/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 13:15:40,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 13:15:40,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 13:15:41,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 13:15:41,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 13:15:41,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 13:15:41,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 13:15:41,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-20 13:15:41,102 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 13:15:41,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 13:15:41,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 13:15:41,105 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 13:15:41,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 13:15:41,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 13:15:41,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 13:15:41,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 13:15:41,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 13:15:41,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 13:15:41,106 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 13:15:41,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 13:15:41,106 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 13:15:41,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 13:15:41,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 13:15:41,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 13:15:41,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 13:15:41,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 13:15:41,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:15:41,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 13:15:41,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 13:15:41,107 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 13:15:41,108 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 13:15:41,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 13:15:41,108 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 13:15:41,108 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 13:15:41,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 13:15:41,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 13:15:41,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 13:15:41,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 13:15:41,380 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 13:15:41,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2022-03-20 13:15:41,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68763f2f2/1f747fcc3f2d447b973096b5b3df9a9c/FLAGd9f05e395 [2022-03-20 13:15:41,879 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 13:15:41,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2022-03-20 13:15:41,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68763f2f2/1f747fcc3f2d447b973096b5b3df9a9c/FLAGd9f05e395 [2022-03-20 13:15:42,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68763f2f2/1f747fcc3f2d447b973096b5b3df9a9c [2022-03-20 13:15:42,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 13:15:42,265 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 13:15:42,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 13:15:42,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 13:15:42,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 13:15:42,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:15:42" (1/1) ... [2022-03-20 13:15:42,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164fcf7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:15:42, skipping insertion in model container [2022-03-20 13:15:42,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:15:42" (1/1) ... [2022-03-20 13:15:42,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 13:15:42,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 13:15:42,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2022-03-20 13:15:42,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:15:42,661 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 13:15:42,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2022-03-20 13:15:42,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:15:42,793 INFO L208 MainTranslator]: Completed translation [2022-03-20 13:15:42,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:15:42 WrapperNode [2022-03-20 13:15:42,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 13:15:42,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 13:15:42,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 13:15:42,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 13:15:42,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:15:42" (1/1) ... [2022-03-20 13:15:42,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:15:42" (1/1) ... [2022-03-20 13:15:42,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:15:42" (1/1) ... [2022-03-20 13:15:42,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:15:42" (1/1) ... [2022-03-20 13:15:42,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:15:42" (1/1) ... [2022-03-20 13:15:42,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:15:42" (1/1) ... [2022-03-20 13:15:42,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:15:42" (1/1) ... [2022-03-20 13:15:42,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 13:15:42,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 13:15:42,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 13:15:42,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 13:15:42,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:15:42" (1/1) ... [2022-03-20 13:15:42,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:15:42,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:15:42,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 13:15:42,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 13:15:42,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 13:15:42,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 13:15:42,949 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 13:15:42,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 13:15:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 13:15:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 13:15:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 13:15:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 13:15:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2022-03-20 13:15:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2022-03-20 13:15:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 13:15:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 13:15:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-20 13:15:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 13:15:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 13:15:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 13:15:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 13:15:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 13:15:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 13:15:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 13:15:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 13:15:43,123 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 13:15:43,125 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 13:15:43,720 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 13:15:43,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 13:15:43,726 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-20 13:15:43,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:15:43 BoogieIcfgContainer [2022-03-20 13:15:43,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 13:15:43,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 13:15:43,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 13:15:43,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 13:15:43,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 01:15:42" (1/3) ... [2022-03-20 13:15:43,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55be0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:15:43, skipping insertion in model container [2022-03-20 13:15:43,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:15:42" (2/3) ... [2022-03-20 13:15:43,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55be0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:15:43, skipping insertion in model container [2022-03-20 13:15:43,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:15:43" (3/3) ... [2022-03-20 13:15:43,735 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2022-03-20 13:15:43,739 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 13:15:43,740 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 13:15:43,771 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 13:15:43,776 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 13:15:43,776 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 13:15:43,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 13:15:43,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-20 13:15:43,798 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:15:43,798 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:15:43,799 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:15:43,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:15:43,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1054632774, now seen corresponding path program 1 times [2022-03-20 13:15:43,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:43,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1546232621] [2022-03-20 13:15:43,825 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:15:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1054632774, now seen corresponding path program 2 times [2022-03-20 13:15:43,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:15:43,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358868179] [2022-03-20 13:15:43,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:15:43,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:15:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:44,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:15:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:44,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:15:44,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358868179] [2022-03-20 13:15:44,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358868179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:15:44,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:15:44,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-20 13:15:44,663 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:15:44,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1546232621] [2022-03-20 13:15:44,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1546232621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:15:44,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:15:44,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-20 13:15:44,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69389351] [2022-03-20 13:15:44,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:15:44,669 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-20 13:15:44,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:44,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-20 13:15:44,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-03-20 13:15:44,699 INFO L87 Difference]: Start difference. First operand has 55 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:45,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:15:45,437 INFO L93 Difference]: Finished difference Result 92 states and 136 transitions. [2022-03-20 13:15:45,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-20 13:15:45,439 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-03-20 13:15:45,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:15:45,450 INFO L225 Difference]: With dead ends: 92 [2022-03-20 13:15:45,450 INFO L226 Difference]: Without dead ends: 57 [2022-03-20 13:15:45,453 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-03-20 13:15:45,457 INFO L913 BasicCegarLoop]: 63 mSDtfsCounter, 120 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-20 13:15:45,458 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 717 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-20 13:15:45,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-03-20 13:15:45,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2022-03-20 13:15:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:45,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2022-03-20 13:15:45,509 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 48 [2022-03-20 13:15:45,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:15:45,510 INFO L478 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2022-03-20 13:15:45,510 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:45,510 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2022-03-20 13:15:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 13:15:45,512 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:15:45,512 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:15:45,512 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 13:15:45,513 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:15:45,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:15:45,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1470519801, now seen corresponding path program 1 times [2022-03-20 13:15:45,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:45,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1544603262] [2022-03-20 13:15:45,518 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:15:45,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1470519801, now seen corresponding path program 2 times [2022-03-20 13:15:45,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:15:45,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867041791] [2022-03-20 13:15:45,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:15:45,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:15:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:45,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:15:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:45,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:15:45,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867041791] [2022-03-20 13:15:45,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867041791] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:15:45,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451449251] [2022-03-20 13:15:45,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:15:45,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:15:45,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:15:45,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:15:45,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 13:15:46,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 13:15:46,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:15:46,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-20 13:15:46,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:15:46,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:46,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:15:47,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:47,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451449251] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:15:47,411 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:15:47,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14, 14] total 32 [2022-03-20 13:15:47,412 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:15:47,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1544603262] [2022-03-20 13:15:47,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1544603262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:15:47,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:15:47,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-20 13:15:47,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946302614] [2022-03-20 13:15:47,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:15:47,413 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-20 13:15:47,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:47,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-20 13:15:47,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=751, Unknown=0, NotChecked=0, Total=992 [2022-03-20 13:15:47,414 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:47,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:15:47,946 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2022-03-20 13:15:47,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-20 13:15:47,947 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-03-20 13:15:47,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:15:47,948 INFO L225 Difference]: With dead ends: 65 [2022-03-20 13:15:47,948 INFO L226 Difference]: Without dead ends: 62 [2022-03-20 13:15:47,949 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=358, Invalid=1202, Unknown=0, NotChecked=0, Total=1560 [2022-03-20 13:15:47,950 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 50 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 13:15:47,951 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 239 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 13:15:47,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-03-20 13:15:47,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2022-03-20 13:15:47,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:47,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2022-03-20 13:15:47,967 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 53 [2022-03-20 13:15:47,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:15:47,967 INFO L478 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2022-03-20 13:15:47,967 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:47,968 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2022-03-20 13:15:47,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-20 13:15:47,969 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:15:47,969 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:15:48,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 13:15:48,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:15:48,200 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:15:48,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:15:48,200 INFO L85 PathProgramCache]: Analyzing trace with hash 412615706, now seen corresponding path program 3 times [2022-03-20 13:15:48,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:48,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [78231222] [2022-03-20 13:15:48,201 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:15:48,202 INFO L85 PathProgramCache]: Analyzing trace with hash 412615706, now seen corresponding path program 4 times [2022-03-20 13:15:48,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:15:48,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570856533] [2022-03-20 13:15:48,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:15:48,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:15:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:48,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:15:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:48,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:15:48,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570856533] [2022-03-20 13:15:48,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570856533] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:15:48,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436463259] [2022-03-20 13:15:48,640 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 13:15:48,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:15:48,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:15:48,648 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:15:48,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 13:15:48,876 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 13:15:48,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:15:48,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-20 13:15:48,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:15:49,161 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:49,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:15:49,689 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:49,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436463259] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:15:49,690 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:15:49,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 34 [2022-03-20 13:15:49,691 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:15:49,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [78231222] [2022-03-20 13:15:49,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [78231222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:15:49,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:15:49,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-20 13:15:49,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277420914] [2022-03-20 13:15:49,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:15:49,692 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-20 13:15:49,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:49,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-20 13:15:49,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2022-03-20 13:15:49,693 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:15:50,342 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2022-03-20 13:15:50,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-20 13:15:50,344 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2022-03-20 13:15:50,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:15:50,345 INFO L225 Difference]: With dead ends: 70 [2022-03-20 13:15:50,345 INFO L226 Difference]: Without dead ends: 67 [2022-03-20 13:15:50,346 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=413, Invalid=1393, Unknown=0, NotChecked=0, Total=1806 [2022-03-20 13:15:50,347 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 53 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-20 13:15:50,348 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 292 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-20 13:15:50,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-03-20 13:15:50,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2022-03-20 13:15:50,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 60 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:50,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2022-03-20 13:15:50,361 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 58 [2022-03-20 13:15:50,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:15:50,366 INFO L478 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2022-03-20 13:15:50,366 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:50,366 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2022-03-20 13:15:50,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 13:15:50,367 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:15:50,367 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:15:50,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-20 13:15:50,571 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-03-20 13:15:50,572 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:15:50,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:15:50,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1771010407, now seen corresponding path program 5 times [2022-03-20 13:15:50,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:50,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1607509420] [2022-03-20 13:15:50,573 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:15:50,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1771010407, now seen corresponding path program 6 times [2022-03-20 13:15:50,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:15:50,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378777669] [2022-03-20 13:15:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:15:50,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:15:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:50,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:15:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:50,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:15:50,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378777669] [2022-03-20 13:15:50,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378777669] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:15:50,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393128527] [2022-03-20 13:15:50,981 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 13:15:50,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:15:50,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:15:50,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:15:50,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 13:15:54,152 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-03-20 13:15:54,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:15:54,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-20 13:15:54,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:15:54,481 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:54,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:15:55,008 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:55,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393128527] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:15:55,009 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:15:55,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 16, 16] total 36 [2022-03-20 13:15:55,009 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:15:55,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1607509420] [2022-03-20 13:15:55,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1607509420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:15:55,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:15:55,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-20 