == a) && s == 0) && p == 0) && b == x))) && 1 <= b)) || (((((((((d == 2 && 1 == cond) && 1 <= v / 2) && v * -1 / -2 <= b) && c == y) && c <= 2) && c + b * k == y) && cond == 1) && ((((((((x <= 2 && a == x) && c == a) && r == 0) && p == 1) && s == 1) && q == 0) && b == y) || ((((((((a <= y && r == 1) && q == 1) && b < a) && x <= 2) && c == a) && s == 0) && p == 0) && b == x))) && p == 0) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: (((((((((((((((((v <= b && x <= 2) && a == x) && c == a) && p == 1) && b <= v) && b == y) && d == 1) && b <= c) && k == 0) && r == 0) && 1 == cond) && s == 1) && q == 0) && cond == 1) && 1 <= b) || ((((((((((((((a <= y && r == 1) && d == 2) && 1 <= v / 2) && c == a) && s == 0) && q == 1) && b < a) && k == 0) && 1 == cond) && v * -1 / -2 <= b) && cond == 1) && b == x) && p == 0) && y <= 2)) || (((((((((((((((a <= y && r == 1) && c == a) && s == 0) && d == 1) && v < c) && q == 1) && b < a) && k == 0) && 1 == cond) && 1 <= v) && cond == 1) && b == x) && p == 0) && y <= 2) && 1 <= b)) || (((((((((((((((d == 2 && a == x) && p == 1) && c <= 2) && v % -2 == 0) && v <= c) && b == y) && k == 0) && b <= v * -1 / -2) && r == 0) && 1 == cond) && c == x) && s == 1) && q == 0) && cond == 1) && 1 <= b) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((k == 0 && d == 2) && b <= v * -1 / -2) && (((((((((x <= 2 && c == a) && r == 0) && 1 == cond) && c == x) && p == 1) && s == 1) && q == 0) && b == y) || ((((((((a <= y && r == 1) && q == 1) && c == a) && 1 == cond) && s == 0) && b == x) && p == 0) && y <= 2))) && cond == 1) && v % -2 == 0) && v <= c) && 1 <= b) || ((((((k == 0 && ((((((((((a <= y && b == v) && r == 1) && q == 1) && b < a) && c == a) && 1 == cond) && s == 0) && b == x) && p == 0) || (((((((((b == v && x <= 2) && c == a) && r == 0) && 1 == cond) && c == x) && p == 1) && s == 1) && q == 0) && b == y))) && cond == 1) && d == 1) && b <= c) && y <= 2) && 1 <= b) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((((((((((a == y && r == 1) && q == 1) && b < a) && c < 2) && 1 <= c) && s == 0) && cond == 1) && b == x) && p == 0) && y <= 2) && 1 <= b) || ((((((((((((((a == y && s + r == 0) && r == 1) && b < a) && x == b + y) && x <= 2) && 1 == cond) && q + p == 1) && cond == 1) && p == 0) || ((((((((((1 <= y && b < a) && x <= 2) && a == x) && r == 0) && 1 == cond) && b == q * x + y) && s == q * r + 1) && p == 1) && 1 <= x) && cond == 1)) && 0 < (b * -1 + 2) / 2 + b) && c < (c * -1 + 2) / 2) && 0 < c + (c * -1 + 2) / 2) && y <= 2)) || ((((((((((((a == y && r == 1) && x <= 2) && x == b + y * 2) && 1 <= x) && s + 2 == 0) && q == 1) && 1 <= y) && b < a) && 1 == cond) && cond == 1) && p == 0) && 2 * y <= x)) || ((((((((((a == x && a <= 2) && r == 0) && p == 1) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y) && 1 <= b) && y <= 2) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (((((((((((k == 2 && d == 2) && 1 == cond) && 1 <= v / 2) && v * -1 / -2 <= b) && cond == 1) && ((((((((a <= y && r == 1) && q == 1) && b < a) && s == 0) && p == 0) && b == x) && y <= 2) || ((((((((x <= 2 && a == x) && r == 0) && p == 1) && s == 1) && 1 <= x) && q == 0) && b == y) && y <= 2))) && y == c + b * 2) && p == 0) || ((((((k == 2 && ((((b <= v && cond == 1) && d == 1) && ((((((((a <= y && r == 1) && q == 1) && b < a) && s == 0) && p == 0) && b == x) && y <= 2) || ((((((((x <= 2 && a == x) && r == 0) && p == 1) && s == 1) && 1 <= x) && q == 0) && b == y) && y <= 2))) || (((((d == 2 && b <= v * -1 / -2) && 2 * (v * -1 / -2) <= 2) && cond == 1) && v % -2 == 0) && ((((((((a <= y && r == 1) && q == 1) && b < a) && s == 0) && p == 0) && b == x) && y <= 2) || ((((((((x <= 2 && a == x) && r == 0) && p == 1) && s == 1) && 1 <= x) && q == 0) && b == y) && y <= 2))))) && 1 == cond) && x == c + b * 2) && q == 0) && 2 * b <= x) && 2 * c < 2)) || ((((((((((((c == a && p == 1) && c <= 2) && b == y) && k == 0) && r == 0) && c == x) && s == 1) && 1 <= c) && q == 0) && cond == 1) && y <= 2) && 1 <= b)) || ((((((((((((((((((k == 1 && x <= 2) && 0 <= c) && v <= b) && a == x) && p == 1) && 1 <= x) && x < 2 * b) && b <= v) && b == y) && d == 1) && r == 0) && 1 == cond) && s == 1) && q == 0) && cond == 1) && 2 * c < 2) && b <= x) && y <= 2)) || (((((((((((a == y && r == 1) && q == 1) && k == 0) && b < c) && s == 0) && c <= 2) && c + b * k == y) && cond == 1) && b == x) && p == 0) && 1 <= b) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((((((((a <= y && b == v) && r == 1) && c == a) && s == 0) && d == 1) && q == 1) && b < a) && k == 0) && 1 == cond) && b == x) && p == 0) && y <= 2) || (((((((((((b == v && x <= 2) && k == 0) && c == a) && 1 == cond) && r == 0) && c == x) && p == 1) && s == 1) && q == 0) && b == y) && d == 1)) && cond == 1) && b <= c) && 1 <= b) || ((((((((((((((((x <= 2 && d == 2) && a == x) && p == 1) && v % -2 == 0) && b == y) && k == 0) && b <= v * -1 / -2) && 2 * b <= c) && r == 0) && 1 == cond) && c == x) && s == 1) && 2 * (v * -1 / -2) <= 2) && q == 0) && cond == 1) && 1 <= b)) || ((((((((((((((a <= y && r == 1) && d == 2) && 1 <= v / 2) && c == a) && s == 0) && q == 1) && b < a) && k == 0) && 1 == cond) && v * -1 / -2 <= b) && cond == 1) && b == x) && p == 0) && y <= 2) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((d == 2 && 1 <= v / 2) && v * -1 / -2 <= b) && c == y) && c <= 2) && c + b * k == y) && cond == 1) && (((((((((x <= 2 && c == a) && r == 0) && 1 == cond) && c == x) && p == 1) && s == 1) && q == 0) && b == y) || (((((((((a <= y && r == 1) && q == 1) && b < a) && x <= 2) && c == a) && 1 == cond) && s == 0) && b == x) && p == 0))) && p == 0) || ((((((((k == 0 && d == 2) && b <= v * -1 / -2) && c == x) && cond == 1) && v % -2 == 0) && v <= c) && (((((((((x <= 2 && c == a) && r == 0) && 1 == cond) && c == x) && p == 1) && s == 1) && q == 0) && b == y) || (((((((((a <= y && r == 1) && q == 1) && b < a) && x <= 2) && c == a) && 1 == cond) && s == 0) && b == x) && p == 0))) && 1 <= b)) || ((((((((((((((((b == v && r == 1) && q == 1) && b < a) && c == a) && b < y) && s == 0) && b == x) && p == 0) || ((((((((b == v && c == a) && r == 0) && 1 == cond) && c == x) && p == 1) && s == 1) && q == 0) && b == y)) && k == 0) && c == x) && c <= 2) && cond == 1) && d == 1) && b <= c) && 1 <= b)) || ((((((((((((((((b == v && r == 1) && q == 1) && b < a) && c == a) && b < y) && s == 0) && b == x) && p == 0) || ((((((((b == v && c == a) && r == 0) && 1 == cond) && c == x) && p == 1) && s == 1) && q == 0) && b == y)) && 1 == cond) && c == y) && c <= 2) && c + b * k == y) && cond == 1) && d == 1) && 1 <= b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 35.7s, OverallIterations: 27, TraceHistogramMax: 6, AutomataDifference: 19.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 969 SDtfs, 4509 SDslu, 3999 SDs, 0 SdLazy, 5307 SolverSat, 630 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1180 GetRequests, 759 SyntacticMatches, 4 SemanticMatches, 417 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1229 ImplicationChecksByTransitivity, 11.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 27 MinimizatonAttempts, 1117 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 51 NumberOfFragments, 1831 HoareAnnotationTreeSize, 9 FomulaSimplifications, 206532 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 26807 FormulaSimplificationTreeSizeReductionInter, 8.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 1010 NumberOfCodeBlocks, 931 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 983 ConstructedInterpolants, 0 QuantifiedInterpolants, 390033 SizeOfPredicates, 319 NumberOfNonLiveVariables, 3769 ConjunctsInSsa, 778 ConjunctsInUnsatCore, 27 InterpolantComputations, 10 PerfectInterpolantSequences, 488/653 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...