13:15:55,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520186836] [2022-03-20 13:15:55,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:15:55,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-20 13:15:55,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:55,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-20 13:15:55,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-03-20 13:15:55,014 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:55,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:15:55,658 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2022-03-20 13:15:55,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-20 13:15:55,658 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-20 13:15:55,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:15:55,659 INFO L225 Difference]: With dead ends: 75 [2022-03-20 13:15:55,660 INFO L226 Difference]: Without dead ends: 72 [2022-03-20 13:15:55,661 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-20 13:15:55,661 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 55 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-20 13:15:55,662 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 328 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-20 13:15:55,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-03-20 13:15:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2022-03-20 13:15:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2022-03-20 13:15:55,683 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 63 [2022-03-20 13:15:55,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:15:55,687 INFO L478 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2022-03-20 13:15:55,687 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:55,687 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2022-03-20 13:15:55,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 13:15:55,688 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:15:55,688 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:15:55,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-20 13:15:55,891 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:15:55,892 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:15:55,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:15:55,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1370440838, now seen corresponding path program 7 times [2022-03-20 13:15:55,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:55,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [314831141] [2022-03-20 13:15:55,893 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:15:55,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1370440838, now seen corresponding path program 8 times [2022-03-20 13:15:55,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:15:55,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270114226] [2022-03-20 13:15:55,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:15:55,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:15:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:56,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:15:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:56,269 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:56,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:15:56,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270114226] [2022-03-20 13:15:56,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270114226] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:15:56,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419568075] [2022-03-20 13:15:56,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:15:56,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:15:56,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:15:56,272 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:15:56,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 13:15:56,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 13:15:56,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:15:56,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 31 conjunts are in the unsatisfiable core [2022-03-20 13:15:56,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:15:56,959 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:56,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:15:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:57,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419568075] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:15:57,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:15:57,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17, 17] total 38 [2022-03-20 13:15:57,473 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:15:57,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [314831141] [2022-03-20 13:15:57,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [314831141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:15:57,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:15:57,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-03-20 13:15:57,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799354165] [2022-03-20 13:15:57,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:15:57,474 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-20 13:15:57,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:57,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-20 13:15:57,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-03-20 13:15:57,475 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:58,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:15:58,105 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2022-03-20 13:15:58,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-20 13:15:58,105 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 13:15:58,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:15:58,106 INFO L225 Difference]: With dead ends: 80 [2022-03-20 13:15:58,106 INFO L226 Difference]: Without dead ends: 77 [2022-03-20 13:15:58,107 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=535, Invalid=1817, Unknown=0, NotChecked=0, Total=2352 [2022-03-20 13:15:58,108 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 57 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 13:15:58,108 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 352 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 13:15:58,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-03-20 13:15:58,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2022-03-20 13:15:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2022-03-20 13:15:58,119 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 68 [2022-03-20 13:15:58,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:15:58,119 INFO L478 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2022-03-20 13:15:58,120 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:15:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2022-03-20 13:15:58,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-20 13:15:58,120 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:15:58,121 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:15:58,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-20 13:15:58,335 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:15:58,335 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:15:58,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:15:58,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1100780743, now seen corresponding path program 9 times [2022-03-20 13:15:58,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:58,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1757585332] [2022-03-20 13:15:58,336 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:15:58,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1100780743, now seen corresponding path program 10 times [2022-03-20 13:15:58,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:15:58,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378615461] [2022-03-20 13:15:58,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:15:58,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:15:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:58,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:15:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:15:58,770 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:58,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:15:58,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378615461] [2022-03-20 13:15:58,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378615461] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:15:58,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701333650] [2022-03-20 13:15:58,771 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 13:15:58,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:15:58,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:15:58,774 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:15:58,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 13:15:59,057 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 13:15:59,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:15:59,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-20 13:15:59,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:15:59,355 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:59,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:15:59,954 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:15:59,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701333650] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:15:59,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:15:59,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18, 18] total 40 [2022-03-20 13:15:59,955 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:15:59,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1757585332] [2022-03-20 13:15:59,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1757585332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:15:59,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:15:59,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-20 13:15:59,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540749223] [2022-03-20 13:15:59,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:15:59,956 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-20 13:15:59,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:15:59,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-20 13:15:59,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-03-20 13:15:59,957 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:00,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:16:00,754 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2022-03-20 13:16:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-20 13:16:00,755 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-20 13:16:00,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:16:00,756 INFO L225 Difference]: With dead ends: 85 [2022-03-20 13:16:00,756 INFO L226 Difference]: Without dead ends: 82 [2022-03-20 13:16:00,757 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=602, Invalid=2050, Unknown=0, NotChecked=0, Total=2652 [2022-03-20 13:16:00,757 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 59 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-20 13:16:00,758 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 406 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-20 13:16:00,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-03-20 13:16:00,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2022-03-20 13:16:00,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.0133333333333334) internal successors, (76), 75 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:00,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2022-03-20 13:16:00,778 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 73 [2022-03-20 13:16:00,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:16:00,778 INFO L478 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2022-03-20 13:16:00,778 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:00,779 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2022-03-20 13:16:00,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 13:16:00,780 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:16:00,784 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:16:00,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-20 13:16:01,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:01,008 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:16:01,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:16:01,008 INFO L85 PathProgramCache]: Analyzing trace with hash -812401958, now seen corresponding path program 11 times [2022-03-20 13:16:01,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:01,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [111184408] [2022-03-20 13:16:01,009 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:16:01,009 INFO L85 PathProgramCache]: Analyzing trace with hash -812401958, now seen corresponding path program 12 times [2022-03-20 13:16:01,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:16:01,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381355167] [2022-03-20 13:16:01,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:16:01,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:16:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:01,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:16:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:01,526 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:01,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:16:01,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381355167] [2022-03-20 13:16:01,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381355167] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:16:01,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200113947] [2022-03-20 13:16:01,526 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 13:16:01,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:01,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:16:01,528 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:16:01,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 13:16:02,041 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-20 13:16:02,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:16:02,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 34 conjunts are in the unsatisfiable core [2022-03-20 13:16:02,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:16:02,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 13:16:02,720 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 13:16:02,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 22 [2022-03-20 13:16:02,896 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 15 proven. 23 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-20 13:16:02,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:16:05,122 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-20 13:16:05,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200113947] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:16:05,123 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:16:05,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 9, 9] total 38 [2022-03-20 13:16:05,123 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:16:05,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [111184408] [2022-03-20 13:16:05,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [111184408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:16:05,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:16:05,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-20 13:16:05,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058373542] [2022-03-20 13:16:05,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:16:05,124 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-20 13:16:05,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:05,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-20 13:16:05,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1172, Unknown=0, NotChecked=0, Total=1406 [2022-03-20 13:16:05,125 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand has 24 states, 24 states have (on average 3.125) internal successors, (75), 23 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:06,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:16:06,073 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2022-03-20 13:16:06,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-20 13:16:06,073 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.125) internal successors, (75), 23 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-20 13:16:06,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:16:06,074 INFO L225 Difference]: With dead ends: 90 [2022-03-20 13:16:06,074 INFO L226 Difference]: Without dead ends: 87 [2022-03-20 13:16:06,075 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=370, Invalid=2180, Unknown=0, NotChecked=0, Total=2550 [2022-03-20 13:16:06,075 INFO L913 BasicCegarLoop]: 26 mSDtfsCounter, 58 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-20 13:16:06,076 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 438 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-20 13:16:06,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-03-20 13:16:06,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2022-03-20 13:16:06,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.0125) internal successors, (81), 80 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2022-03-20 13:16:06,088 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 78 [2022-03-20 13:16:06,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:16:06,088 INFO L478 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2022-03-20 13:16:06,088 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.125) internal successors, (75), 23 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:06,088 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2022-03-20 13:16:06,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 13:16:06,089 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:16:06,089 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:16:06,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-20 13:16:06,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:06,314 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:16:06,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:16:06,314 INFO L85 PathProgramCache]: Analyzing trace with hash -570882087, now seen corresponding path program 13 times [2022-03-20 13:16:06,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:06,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1668226221] [2022-03-20 13:16:06,315 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:16:06,315 INFO L85 PathProgramCache]: Analyzing trace with hash -570882087, now seen corresponding path program 14 times [2022-03-20 13:16:06,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:16:06,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715790363] [2022-03-20 13:16:06,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:16:06,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:16:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:06,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:16:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:06,814 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:06,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:16:06,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715790363] [2022-03-20 13:16:06,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715790363] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:16:06,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492757025] [2022-03-20 13:16:06,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:16:06,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:06,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:16:06,816 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:16:06,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-20 13:16:07,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 13:16:07,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:16:07,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-20 13:16:07,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:16:07,506 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:07,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:16:08,245 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:08,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492757025] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:16:08,246 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:16:08,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 20, 20] total 44 [2022-03-20 13:16:08,246 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:16:08,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1668226221] [2022-03-20 13:16:08,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1668226221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:16:08,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:16:08,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-20 13:16:08,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133345870] [2022-03-20 13:16:08,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:16:08,247 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-20 13:16:08,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:08,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-20 13:16:08,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=1435, Unknown=0, NotChecked=0, Total=1892 [2022-03-20 13:16:08,248 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand has 25 states, 25 states have (on average 3.2) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:09,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:16:09,187 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2022-03-20 13:16:09,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-20 13:16:09,187 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.2) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-20 13:16:09,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:16:09,188 INFO L225 Difference]: With dead ends: 95 [2022-03-20 13:16:09,188 INFO L226 Difference]: Without dead ends: 92 [2022-03-20 13:16:09,189 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=748, Invalid=2558, Unknown=0, NotChecked=0, Total=3306 [2022-03-20 13:16:09,189 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 62 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-20 13:16:09,190 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 478 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-20 13:16:09,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-03-20 13:16:09,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 89. [2022-03-20 13:16:09,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:09,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2022-03-20 13:16:09,203 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 83 [2022-03-20 13:16:09,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:16:09,203 INFO L478 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2022-03-20 13:16:09,204 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.2) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:09,204 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2022-03-20 13:16:09,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-20 13:16:09,204 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:16:09,204 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:16:09,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-20 13:16:09,411 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:09,412 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:16:09,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:16:09,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1780941370, now seen corresponding path program 15 times [2022-03-20 13:16:09,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:09,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [754696636] [2022-03-20 13:16:09,413 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:16:09,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1780941370, now seen corresponding path program 16 times [2022-03-20 13:16:09,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:16:09,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852308559] [2022-03-20 13:16:09,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:16:09,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:16:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:09,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:16:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:09,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:16:09,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852308559] [2022-03-20 13:16:09,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852308559] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:16:09,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026959109] [2022-03-20 13:16:09,930 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 13:16:09,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:09,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:16:09,932 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:16:09,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-20 13:16:10,279 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 13:16:10,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:16:10,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 39 conjunts are in the unsatisfiable core [2022-03-20 13:16:10,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:16:10,584 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:10,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:16:11,373 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:11,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026959109] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:16:11,373 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:16:11,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 21, 21] total 46 [2022-03-20 13:16:11,374 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:16:11,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [754696636] [2022-03-20 13:16:11,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [754696636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:16:11,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:16:11,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-20 13:16:11,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719237021] [2022-03-20 13:16:11,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:16:11,375 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-20 13:16:11,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:11,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-20 13:16:11,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=500, Invalid=1570, Unknown=0, NotChecked=0, Total=2070 [2022-03-20 13:16:11,376 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:12,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:16:12,284 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2022-03-20 13:16:12,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-20 13:16:12,284 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-20 13:16:12,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:16:12,285 INFO L225 Difference]: With dead ends: 100 [2022-03-20 13:16:12,285 INFO L226 Difference]: Without dead ends: 97 [2022-03-20 13:16:12,286 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=827, Invalid=2833, Unknown=0, NotChecked=0, Total=3660 [2022-03-20 13:16:12,286 INFO L913 BasicCegarLoop]: 28 mSDtfsCounter, 62 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-20 13:16:12,287 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 526 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-20 13:16:12,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-03-20 13:16:12,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 94. [2022-03-20 13:16:12,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 90 states have (on average 1.011111111111111) internal successors, (91), 90 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:12,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2022-03-20 13:16:12,298 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 88 [2022-03-20 13:16:12,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:16:12,299 INFO L478 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2022-03-20 13:16:12,299 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:12,299 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2022-03-20 13:16:12,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-20 13:16:12,300 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:16:12,300 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:16:12,321 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-20 13:16:12,511 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-20 13:16:12,512 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:16:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:16:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1289003911, now seen corresponding path program 17 times [2022-03-20 13:16:12,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:12,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1161704742] [2022-03-20 13:16:12,513 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:16:12,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1289003911, now seen corresponding path program 18 times [2022-03-20 13:16:12,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:16:12,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549801879] [2022-03-20 13:16:12,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:16:12,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:16:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:13,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:16:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:13,083 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:13,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:16:13,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549801879] [2022-03-20 13:16:13,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549801879] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:16:13,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852428615] [2022-03-20 13:16:13,084 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 13:16:13,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:13,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:16:13,086 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:16:13,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-20 13:16:13,880 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-20 13:16:13,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:16:13,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-20 13:16:13,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:16:14,373 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 13:16:14,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-03-20 13:16:14,530 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 24 proven. 35 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-20 13:16:14,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:16:16,805 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-20 13:16:16,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852428615] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:16:16,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:16:16,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 9, 9] total 41 [2022-03-20 13:16:16,806 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:16:16,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1161704742] [2022-03-20 13:16:16,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1161704742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:16:16,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:16:16,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-03-20 13:16:16,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401480056] [2022-03-20 13:16:16,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:16:16,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-20 13:16:16,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:16,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-20 13:16:16,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1427, Unknown=0, NotChecked=0, Total=1640 [2022-03-20 13:16:16,808 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 26 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:17,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:16:17,839 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2022-03-20 13:16:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-20 13:16:17,840 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 26 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-03-20 13:16:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:16:17,841 INFO L225 Difference]: With dead ends: 105 [2022-03-20 13:16:17,841 INFO L226 Difference]: Without dead ends: 102 [2022-03-20 13:16:17,842 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=353, Invalid=2839, Unknown=0, NotChecked=0, Total=3192 [2022-03-20 13:16:17,842 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 66 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-20 13:16:17,842 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 570 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-20 13:16:17,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-03-20 13:16:17,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 99. [2022-03-20 13:16:17,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:17,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2022-03-20 13:16:17,855 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 93 [2022-03-20 13:16:17,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:16:17,855 INFO L478 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2022-03-20 13:16:17,855 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 26 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2022-03-20 13:16:17,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-20 13:16:17,856 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:16:17,856 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:16:17,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-20 13:16:18,063 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-20 13:16:18,063 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:16:18,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:16:18,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1817219482, now seen corresponding path program 19 times [2022-03-20 13:16:18,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:18,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1818629268] [2022-03-20 13:16:18,064 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:16:18,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1817219482, now seen corresponding path program 20 times [2022-03-20 13:16:18,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:16:18,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573611343] [2022-03-20 13:16:18,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:16:18,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:16:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:18,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:16:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:18,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:16:18,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573611343] [2022-03-20 13:16:18,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573611343] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:16:18,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356360594] [2022-03-20 13:16:18,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:16:18,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:18,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:16:18,533 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:16:18,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-20 13:16:18,959 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 13:16:18,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:16:18,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 43 conjunts are in the unsatisfiable core [2022-03-20 13:16:18,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:16:19,269 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:19,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:16:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:20,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356360594] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:16:20,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:16:20,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 23, 23] total 50 [2022-03-20 13:16:20,212 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:16:20,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1818629268] [2022-03-20 13:16:20,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1818629268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:16:20,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:16:20,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-20 13:16:20,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9573321] [2022-03-20 13:16:20,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:16:20,213 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-20 13:16:20,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:20,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-20 13:16:20,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=592, Invalid=1858, Unknown=0, NotChecked=0, Total=2450 [2022-03-20 13:16:20,214 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand has 28 states, 28 states have (on average 3.392857142857143) internal successors, (95), 27 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:21,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:16:21,216 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2022-03-20 13:16:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-20 13:16:21,217 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.392857142857143) internal successors, (95), 27 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-03-20 13:16:21,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:16:21,217 INFO L225 Difference]: With dead ends: 110 [2022-03-20 13:16:21,217 INFO L226 Difference]: Without dead ends: 107 [2022-03-20 13:16:21,218 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=997, Invalid=3425, Unknown=0, NotChecked=0, Total=4422 [2022-03-20 13:16:21,219 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 69 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-20 13:16:21,219 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 616 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-20 13:16:21,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-03-20 13:16:21,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2022-03-20 13:16:21,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.01) internal successors, (101), 100 states have internal predecessors, (101), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:21,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2022-03-20 13:16:21,229 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 98 [2022-03-20 13:16:21,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:16:21,229 INFO L478 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2022-03-20 13:16:21,229 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.392857142857143) internal successors, (95), 27 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:21,230 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2022-03-20 13:16:21,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-20 13:16:21,230 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:16:21,230 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:16:21,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-20 13:16:21,432 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-20 13:16:21,432 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:16:21,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:16:21,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1265920281, now seen corresponding path program 21 times [2022-03-20 13:16:21,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:21,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2134265043] [2022-03-20 13:16:21,435 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:16:21,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1265920281, now seen corresponding path program 22 times [2022-03-20 13:16:21,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:16:21,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469943332] [2022-03-20 13:16:21,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:16:21,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:16:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:21,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:16:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:21,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:16:21,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469943332] [2022-03-20 13:16:21,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469943332] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:16:21,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320680391] [2022-03-20 13:16:21,986 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 13:16:21,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:21,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:16:21,987 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:16:21,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-20 13:16:22,285 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 13:16:22,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:16:22,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-20 13:16:22,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:16:22,628 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:22,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:16:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:23,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320680391] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:16:23,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:16:23,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 24, 24] total 52 [2022-03-20 13:16:23,566 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:16:23,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2134265043] [2022-03-20 13:16:23,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2134265043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:16:23,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:16:23,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-20 13:16:23,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969178157] [2022-03-20 13:16:23,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:16:23,567 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-20 13:16:23,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:23,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-20 13:16:23,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=641, Invalid=2011, Unknown=0, NotChecked=0, Total=2652 [2022-03-20 13:16:23,568 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand has 29 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:24,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:16:24,713 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2022-03-20 13:16:24,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-20 13:16:24,713 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2022-03-20 13:16:24,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:16:24,714 INFO L225 Difference]: With dead ends: 115 [2022-03-20 13:16:24,714 INFO L226 Difference]: Without dead ends: 112 [2022-03-20 13:16:24,716 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1088, Invalid=3742, Unknown=0, NotChecked=0, Total=4830 [2022-03-20 13:16:24,716 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 68 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-20 13:16:24,717 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 697 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-20 13:16:24,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-03-20 13:16:24,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2022-03-20 13:16:24,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 105 states have (on average 1.0095238095238095) internal successors, (106), 105 states have internal predecessors, (106), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:24,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2022-03-20 13:16:24,729 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 103 [2022-03-20 13:16:24,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:16:24,729 INFO L478 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2022-03-20 13:16:24,729 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:24,730 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2022-03-20 13:16:24,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-20 13:16:24,730 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:16:24,730 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:16:24,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-20 13:16:24,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-20 13:16:24,943 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:16:24,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:16:24,944 INFO L85 PathProgramCache]: Analyzing trace with hash 618031354, now seen corresponding path program 23 times [2022-03-20 13:16:24,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:24,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [345676529] [2022-03-20 13:16:24,944 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:16:24,945 INFO L85 PathProgramCache]: Analyzing trace with hash 618031354, now seen corresponding path program 24 times [2022-03-20 13:16:24,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:16:24,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175948648] [2022-03-20 13:16:24,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:16:24,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:16:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:25,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:16:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:25,528 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:25,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:16:25,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175948648] [2022-03-20 13:16:25,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175948648] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:16:25,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667526631] [2022-03-20 13:16:25,528 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 13:16:25,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:25,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:16:25,529 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:16:25,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-20 13:16:31,670 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-20 13:16:31,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:16:31,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 75 conjunts are in the unsatisfiable core [2022-03-20 13:16:31,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:16:32,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 13:16:32,970 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 13:16:32,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 18 [2022-03-20 13:16:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 33 proven. 47 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-03-20 13:16:33,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:16:37,304 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-03-20 13:16:37,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667526631] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:16:37,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:16:37,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 21, 20] total 67 [2022-03-20 13:16:37,305 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:16:37,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [345676529] [2022-03-20 13:16:37,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [345676529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:16:37,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:16:37,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-20 13:16:37,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400381121] [2022-03-20 13:16:37,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:16:37,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-20 13:16:37,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:37,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-20 13:16:37,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=3836, Unknown=0, NotChecked=0, Total=4422 [2022-03-20 13:16:37,307 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand has 30 states, 30 states have (on average 3.5) internal successors, (105), 29 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:38,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:16:38,755 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2022-03-20 13:16:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-20 13:16:38,756 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 29 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-03-20 13:16:38,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:16:38,757 INFO L225 Difference]: With dead ends: 120 [2022-03-20 13:16:38,757 INFO L226 Difference]: Without dead ends: 117 [2022-03-20 13:16:38,758 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 177 SyntacticMatches, 4 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1351 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=754, Invalid=6556, Unknown=0, NotChecked=0, Total=7310 [2022-03-20 13:16:38,759 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 70 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-20 13:16:38,759 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 701 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-20 13:16:38,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-03-20 13:16:38,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 114. [2022-03-20 13:16:38,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 110 states have (on average 1.009090909090909) internal successors, (111), 110 states have internal predecessors, (111), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:38,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2022-03-20 13:16:38,770 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 108 [2022-03-20 13:16:38,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:16:38,770 INFO L478 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2022-03-20 13:16:38,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 29 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:38,770 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2022-03-20 13:16:38,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-20 13:16:38,770 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:16:38,771 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:16:38,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-20 13:16:38,971 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-20 13:16:38,971 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:16:38,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:16:38,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1546768967, now seen corresponding path program 25 times [2022-03-20 13:16:38,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:38,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [266044340] [2022-03-20 13:16:38,973 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:16:38,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1546768967, now seen corresponding path program 26 times [2022-03-20 13:16:38,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:16:38,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847878696] [2022-03-20 13:16:38,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:16:38,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:16:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:39,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:16:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:39,553 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:39,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:16:39,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847878696] [2022-03-20 13:16:39,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847878696] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:16:39,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021467815] [2022-03-20 13:16:39,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:16:39,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:39,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:16:39,556 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:16:39,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-20 13:16:40,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 13:16:40,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:16:40,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 49 conjunts are in the unsatisfiable core [2022-03-20 13:16:40,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:16:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:40,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:16:41,559 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:41,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021467815] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:16:41,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:16:41,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 26, 26] total 56 [2022-03-20 13:16:41,559 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:16:41,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [266044340] [2022-03-20 13:16:41,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [266044340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:16:41,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:16:41,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-03-20 13:16:41,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264553716] [2022-03-20 13:16:41,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:16:41,560 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-03-20 13:16:41,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:41,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-03-20 13:16:41,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=739, Invalid=2341, Unknown=0, NotChecked=0, Total=3080 [2022-03-20 13:16:41,561 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:42,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:16:42,822 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2022-03-20 13:16:42,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-20 13:16:42,822 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-20 13:16:42,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:16:42,823 INFO L225 Difference]: With dead ends: 125 [2022-03-20 13:16:42,823 INFO L226 Difference]: Without dead ends: 122 [2022-03-20 13:16:42,824 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 202 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1270, Invalid=4430, Unknown=0, NotChecked=0, Total=5700 [2022-03-20 13:16:42,824 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 73 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-20 13:16:42,824 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 781 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-20 13:16:42,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-03-20 13:16:42,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 119. [2022-03-20 13:16:42,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 115 states have (on average 1.008695652173913) internal successors, (116), 115 states have internal predecessors, (116), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:42,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2022-03-20 13:16:42,838 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 113 [2022-03-20 13:16:42,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:16:42,838 INFO L478 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2022-03-20 13:16:42,838 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:42,838 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2022-03-20 13:16:42,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 13:16:42,839 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:16:42,839 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:16:42,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-03-20 13:16:43,039 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-20 13:16:43,039 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:16:43,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:16:43,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1560377254, now seen corresponding path program 27 times [2022-03-20 13:16:43,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:43,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1733250275] [2022-03-20 13:16:43,040 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:16:43,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1560377254, now seen corresponding path program 28 times [2022-03-20 13:16:43,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:16:43,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436156785] [2022-03-20 13:16:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:16:43,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:16:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:43,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:16:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:43,660 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:43,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:16:43,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436156785] [2022-03-20 13:16:43,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436156785] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:16:43,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937031469] [2022-03-20 13:16:43,661 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 13:16:43,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:43,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:16:43,664 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:16:43,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-20 13:16:44,003 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 13:16:44,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:16:44,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 51 conjunts are in the unsatisfiable core [2022-03-20 13:16:44,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:16:44,390 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:44,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:16:45,502 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:45,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937031469] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:16:45,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:16:45,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 27, 27] total 58 [2022-03-20 13:16:45,503 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:16:45,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1733250275] [2022-03-20 13:16:45,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1733250275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:16:45,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:16:45,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-03-20 13:16:45,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976694327] [2022-03-20 13:16:45,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:16:45,503 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-03-20 13:16:45,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:45,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-03-20 13:16:45,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=785, Invalid=2521, Unknown=0, NotChecked=0, Total=3306 [2022-03-20 13:16:45,504 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand has 32 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:46,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:16:46,913 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2022-03-20 13:16:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-20 13:16:46,913 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-20 13:16:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:16:46,914 INFO L225 Difference]: With dead ends: 130 [2022-03-20 13:16:46,914 INFO L226 Difference]: Without dead ends: 127 [2022-03-20 13:16:46,915 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1355, Invalid=4807, Unknown=0, NotChecked=0, Total=6162 [2022-03-20 13:16:46,915 INFO L913 BasicCegarLoop]: 34 mSDtfsCounter, 73 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 13:16:46,915 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 865 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-20 13:16:46,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-03-20 13:16:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 124. [2022-03-20 13:16:46,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 120 states have (on average 1.0083333333333333) internal successors, (121), 120 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:46,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2022-03-20 13:16:46,926 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 118 [2022-03-20 13:16:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:16:46,926 INFO L478 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2022-03-20 13:16:46,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2022-03-20 13:16:46,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 13:16:46,927 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:16:46,927 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:16:46,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-20 13:16:47,129 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:47,129 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:16:47,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:16:47,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1219668569, now seen corresponding path program 29 times [2022-03-20 13:16:47,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:47,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [533029738] [2022-03-20 13:16:47,130 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:16:47,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1219668569, now seen corresponding path program 30 times [2022-03-20 13:16:47,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:16:47,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36095535] [2022-03-20 13:16:47,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:16:47,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:16:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:47,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:16:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:47,768 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:47,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:16:47,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36095535] [2022-03-20 13:16:47,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36095535] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:16:47,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284360543] [2022-03-20 13:16:47,769 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 13:16:47,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:47,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:16:47,772 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:16:47,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-20 13:16:51,183 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-20 13:16:51,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:16:51,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 38 conjunts are in the unsatisfiable core [2022-03-20 13:16:51,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:16:51,934 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 13:16:51,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 26 [2022-03-20 13:16:52,168 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 59 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-03-20 13:16:52,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:16:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 101 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-03-20 13:16:54,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284360543] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:16:54,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:16:54,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 9, 9] total 47 [2022-03-20 13:16:54,733 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:16:54,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [533029738] [2022-03-20 13:16:54,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [533029738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:16:54,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:16:54,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-03-20 13:16:54,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936666880] [2022-03-20 13:16:54,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:16:54,734 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-03-20 13:16:54,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:54,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-03-20 13:16:54,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1913, Unknown=0, NotChecked=0, Total=2162 [2022-03-20 13:16:54,736 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand has 33 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 32 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:56,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:16:56,279 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2022-03-20 13:16:56,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-20 13:16:56,280 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 32 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 13:16:56,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:16:56,281 INFO L225 Difference]: With dead ends: 135 [2022-03-20 13:16:56,281 INFO L226 Difference]: Without dead ends: 132 [2022-03-20 13:16:56,282 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=443, Invalid=4249, Unknown=0, NotChecked=0, Total=4692 [2022-03-20 13:16:56,282 INFO L913 BasicCegarLoop]: 35 mSDtfsCounter, 79 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 13:16:56,282 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 891 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-20 13:16:56,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-03-20 13:16:56,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2022-03-20 13:16:56,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 125 states have (on average 1.008) internal successors, (126), 125 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:56,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2022-03-20 13:16:56,298 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 123 [2022-03-20 13:16:56,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:16:56,298 INFO L478 AbstractCegarLoop]: Abstraction has 129 states and 129 transitions. [2022-03-20 13:16:56,298 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 32 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:16:56,299 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 129 transitions. [2022-03-20 13:16:56,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-03-20 13:16:56,299 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:16:56,299 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:16:56,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-20 13:16:56,524 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-03-20 13:16:56,524 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:16:56,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:16:56,525 INFO L85 PathProgramCache]: Analyzing trace with hash 378466234, now seen corresponding path program 31 times [2022-03-20 13:16:56,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:56,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1039977257] [2022-03-20 13:16:56,525 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:16:56,525 INFO L85 PathProgramCache]: Analyzing trace with hash 378466234, now seen corresponding path program 32 times [2022-03-20 13:16:56,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:16:56,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035906504] [2022-03-20 13:16:56,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:16:56,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:16:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:57,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:16:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:16:57,233 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:57,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:16:57,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035906504] [2022-03-20 13:16:57,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035906504] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:16:57,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111387027] [2022-03-20 13:16:57,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:16:57,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:16:57,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:16:57,236 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:16:57,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-20 13:16:57,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 13:16:57,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:16:57,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-20 13:16:57,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:16:58,086 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:58,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:16:59,289 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:16:59,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111387027] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:16:59,290 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:16:59,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 29, 29] total 62 [2022-03-20 13:16:59,290 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:16:59,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1039977257] [2022-03-20 13:16:59,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1039977257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:16:59,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:16:59,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-03-20 13:16:59,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118575266] [2022-03-20 13:16:59,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:16:59,291 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-20 13:16:59,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:16:59,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-20 13:16:59,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=2911, Unknown=0, NotChecked=0, Total=3782 [2022-03-20 13:16:59,292 INFO L87 Difference]: Start difference. First operand 129 states and 129 transitions. Second operand has 34 states, 34 states have (on average 3.676470588235294) internal successors, (125), 33 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:00,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:17:00,870 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2022-03-20 13:17:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-20 13:17:00,870 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.676470588235294) internal successors, (125), 33 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2022-03-20 13:17:00,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:17:00,871 INFO L225 Difference]: With dead ends: 140 [2022-03-20 13:17:00,871 INFO L226 Difference]: Without dead ends: 137 [2022-03-20 13:17:00,872 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1513, Invalid=5627, Unknown=0, NotChecked=0, Total=7140 [2022-03-20 13:17:00,872 INFO L913 BasicCegarLoop]: 36 mSDtfsCounter, 78 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 2849 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 2899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-20 13:17:00,873 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 958 Invalid, 2899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2849 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-20 13:17:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-03-20 13:17:00,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2022-03-20 13:17:00,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 130 states have (on average 1.0076923076923077) internal successors, (131), 130 states have internal predecessors, (131), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:00,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2022-03-20 13:17:00,893 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 128 [2022-03-20 13:17:00,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:17:00,894 INFO L478 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2022-03-20 13:17:00,894 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.676470588235294) internal successors, (125), 33 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:00,894 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2022-03-20 13:17:00,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 13:17:00,895 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:17:00,895 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:17:00,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-03-20 13:17:01,115 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-03-20 13:17:01,115 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:17:01,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:17:01,115 INFO L85 PathProgramCache]: Analyzing trace with hash -165945607, now seen corresponding path program 33 times [2022-03-20 13:17:01,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:01,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2033924808] [2022-03-20 13:17:01,116 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:17:01,116 INFO L85 PathProgramCache]: Analyzing trace with hash -165945607, now seen corresponding path program 34 times [2022-03-20 13:17:01,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:17:01,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516163163] [2022-03-20 13:17:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:17:01,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:17:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:17:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:01,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:17:01,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516163163] [2022-03-20 13:17:01,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516163163] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:17:01,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301863090] [2022-03-20 13:17:01,845 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 13:17:01,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:01,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:17:01,846 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:17:01,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-20 13:17:02,205 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 13:17:02,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:17:02,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-20 13:17:02,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:17:02,611 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:02,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:17:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:03,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301863090] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:17:03,899 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:17:03,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 30, 30] total 64 [2022-03-20 13:17:03,900 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:17:03,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2033924808] [2022-03-20 13:17:03,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2033924808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:17:03,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:17:03,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-03-20 13:17:03,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053919173] [2022-03-20 13:17:03,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:17:03,900 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-20 13:17:03,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:03,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-20 13:17:03,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=911, Invalid=3121, Unknown=0, NotChecked=0, Total=4032 [2022-03-20 13:17:03,901 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand has 35 states, 35 states have (on average 3.7142857142857144) internal successors, (130), 34 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:05,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:17:05,625 INFO L93 Difference]: Finished difference Result 145 states and 145 transitions. [2022-03-20 13:17:05,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-20 13:17:05,625 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.7142857142857144) internal successors, (130), 34 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 13:17:05,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:17:05,626 INFO L225 Difference]: With dead ends: 145 [2022-03-20 13:17:05,626 INFO L226 Difference]: Without dead ends: 142 [2022-03-20 13:17:05,627 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 238 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1586, Invalid=6070, Unknown=0, NotChecked=0, Total=7656 [2022-03-20 13:17:05,628 INFO L913 BasicCegarLoop]: 37 mSDtfsCounter, 79 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 3067 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 3119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-20 13:17:05,628 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 1021 Invalid, 3119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3067 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-20 13:17:05,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-03-20 13:17:05,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 139. [2022-03-20 13:17:05,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 135 states have (on average 1.0074074074074073) internal successors, (136), 135 states have internal predecessors, (136), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:05,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2022-03-20 13:17:05,644 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 133 [2022-03-20 13:17:05,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:17:05,644 INFO L478 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2022-03-20 13:17:05,644 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.7142857142857144) internal successors, (130), 34 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:05,644 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2022-03-20 13:17:05,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-20 13:17:05,645 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:17:05,645 INFO L499 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:17:05,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-03-20 13:17:05,871 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-20 13:17:05,872 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:17:05,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:17:05,872 INFO L85 PathProgramCache]: Analyzing trace with hash 802004762, now seen corresponding path program 35 times [2022-03-20 13:17:05,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:05,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1607583265] [2022-03-20 13:17:05,873 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:17:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash 802004762, now seen corresponding path program 36 times [2022-03-20 13:17:05,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:17:05,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263799139] [2022-03-20 13:17:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:17:05,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:17:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:06,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:17:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:06,613 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:06,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:17:06,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263799139] [2022-03-20 13:17:06,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263799139] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:17:06,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313967806] [2022-03-20 13:17:06,613 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 13:17:06,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:06,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:17:06,616 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:17:06,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-03-20 13:17:07,600 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-20 13:17:07,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:17:07,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-20 13:17:07,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:17:08,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 13:17:08,438 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 13:17:08,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 22 [2022-03-20 13:17:08,596 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 51 proven. 71 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-03-20 13:17:08,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:17:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-03-20 13:17:11,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313967806] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:17:11,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:17:11,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 9, 9] total 50 [2022-03-20 13:17:11,502 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:17:11,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1607583265] [2022-03-20 13:17:11,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1607583265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:17:11,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:17:11,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-03-20 13:17:11,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565113103] [2022-03-20 13:17:11,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:17:11,502 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-03-20 13:17:11,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:11,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-03-20 13:17:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=2120, Unknown=0, NotChecked=0, Total=2450 [2022-03-20 13:17:11,503 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand has 36 states, 36 states have (on average 3.75) internal successors, (135), 35 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:13,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:17:13,390 INFO L93 Difference]: Finished difference Result 150 states and 150 transitions. [2022-03-20 13:17:13,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-20 13:17:13,391 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.75) internal successors, (135), 35 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 138 [2022-03-20 13:17:13,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:17:13,391 INFO L225 Difference]: With dead ends: 150 [2022-03-20 13:17:13,391 INFO L226 Difference]: Without dead ends: 147 [2022-03-20 13:17:13,392 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=598, Invalid=4952, Unknown=0, NotChecked=0, Total=5550 [2022-03-20 13:17:13,393 INFO L913 BasicCegarLoop]: 38 mSDtfsCounter, 81 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 3399 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 3453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 3399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-20 13:17:13,393 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 1117 Invalid, 3453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 3399 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-20 13:17:13,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-03-20 13:17:13,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2022-03-20 13:17:13,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 140 states have (on average 1.0071428571428571) internal successors, (141), 140 states have internal predecessors, (141), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:13,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2022-03-20 13:17:13,408 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 138 [2022-03-20 13:17:13,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:17:13,409 INFO L478 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2022-03-20 13:17:13,409 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.75) internal successors, (135), 35 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:13,409 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2022-03-20 13:17:13,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-20 13:17:13,410 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:17:13,410 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:17:13,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-03-20 13:17:13,635 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:13,635 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:17:13,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:17:13,636 INFO L85 PathProgramCache]: Analyzing trace with hash 931384217, now seen corresponding path program 37 times [2022-03-20 13:17:13,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:13,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [296959274] [2022-03-20 13:17:13,637 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:17:13,637 INFO L85 PathProgramCache]: Analyzing trace with hash 931384217, now seen corresponding path program 38 times [2022-03-20 13:17:13,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:17:13,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476549898] [2022-03-20 13:17:13,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:17:13,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:17:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:14,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:17:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:14,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:17:14,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476549898] [2022-03-20 13:17:14,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476549898] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:17:14,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819255104] [2022-03-20 13:17:14,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:17:14,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:14,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:17:14,408 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:17:14,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-03-20 13:17:14,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 13:17:14,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:17:14,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 61 conjunts are in the unsatisfiable core [2022-03-20 13:17:14,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:17:15,353 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:15,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:17:16,757 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:16,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819255104] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:17:16,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:17:16,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 32, 32] total 68 [2022-03-20 13:17:16,758 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:17:16,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [296959274] [2022-03-20 13:17:16,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [296959274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:17:16,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:17:16,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-03-20 13:17:16,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903090767] [2022-03-20 13:17:16,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:17:16,759 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-20 13:17:16,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:16,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-20 13:17:16,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=985, Invalid=3571, Unknown=0, NotChecked=0, Total=4556 [2022-03-20 13:17:16,760 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 36 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:18,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:17:18,656 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2022-03-20 13:17:18,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-20 13:17:18,657 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 36 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-20 13:17:18,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:17:18,658 INFO L225 Difference]: With dead ends: 155 [2022-03-20 13:17:18,658 INFO L226 Difference]: Without dead ends: 152 [2022-03-20 13:17:18,659 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1720, Invalid=7022, Unknown=0, NotChecked=0, Total=8742 [2022-03-20 13:17:18,659 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 87 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 3472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-20 13:17:18,659 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1118 Invalid, 3472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-20 13:17:18,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-03-20 13:17:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 149. [2022-03-20 13:17:18,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 145 states have (on average 1.006896551724138) internal successors, (146), 145 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:18,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 149 transitions. [2022-03-20 13:17:18,678 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 149 transitions. Word has length 143 [2022-03-20 13:17:18,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:17:18,678 INFO L478 AbstractCegarLoop]: Abstraction has 149 states and 149 transitions. [2022-03-20 13:17:18,678 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 36 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:18,678 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 149 transitions. [2022-03-20 13:17:18,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 13:17:18,679 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:17:18,679 INFO L499 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:17:18,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-03-20 13:17:18,887 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:18,888 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:17:18,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:17:18,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2139133562, now seen corresponding path program 39 times [2022-03-20 13:17:18,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:18,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [643307237] [2022-03-20 13:17:18,889 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:17:18,889 INFO L85 PathProgramCache]: Analyzing trace with hash 2139133562, now seen corresponding path program 40 times [2022-03-20 13:17:18,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:17:18,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541830361] [2022-03-20 13:17:18,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:17:18,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:17:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:19,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:17:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:19,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:19,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:17:19,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541830361] [2022-03-20 13:17:19,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541830361] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:17:19,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641198107] [2022-03-20 13:17:19,629 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 13:17:19,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:19,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:17:19,632 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:17:19,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-03-20 13:17:20,012 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 13:17:20,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:17:20,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 63 conjunts are in the unsatisfiable core [2022-03-20 13:17:20,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:17:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:20,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:17:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:21,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641198107] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:17:21,968 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:17:21,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 33, 33] total 70 [2022-03-20 13:17:21,969 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:17:21,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [643307237] [2022-03-20 13:17:21,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [643307237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:17:21,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:17:21,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-03-20 13:17:21,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42723355] [2022-03-20 13:17:21,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:17:21,970 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-20 13:17:21,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:21,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-20 13:17:21,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1019, Invalid=3811, Unknown=0, NotChecked=0, Total=4830 [2022-03-20 13:17:21,971 INFO L87 Difference]: Start difference. First operand 149 states and 149 transitions. Second operand has 38 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:24,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:17:24,149 INFO L93 Difference]: Finished difference Result 160 states and 160 transitions. [2022-03-20 13:17:24,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-20 13:17:24,149 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-20 13:17:24,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:17:24,150 INFO L225 Difference]: With dead ends: 160 [2022-03-20 13:17:24,150 INFO L226 Difference]: Without dead ends: 157 [2022-03-20 13:17:24,151 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1781, Invalid=7531, Unknown=0, NotChecked=0, Total=9312 [2022-03-20 13:17:24,151 INFO L913 BasicCegarLoop]: 40 mSDtfsCounter, 87 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 3827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-20 13:17:24,151 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1222 Invalid, 3827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-20 13:17:24,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-03-20 13:17:24,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2022-03-20 13:17:24,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 150 states have (on average 1.0066666666666666) internal successors, (151), 150 states have internal predecessors, (151), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:24,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2022-03-20 13:17:24,167 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 148 [2022-03-20 13:17:24,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:17:24,168 INFO L478 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2022-03-20 13:17:24,168 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:24,168 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2022-03-20 13:17:24,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-20 13:17:24,168 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:17:24,169 INFO L499 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:17:24,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-03-20 13:17:24,369 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-03-20 13:17:24,370 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:17:24,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:17:24,370 INFO L85 PathProgramCache]: Analyzing trace with hash 132411449, now seen corresponding path program 41 times [2022-03-20 13:17:24,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:24,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1234469543] [2022-03-20 13:17:24,371 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:17:24,371 INFO L85 PathProgramCache]: Analyzing trace with hash 132411449, now seen corresponding path program 42 times [2022-03-20 13:17:24,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:17:24,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74344661] [2022-03-20 13:17:24,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:17:24,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:17:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:17:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:25,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 1113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:25,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:17:25,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74344661] [2022-03-20 13:17:25,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74344661] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:17:25,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797402631] [2022-03-20 13:17:25,171 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 13:17:25,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:25,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:17:25,174 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:17:25,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-03-20 13:17:26,700 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-20 13:17:26,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:17:26,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 38 conjunts are in the unsatisfiable core [2022-03-20 13:17:26,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:17:27,363 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 13:17:27,363 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-03-20 13:17:27,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 60 proven. 83 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-03-20 13:17:27,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:17:30,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-03-20 13:17:30,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797402631] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:17:30,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:17:30,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 9, 9] total 53 [2022-03-20 13:17:30,790 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:17:30,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1234469543] [2022-03-20 13:17:30,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1234469543] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:17:30,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:17:30,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-03-20 13:17:30,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442117291] [2022-03-20 13:17:30,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:17:30,791 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-03-20 13:17:30,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:30,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-03-20 13:17:30,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2471, Unknown=0, NotChecked=0, Total=2756 [2022-03-20 13:17:30,792 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand has 39 states, 39 states have (on average 3.8461538461538463) internal successors, (150), 38 states have internal predecessors, (150), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:33,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:17:33,059 INFO L93 Difference]: Finished difference Result 165 states and 165 transitions. [2022-03-20 13:17:33,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-20 13:17:33,061 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.8461538461538463) internal successors, (150), 38 states have internal predecessors, (150), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-20 13:17:33,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:17:33,062 INFO L225 Difference]: With dead ends: 165 [2022-03-20 13:17:33,062 INFO L226 Difference]: Without dead ends: 162 [2022-03-20 13:17:33,063 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=533, Invalid=5947, Unknown=0, NotChecked=0, Total=6480 [2022-03-20 13:17:33,064 INFO L913 BasicCegarLoop]: 41 mSDtfsCounter, 91 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 4017 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 4077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 4017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-20 13:17:33,064 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 1287 Invalid, 4077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 4017 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-20 13:17:33,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-03-20 13:17:33,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 159. [2022-03-20 13:17:33,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 155 states have (on average 1.0064516129032257) internal successors, (156), 155 states have internal predecessors, (156), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:33,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 159 transitions. [2022-03-20 13:17:33,079 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 159 transitions. Word has length 153 [2022-03-20 13:17:33,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:17:33,079 INFO L478 AbstractCegarLoop]: Abstraction has 159 states and 159 transitions. [2022-03-20 13:17:33,079 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.8461538461538463) internal successors, (150), 38 states have internal predecessors, (150), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:33,079 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 159 transitions. [2022-03-20 13:17:33,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-20 13:17:33,080 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:17:33,080 INFO L499 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:17:33,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-03-20 13:17:33,286 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-03-20 13:17:33,287 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:17:33,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:17:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash -689056294, now seen corresponding path program 43 times [2022-03-20 13:17:33,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:33,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1542754610] [2022-03-20 13:17:33,288 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:17:33,288 INFO L85 PathProgramCache]: Analyzing trace with hash -689056294, now seen corresponding path program 44 times [2022-03-20 13:17:33,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:17:33,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366619535] [2022-03-20 13:17:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:17:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:17:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:34,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:17:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:34,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:34,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:17:34,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366619535] [2022-03-20 13:17:34,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366619535] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:17:34,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616602509] [2022-03-20 13:17:34,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:17:34,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:34,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:17:34,111 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:17:34,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-03-20 13:17:34,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 13:17:34,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:17:34,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 67 conjunts are in the unsatisfiable core [2022-03-20 13:17:34,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:17:35,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:35,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:17:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:36,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616602509] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:17:36,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:17:36,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 35, 35] total 74 [2022-03-20 13:17:36,833 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:17:36,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1542754610] [2022-03-20 13:17:36,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1542754610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:17:36,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:17:36,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-03-20 13:17:36,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504377927] [2022-03-20 13:17:36,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:17:36,834 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-03-20 13:17:36,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:36,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-03-20 13:17:36,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=4321, Unknown=0, NotChecked=0, Total=5402 [2022-03-20 13:17:36,835 INFO L87 Difference]: Start difference. First operand 159 states and 159 transitions. Second operand has 40 states, 40 states have (on average 3.875) internal successors, (155), 39 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:39,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:17:39,261 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2022-03-20 13:17:39,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-20 13:17:39,261 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.875) internal successors, (155), 39 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-20 13:17:39,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:17:39,262 INFO L225 Difference]: With dead ends: 170 [2022-03-20 13:17:39,262 INFO L226 Difference]: Without dead ends: 167 [2022-03-20 13:17:39,263 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 283 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1891, Invalid=8615, Unknown=0, NotChecked=0, Total=10506 [2022-03-20 13:17:39,263 INFO L913 BasicCegarLoop]: 42 mSDtfsCounter, 92 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 4217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 13:17:39,263 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 1331 Invalid, 4217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 13:17:39,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-20 13:17:39,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2022-03-20 13:17:39,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 160 states have (on average 1.00625) internal successors, (161), 160 states have internal predecessors, (161), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:39,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 164 transitions. [2022-03-20 13:17:39,283 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 164 transitions. Word has length 158 [2022-03-20 13:17:39,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:17:39,284 INFO L478 AbstractCegarLoop]: Abstraction has 164 states and 164 transitions. [2022-03-20 13:17:39,284 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.875) internal successors, (155), 39 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:39,284 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 164 transitions. [2022-03-20 13:17:39,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-20 13:17:39,285 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:17:39,285 INFO L499 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:17:39,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-03-20 13:17:39,489 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:39,490 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:17:39,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:17:39,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1907870937, now seen corresponding path program 45 times [2022-03-20 13:17:39,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:39,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [426437792] [2022-03-20 13:17:39,491 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:17:39,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1907870937, now seen corresponding path program 46 times [2022-03-20 13:17:39,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:17:39,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383250049] [2022-03-20 13:17:39,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:17:39,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:17:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:40,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:17:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:40,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:17:40,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383250049] [2022-03-20 13:17:40,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383250049] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:17:40,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195441128] [2022-03-20 13:17:40,358 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 13:17:40,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:40,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:17:40,359 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:17:40,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-03-20 13:17:40,789 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 13:17:40,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:17:40,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 69 conjunts are in the unsatisfiable core [2022-03-20 13:17:40,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:17:41,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:41,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:17:43,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:43,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195441128] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:17:43,070 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:17:43,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 36, 36] total 76 [2022-03-20 13:17:43,070 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:17:43,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [426437792] [2022-03-20 13:17:43,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [426437792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:17:43,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:17:43,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2022-03-20 13:17:43,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701715909] [2022-03-20 13:17:43,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:17:43,071 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-03-20 13:17:43,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:43,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-03-20 13:17:43,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1109, Invalid=4591, Unknown=0, NotChecked=0, Total=5700 [2022-03-20 13:17:43,072 INFO L87 Difference]: Start difference. First operand 164 states and 164 transitions. Second operand has 41 states, 41 states have (on average 3.902439024390244) internal successors, (160), 40 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:45,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:17:45,700 INFO L93 Difference]: Finished difference Result 175 states and 175 transitions. [2022-03-20 13:17:45,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-20 13:17:45,701 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.902439024390244) internal successors, (160), 40 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-03-20 13:17:45,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:17:45,702 INFO L225 Difference]: With dead ends: 175 [2022-03-20 13:17:45,702 INFO L226 Difference]: Without dead ends: 172 [2022-03-20 13:17:45,703 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 292 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1940, Invalid=9190, Unknown=0, NotChecked=0, Total=11130 [2022-03-20 13:17:45,704 INFO L913 BasicCegarLoop]: 43 mSDtfsCounter, 92 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 4794 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 4858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 4794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 13:17:45,704 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 1510 Invalid, 4858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 4794 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 13:17:45,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-03-20 13:17:45,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2022-03-20 13:17:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 165 states have (on average 1.006060606060606) internal successors, (166), 165 states have internal predecessors, (166), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 169 transitions. [2022-03-20 13:17:45,721 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 169 transitions. Word has length 163 [2022-03-20 13:17:45,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:17:45,721 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 169 transitions. [2022-03-20 13:17:45,721 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.902439024390244) internal successors, (160), 40 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:17:45,721 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 169 transitions. [2022-03-20 13:17:45,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-20 13:17:45,722 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:17:45,722 INFO L499 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:17:45,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-03-20 13:17:45,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:45,943 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:17:45,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:17:45,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1478795974, now seen corresponding path program 47 times [2022-03-20 13:17:45,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:17:45,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [697678722] [2022-03-20 13:17:45,945 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:17:45,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1478795974, now seen corresponding path program 48 times [2022-03-20 13:17:45,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:17:45,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747762411] [2022-03-20 13:17:45,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:17:45,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:17:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:46,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:17:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:17:46,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:17:46,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:17:46,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747762411] [2022-03-20 13:17:46,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747762411] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:17:46,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300498060] [2022-03-20 13:17:46,804 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 13:17:46,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:17:46,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:17:46,805 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:17:46,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-03-20 13:18:00,982 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-20 13:18:00,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:18:01,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 166 conjunts are in the unsatisfiable core [2022-03-20 13:18:01,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:18:50,337 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 13:18:50,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 41 select indices, 41 select index equivalence classes, 780 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 820 case distinctions, treesize of input 288 treesize of output 444 [2022-03-20 13:20:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 69 proven. 95 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2022-03-20 13:20:48,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:20:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2022-03-20 13:20:55,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300498060] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:20:55,061 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:20:55,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 23, 22] total 83 [2022-03-20 13:20:55,062 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:20:55,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [697678722] [2022-03-20 13:20:55,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [697678722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:20:55,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:20:55,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-03-20 13:20:55,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583884436] [2022-03-20 13:20:55,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:20:55,062 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-03-20 13:20:55,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:20:55,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-03-20 13:20:55,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=772, Invalid=6034, Unknown=0, NotChecked=0, Total=6806 [2022-03-20 13:20:55,063 INFO L87 Difference]: Start difference. First operand 169 states and 169 transitions. Second operand has 42 states, 42 states have (on average 3.9285714285714284) internal successors, (165), 41 states have internal predecessors, (165), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:20:58,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:20:58,316 INFO L93 Difference]: Finished difference Result 180 states and 180 transitions. [2022-03-20 13:20:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-20 13:20:58,316 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.9285714285714284) internal successors, (165), 41 states have internal predecessors, (165), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-03-20 13:20:58,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:20:58,317 INFO L225 Difference]: With dead ends: 180 [2022-03-20 13:20:58,317 INFO L226 Difference]: Without dead ends: 177 [2022-03-20 13:20:58,318 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 292 SyntacticMatches, 5 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2118 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=1050, Invalid=11832, Unknown=0, NotChecked=0, Total=12882 [2022-03-20 13:20:58,319 INFO L913 BasicCegarLoop]: 44 mSDtfsCounter, 96 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 4686 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 4752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 4686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 13:20:58,319 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 1478 Invalid, 4752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 4686 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 13:20:58,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-03-20 13:20:58,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2022-03-20 13:20:58,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 170 states have (on average 1.0058823529411764) internal successors, (171), 170 states have internal predecessors, (171), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:20:58,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2022-03-20 13:20:58,344 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 168 [2022-03-20 13:20:58,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:20:58,345 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2022-03-20 13:20:58,345 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.9285714285714284) internal successors, (165), 41 states have internal predecessors, (165), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:20:58,345 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2022-03-20 13:20:58,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 13:20:58,346 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:20:58,346 INFO L499 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:20:58,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-03-20 13:20:58,563 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-03-20 13:20:58,563 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:20:58,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:20:58,564 INFO L85 PathProgramCache]: Analyzing trace with hash 787997049, now seen corresponding path program 49 times [2022-03-20 13:20:58,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:20:58,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1994378175] [2022-03-20 13:20:58,564 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:20:58,564 INFO L85 PathProgramCache]: Analyzing trace with hash 787997049, now seen corresponding path program 50 times [2022-03-20 13:20:58,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:20:58,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290552825] [2022-03-20 13:20:58,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:20:58,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:20:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:20:59,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:20:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:20:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:20:59,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:20:59,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290552825] [2022-03-20 13:20:59,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290552825] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:20:59,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309524219] [2022-03-20 13:20:59,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:20:59,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:20:59,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:20:59,587 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:20:59,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-03-20 13:21:00,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 13:21:00,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:21:00,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 73 conjunts are in the unsatisfiable core [2022-03-20 13:21:00,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:21:00,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:21:00,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:21:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:21:02,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309524219] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:21:02,647 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:21:02,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 38, 38] total 80 [2022-03-20 13:21:02,647 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:21:02,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1994378175] [2022-03-20 13:21:02,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1994378175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:21:02,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:21:02,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-03-20 13:21:02,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601512649] [2022-03-20 13:21:02,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:21:02,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-20 13:21:02,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:02,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-20 13:21:02,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1158, Invalid=5162, Unknown=0, NotChecked=0, Total=6320 [2022-03-20 13:21:02,649 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand has 43 states, 43 states have (on average 3.953488372093023) internal successors, (170), 42 states have internal predecessors, (170), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:21:05,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:21:05,592 INFO L93 Difference]: Finished difference Result 185 states and 185 transitions. [2022-03-20 13:21:05,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-20 13:21:05,592 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.953488372093023) internal successors, (170), 42 states have internal predecessors, (170), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-20 13:21:05,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:21:05,593 INFO L225 Difference]: With dead ends: 185 [2022-03-20 13:21:05,593 INFO L226 Difference]: Without dead ends: 182 [2022-03-20 13:21:05,595 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 310 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2026, Invalid=10406, Unknown=0, NotChecked=0, Total=12432 [2022-03-20 13:21:05,595 INFO L913 BasicCegarLoop]: 45 mSDtfsCounter, 95 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 5233 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 5301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 5233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 13:21:05,595 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 1635 Invalid, 5301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 5233 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 13:21:05,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-03-20 13:21:05,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 179. [2022-03-20 13:21:05,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 175 states have (on average 1.0057142857142858) internal successors, (176), 175 states have internal predecessors, (176), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:21:05,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 179 transitions. [2022-03-20 13:21:05,626 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 179 transitions. Word has length 173 [2022-03-20 13:21:05,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:21:05,626 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 179 transitions. [2022-03-20 13:21:05,626 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.953488372093023) internal successors, (170), 42 states have internal predecessors, (170), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:21:05,626 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 179 transitions. [2022-03-20 13:21:05,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-03-20 13:21:05,627 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:21:05,627 INFO L499 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:21:05,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-03-20 13:21:05,843 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-03-20 13:21:05,843 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:21:05,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:21:05,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1687104666, now seen corresponding path program 51 times [2022-03-20 13:21:05,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:05,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1286529280] [2022-03-20 13:21:05,845 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:21:05,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1687104666, now seen corresponding path program 52 times [2022-03-20 13:21:05,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:21:05,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912427146] [2022-03-20 13:21:05,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:21:05,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:21:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:21:06,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:21:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:21:06,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 1703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:21:06,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:21:06,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912427146] [2022-03-20 13:21:06,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912427146] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:21:06,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783094060] [2022-03-20 13:21:06,835 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 13:21:06,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:21:06,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:21:06,836 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:21:06,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-03-20 13:21:07,320 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 13:21:07,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:21:07,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 75 conjunts are in the unsatisfiable core [2022-03-20 13:21:07,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:21:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 1703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:21:07,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:21:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 1703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:21:09,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783094060] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:21:09,913 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:21:09,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 39, 39] total 82 [2022-03-20 13:21:09,913 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:21:09,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1286529280] [2022-03-20 13:21:09,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1286529280] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:21:09,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:21:09,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-03-20 13:21:09,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557481329] [2022-03-20 13:21:09,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:21:09,913 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-03-20 13:21:09,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:09,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-03-20 13:21:09,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1179, Invalid=5463, Unknown=0, NotChecked=0, Total=6642 [2022-03-20 13:21:09,915 INFO L87 Difference]: Start difference. First operand 179 states and 179 transitions. Second operand has 44 states, 44 states have (on average 3.977272727272727) internal successors, (175), 43 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:21:12,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:21:12,929 INFO L93 Difference]: Finished difference Result 190 states and 190 transitions. [2022-03-20 13:21:12,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-20 13:21:12,929 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.977272727272727) internal successors, (175), 43 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-03-20 13:21:12,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:21:12,930 INFO L225 Difference]: With dead ends: 190 [2022-03-20 13:21:12,930 INFO L226 Difference]: Without dead ends: 187 [2022-03-20 13:21:12,931 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 319 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1353 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2063, Invalid=11047, Unknown=0, NotChecked=0, Total=13110 [2022-03-20 13:21:12,931 INFO L913 BasicCegarLoop]: 46 mSDtfsCounter, 101 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 5387 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 5457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 5387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 13:21:12,932 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 1672 Invalid, 5457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 5387 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 13:21:12,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-03-20 13:21:12,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 184. [2022-03-20 13:21:12,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 180 states have (on average 1.0055555555555555) internal successors, (181), 180 states have internal predecessors, (181), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:21:12,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 184 transitions. [2022-03-20 13:21:12,953 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 184 transitions. Word has length 178 [2022-03-20 13:21:12,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:21:12,953 INFO L478 AbstractCegarLoop]: Abstraction has 184 states and 184 transitions. [2022-03-20 13:21:12,953 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.977272727272727) internal successors, (175), 43 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:21:12,953 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 184 transitions. [2022-03-20 13:21:12,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-03-20 13:21:12,954 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:21:12,954 INFO L499 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:21:12,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2022-03-20 13:21:13,163 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-03-20 13:21:13,163 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:21:13,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:21:13,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1226747417, now seen corresponding path program 53 times [2022-03-20 13:21:13,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:13,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [150806486] [2022-03-20 13:21:13,165 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:21:13,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1226747417, now seen corresponding path program 54 times [2022-03-20 13:21:13,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:21:13,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615469088] [2022-03-20 13:21:13,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:21:13,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:21:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:21:14,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:21:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:21:14,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 0 proven. 1836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:21:14,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:21:14,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615469088] [2022-03-20 13:21:14,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615469088] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:21:14,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501459788] [2022-03-20 13:21:14,225 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 13:21:14,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:21:14,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:21:14,226 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:21:14,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-03-20 13:21:25,635 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-20 13:21:25,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:21:25,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 133 conjunts are in the unsatisfiable core [2022-03-20 13:21:25,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:21:39,000 INFO L356 Elim1Store]: treesize reduction 12, result has 91.9 percent of original size [2022-03-20 13:21:39,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 120 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 127 treesize of output 191 [2022-03-20 13:21:44,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 78 proven. 107 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-03-20 13:21:44,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:21:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-03-20 13:21:50,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501459788] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:21:50,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:21:50,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 25, 23] total 89 [2022-03-20 13:21:50,406 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:21:50,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [150806486] [2022-03-20 13:21:50,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [150806486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:21:50,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:21:50,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2022-03-20 13:21:50,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561835157] [2022-03-20 13:21:50,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:21:50,407 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-03-20 13:21:50,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:50,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-03-20 13:21:50,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=878, Invalid=6954, Unknown=0, NotChecked=0, Total=7832 [2022-03-20 13:21:50,408 INFO L87 Difference]: Start difference. First operand 184 states and 184 transitions. Second operand has 45 states, 45 states have (on average 4.0) internal successors, (180), 44 states have internal predecessors, (180), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:21:53,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:21:53,900 INFO L93 Difference]: Finished difference Result 195 states and 195 transitions. [2022-03-20 13:21:53,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-20 13:21:53,900 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 4.0) internal successors, (180), 44 states have internal predecessors, (180), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 183 [2022-03-20 13:21:53,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:21:53,901 INFO L225 Difference]: With dead ends: 195 [2022-03-20 13:21:53,901 INFO L226 Difference]: Without dead ends: 192 [2022-03-20 13:21:53,902 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 321 SyntacticMatches, 3 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2546 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1195, Invalid=13811, Unknown=0, NotChecked=0, Total=15006 [2022-03-20 13:21:53,902 INFO L913 BasicCegarLoop]: 47 mSDtfsCounter, 102 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 5686 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 5758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 5686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 13:21:53,902 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1758 Invalid, 5758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 5686 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 13:21:53,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-03-20 13:21:53,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2022-03-20 13:21:53,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 185 states have (on average 1.0054054054054054) internal successors, (186), 185 states have internal predecessors, (186), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:21:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 189 transitions. [2022-03-20 13:21:53,930 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 189 transitions. Word has length 183 [2022-03-20 13:21:53,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:21:53,930 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 189 transitions. [2022-03-20 13:21:53,931 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 4.0) internal successors, (180), 44 states have internal predecessors, (180), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:21:53,931 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 189 transitions. [2022-03-20 13:21:53,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-20 13:21:53,931 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:21:53,932 INFO L499 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:21:53,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-03-20 13:21:54,155 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-03-20 13:21:54,155 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:21:54,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:21:54,156 INFO L85 PathProgramCache]: Analyzing trace with hash -540064774, now seen corresponding path program 55 times [2022-03-20 13:21:54,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:54,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1639486818] [2022-03-20 13:21:54,157 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:21:54,157 INFO L85 PathProgramCache]: Analyzing trace with hash -540064774, now seen corresponding path program 56 times [2022-03-20 13:21:54,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:21:54,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620879975] [2022-03-20 13:21:54,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:21:54,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:21:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:21:55,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:21:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:21:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:21:55,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:21:55,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620879975] [2022-03-20 13:21:55,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620879975] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:21:55,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817291357] [2022-03-20 13:21:55,134 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:21:55,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:21:55,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:21:55,135 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:21:55,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-03-20 13:21:55,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 13:21:55,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:21:55,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1911 conjuncts, 79 conjunts are in the unsatisfiable core [2022-03-20 13:21:55,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:21:56,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:21:56,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:21:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:21:58,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817291357] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:21:58,550 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:21:58,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 41, 41] total 86 [2022-03-20 13:21:58,550 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:21:58,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1639486818] [2022-03-20 13:21:58,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1639486818] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:21:58,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:21:58,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-03-20 13:21:58,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847927805] [2022-03-20 13:21:58,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:21:58,551 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-03-20 13:21:58,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:21:58,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-03-20 13:21:58,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1214, Invalid=6096, Unknown=0, NotChecked=0, Total=7310 [2022-03-20 13:21:58,552 INFO L87 Difference]: Start difference. First operand 189 states and 189 transitions. Second operand has 46 states, 46 states have (on average 4.021739130434782) internal successors, (185), 45 states have internal predecessors, (185), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:22:01,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:22:01,867 INFO L93 Difference]: Finished difference Result 200 states and 200 transitions. [2022-03-20 13:22:01,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-20 13:22:01,867 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 4.021739130434782) internal successors, (185), 45 states have internal predecessors, (185), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-03-20 13:22:01,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:22:01,868 INFO L225 Difference]: With dead ends: 200 [2022-03-20 13:22:01,868 INFO L226 Difference]: Without dead ends: 197 [2022-03-20 13:22:01,869 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 337 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2125, Invalid=12395, Unknown=0, NotChecked=0, Total=14520 [2022-03-20 13:22:01,870 INFO L913 BasicCegarLoop]: 48 mSDtfsCounter, 101 mSDsluCounter, 1798 mSDsCounter, 0 mSdLazyCounter, 5993 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 6067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 13:22:01,870 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 1846 Invalid, 6067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 5993 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 13:22:01,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-03-20 13:22:01,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2022-03-20 13:22:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 190 states have (on average 1.0052631578947369) internal successors, (191), 190 states have internal predecessors, (191), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:22:01,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 194 transitions. [2022-03-20 13:22:01,918 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 194 transitions. Word has length 188 [2022-03-20 13:22:01,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:22:01,919 INFO L478 AbstractCegarLoop]: Abstraction has 194 states and 194 transitions. [2022-03-20 13:22:01,919 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.021739130434782) internal successors, (185), 45 states have internal predecessors, (185), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:22:01,919 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 194 transitions. [2022-03-20 13:22:01,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-03-20 13:22:01,920 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:22:01,920 INFO L499 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:22:01,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-03-20 13:22:02,131 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-03-20 13:22:02,131 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:22:02,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:22:02,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1188678983, now seen corresponding path program 57 times [2022-03-20 13:22:02,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:22:02,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1761210572] [2022-03-20 13:22:02,133 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:22:02,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1188678983, now seen corresponding path program 58 times [2022-03-20 13:22:02,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:22:02,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892219713] [2022-03-20 13:22:02,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:22:02,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:22:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:22:03,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:22:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:22:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:22:03,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:22:03,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892219713] [2022-03-20 13:22:03,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892219713] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:22:03,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228731138] [2022-03-20 13:22:03,155 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 13:22:03,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:22:03,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:22:03,156 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:22:03,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-03-20 13:22:03,651 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 13:22:03,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:22:03,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 81 conjunts are in the unsatisfiable core [2022-03-20 13:22:03,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:22:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:22:04,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:22:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:22:06,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228731138] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:22:06,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:22:06,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 42, 42] total 88 [2022-03-20 13:22:06,597 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:22:06,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1761210572] [2022-03-20 13:22:06,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1761210572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:22:06,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:22:06,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2022-03-20 13:22:06,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150420979] [2022-03-20 13:22:06,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:22:06,598 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-03-20 13:22:06,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:22:06,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-03-20 13:22:06,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1228, Invalid=6428, Unknown=0, NotChecked=0, Total=7656 [2022-03-20 13:22:06,600 INFO L87 Difference]: Start difference. First operand 194 states and 194 transitions. Second operand has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 46 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:22:10,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:22:10,075 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2022-03-20 13:22:10,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-20 13:22:10,075 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 46 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 193 [2022-03-20 13:22:10,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:22:10,076 INFO L225 Difference]: With dead ends: 205 [2022-03-20 13:22:10,076 INFO L226 Difference]: Without dead ends: 202 [2022-03-20 13:22:10,078 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 346 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1607 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2150, Invalid=13102, Unknown=0, NotChecked=0, Total=15252 [2022-03-20 13:22:10,078 INFO L913 BasicCegarLoop]: 49 mSDtfsCounter, 106 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 6306 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 6382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 6306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 13:22:10,078 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 1930 Invalid, 6382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 6306 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 13:22:10,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-03-20 13:22:10,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2022-03-20 13:22:10,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 195 states have (on average 1.005128205128205) internal successors, (196), 195 states have internal predecessors, (196), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:22:10,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 199 transitions. [2022-03-20 13:22:10,105 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 199 transitions. Word has length 193 [2022-03-20 13:22:10,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:22:10,106 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 199 transitions. [2022-03-20 13:22:10,106 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 46 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:22:10,106 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 199 transitions. [2022-03-20 13:22:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-03-20 13:22:10,107 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:22:10,107 INFO L499 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:22:10,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2022-03-20 13:22:10,307 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:22:10,307 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:22:10,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:22:10,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1394498726, now seen corresponding path program 59 times [2022-03-20 13:22:10,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:22:10,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [807490901] [2022-03-20 13:22:10,309 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:22:10,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1394498726, now seen corresponding path program 60 times [2022-03-20 13:22:10,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:22:10,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300605608] [2022-03-20 13:22:10,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:22:10,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:22:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:22:11,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:22:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:22:11,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 2265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:22:11,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:22:11,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300605608] [2022-03-20 13:22:11,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300605608] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:22:11,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82666623] [2022-03-20 13:22:11,448 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 13:22:11,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:22:11,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:22:11,449 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:22:11,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-03-20 13:22:26,622 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-20 13:22:26,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:22:26,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 156 conjunts are in the unsatisfiable core [2022-03-20 13:22:26,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:23:21,304 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 13:23:21,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 42 select indices, 42 select index equivalence classes, 820 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 861 case distinctions, treesize of input 295 treesize of output 455 [2022-03-20 13:25:17,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 87 proven. 119 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2022-03-20 13:25:17,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:25:24,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2022-03-20 13:25:24,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82666623] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:25:24,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:25:24,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 23, 21] total 88 [2022-03-20 13:25:24,603 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:25:24,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [807490901] [2022-03-20 13:25:24,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [807490901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:25:24,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:25:24,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-03-20 13:25:24,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490886069] [2022-03-20 13:25:24,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:25:24,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-20 13:25:24,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:25:24,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-20 13:25:24,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=769, Invalid=6887, Unknown=0, NotChecked=0, Total=7656 [2022-03-20 13:25:24,605 INFO L87 Difference]: Start difference. First operand 199 states and 199 transitions. Second operand has 48 states, 48 states have (on average 4.0625) internal successors, (195), 47 states have internal predecessors, (195), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:25:28,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:25:28,785 INFO L93 Difference]: Finished difference Result 210 states and 210 transitions. [2022-03-20 13:25:28,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-20 13:25:28,785 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 4.0625) internal successors, (195), 47 states have internal predecessors, (195), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-03-20 13:25:28,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:25:28,786 INFO L225 Difference]: With dead ends: 210 [2022-03-20 13:25:28,786 INFO L226 Difference]: Without dead ends: 207 [2022-03-20 13:25:28,787 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 353 SyntacticMatches, 5 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2310 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=1131, Invalid=14369, Unknown=0, NotChecked=0, Total=15500 [2022-03-20 13:25:28,788 INFO L913 BasicCegarLoop]: 50 mSDtfsCounter, 106 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 6629 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 6707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 6629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 13:25:28,788 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 2022 Invalid, 6707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 6629 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 13:25:28,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-03-20 13:25:28,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2022-03-20 13:25:28,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.005) internal successors, (201), 200 states have internal predecessors, (201), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:25:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 204 transitions. [2022-03-20 13:25:28,819 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 204 transitions. Word has length 198 [2022-03-20 13:25:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:25:28,819 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 204 transitions. [2022-03-20 13:25:28,819 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.0625) internal successors, (195), 47 states have internal predecessors, (195), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:25:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 204 transitions. [2022-03-20 13:25:28,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-20 13:25:28,820 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:25:28,820 INFO L499 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:25:28,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-03-20 13:25:29,021 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-03-20 13:25:29,021 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:25:29,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:25:29,021 INFO L85 PathProgramCache]: Analyzing trace with hash 126381913, now seen corresponding path program 61 times [2022-03-20 13:25:29,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:25:29,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1809038843] [2022-03-20 13:25:29,022 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:25:29,023 INFO L85 PathProgramCache]: Analyzing trace with hash 126381913, now seen corresponding path program 62 times [2022-03-20 13:25:29,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:25:29,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14763819] [2022-03-20 13:25:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:25:29,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:25:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:25:30,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:25:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:25:30,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:25:30,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:25:30,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14763819] [2022-03-20 13:25:30,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14763819] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:25:30,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68186233] [2022-03-20 13:25:30,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:25:30,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:25:30,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:25:30,113 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:25:30,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-03-20 13:25:30,646 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 13:25:30,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:25:30,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 2025 conjuncts, 85 conjunts are in the unsatisfiable core [2022-03-20 13:25:30,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:25:31,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:25:31,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:25:33,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:25:33,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68186233] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:25:33,813 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:25:33,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 44, 44] total 92 [2022-03-20 13:25:33,813 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:25:33,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1809038843] [2022-03-20 13:25:33,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1809038843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:25:33,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:25:33,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2022-03-20 13:25:33,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949034802] [2022-03-20 13:25:33,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:25:33,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-20 13:25:33,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:25:33,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-20 13:25:33,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1247, Invalid=7125, Unknown=0, NotChecked=0, Total=8372 [2022-03-20 13:25:33,824 INFO L87 Difference]: Start difference. First operand 204 states and 204 transitions. Second operand has 49 states, 49 states have (on average 4.081632653061225) internal successors, (200), 48 states have internal predecessors, (200), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:25:37,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:25:37,862 INFO L93 Difference]: Finished difference Result 215 states and 215 transitions. [2022-03-20 13:25:37,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-20 13:25:37,862 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 4.081632653061225) internal successors, (200), 48 states have internal predecessors, (200), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-03-20 13:25:37,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:25:37,863 INFO L225 Difference]: With dead ends: 215 [2022-03-20 13:25:37,863 INFO L226 Difference]: Without dead ends: 212 [2022-03-20 13:25:37,864 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 364 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1785 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2188, Invalid=14582, Unknown=0, NotChecked=0, Total=16770 [2022-03-20 13:25:37,864 INFO L913 BasicCegarLoop]: 51 mSDtfsCounter, 108 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 7117 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 7197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 7117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 13:25:37,864 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 2157 Invalid, 7197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 7117 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 13:25:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-03-20 13:25:37,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 209. [2022-03-20 13:25:37,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 205 states have (on average 1.0048780487804878) internal successors, (206), 205 states have internal predecessors, (206), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:25:37,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2022-03-20 13:25:37,886 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 203 [2022-03-20 13:25:37,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:25:37,887 INFO L478 AbstractCegarLoop]: Abstraction has 209 states and 209 transitions. [2022-03-20 13:25:37,887 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 4.081632653061225) internal successors, (200), 48 states have internal predecessors, (200), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:25:37,887 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 209 transitions. [2022-03-20 13:25:37,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-03-20 13:25:37,888 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:25:37,888 INFO L499 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:25:37,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-03-20 13:25:38,088 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:25:38,089 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:25:38,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:25:38,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2139900602, now seen corresponding path program 63 times [2022-03-20 13:25:38,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:25:38,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [461060175] [2022-03-20 13:25:38,090 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:25:38,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2139900602, now seen corresponding path program 64 times [2022-03-20 13:25:38,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:25:38,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097708384] [2022-03-20 13:25:38,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:25:38,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:25:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:25:39,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:25:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:25:39,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:25:39,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:25:39,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097708384] [2022-03-20 13:25:39,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097708384] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:25:39,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26192528] [2022-03-20 13:25:39,219 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-20 13:25:39,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:25:39,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:25:39,220 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:25:39,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-03-20 13:25:39,728 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-20 13:25:39,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:25:39,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 2063 conjuncts, 87 conjunts are in the unsatisfiable core [2022-03-20 13:25:39,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:25:40,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:25:40,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:25:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:25:43,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26192528] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:25:43,062 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:25:43,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 45, 45] total 94 [2022-03-20 13:25:43,062 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:25:43,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [461060175] [2022-03-20 13:25:43,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [461060175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:25:43,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:25:43,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-03-20 13:25:43,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446179174] [2022-03-20 13:25:43,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:25:43,063 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-20 13:25:43,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:25:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-20 13:25:43,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1253, Invalid=7489, Unknown=0, NotChecked=0, Total=8742 [2022-03-20 13:25:43,065 INFO L87 Difference]: Start difference. First operand 209 states and 209 transitions. Second operand has 50 states, 50 states have (on average 4.1) internal successors, (205), 49 states have internal predecessors, (205), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:25:47,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:25:47,370 INFO L93 Difference]: Finished difference Result 220 states and 220 transitions. [2022-03-20 13:25:47,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-20 13:25:47,370 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.1) internal successors, (205), 49 states have internal predecessors, (205), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 208 [2022-03-20 13:25:47,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:25:47,371 INFO L225 Difference]: With dead ends: 220 [2022-03-20 13:25:47,371 INFO L226 Difference]: Without dead ends: 217 [2022-03-20 13:25:47,373 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 373 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1876 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2201, Invalid=15355, Unknown=0, NotChecked=0, Total=17556 [2022-03-20 13:25:47,373 INFO L913 BasicCegarLoop]: 52 mSDtfsCounter, 111 mSDsluCounter, 2238 mSDsCounter, 0 mSdLazyCounter, 7619 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 7701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 7619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 13:25:47,373 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 2290 Invalid, 7701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 7619 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 13:25:47,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-03-20 13:25:47,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2022-03-20 13:25:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 210 states have (on average 1.0047619047619047) internal successors, (211), 210 states have internal predecessors, (211), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:25:47,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 214 transitions. [2022-03-20 13:25:47,409 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 214 transitions. Word has length 208 [2022-03-20 13:25:47,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:25:47,409 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 214 transitions. [2022-03-20 13:25:47,410 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.1) internal successors, (205), 49 states have internal predecessors, (205), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:25:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 214 transitions. [2022-03-20 13:25:47,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-20 13:25:47,411 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:25:47,411 INFO L499 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:25:47,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-03-20 13:25:47,627 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:25:47,627 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:25:47,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:25:47,628 INFO L85 PathProgramCache]: Analyzing trace with hash -331389959, now seen corresponding path program 65 times [2022-03-20 13:25:47,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:25:47,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [449102413] [2022-03-20 13:25:47,629 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:25:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash -331389959, now seen corresponding path program 66 times [2022-03-20 13:25:47,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:25:47,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484744334] [2022-03-20 13:25:47,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:25:47,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:25:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:25:49,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:25:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:25:49,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 99 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:25:49,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:25:49,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484744334] [2022-03-20 13:25:49,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484744334] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 13:25:49,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985090381] [2022-03-20 13:25:49,981 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-20 13:25:49,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:25:49,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:25:49,982 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 13:25:49,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-03-20 13:25:59,907 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-20 13:25:59,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:25:59,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 77 conjunts are in the unsatisfiable core [2022-03-20 13:25:59,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:26:02,285 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 13:26:02,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 26 [2022-03-20 13:26:02,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 96 proven. 131 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2022-03-20 13:26:02,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 13:26:09,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2022-03-20 13:26:09,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985090381] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 13:26:09,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 13:26:09,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 22, 20] total 90 [2022-03-20 13:26:09,967 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:26:09,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [449102413] [2022-03-20 13:26:09,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [449102413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:26:09,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:26:09,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-03-20 13:26:09,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117043083] [2022-03-20 13:26:09,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:26:09,967 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-03-20 13:26:09,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:26:09,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-03-20 13:26:09,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1318, Invalid=6692, Unknown=0, NotChecked=0, Total=8010 [2022-03-20 13:26:09,968 INFO L87 Difference]: Start difference. First operand 214 states and 214 transitions. Second operand has 52 states, 52 states have (on average 4.038461538461538) internal successors, (210), 51 states have internal predecessors, (210), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:26:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:26:12,606 INFO L93 Difference]: Finished difference Result 216 states and 216 transitions. [2022-03-20 13:26:12,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-20 13:26:12,607 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 4.038461538461538) internal successors, (210), 51 states have internal predecessors, (210), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-03-20 13:26:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:26:12,607 INFO L225 Difference]: With dead ends: 216 [2022-03-20 13:26:12,607 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 13:26:12,608 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 387 SyntacticMatches, 3 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1367, Invalid=7005, Unknown=0, NotChecked=0, Total=8372 [2022-03-20 13:26:12,608 INFO L913 BasicCegarLoop]: 86 mSDtfsCounter, 21 mSDsluCounter, 3583 mSDsCounter, 0 mSdLazyCounter, 5847 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 5853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 13:26:12,608 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 3669 Invalid, 5853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 5847 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 13:26:12,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 13:26:12,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 13:26:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-20 13:26:12,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 13:26:12,609 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 213 [2022-03-20 13:26:12,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:26:12,609 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 13:26:12,609 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.038461538461538) internal successors, (210), 51 states have internal predecessors, (210), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:26:12,609 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 13:26:12,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 13:26:12,611 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 13:26:12,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-03-20 13:26:12,812 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-03-20 13:26:12,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-20 13:26:18,728 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2022-03-20 13:26:18,729 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2022-03-20 13:26:18,729 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2022-03-20 13:26:18,729 INFO L878 garLoopResultBuilder]: At program point L225(lines 225 604) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,729 INFO L878 garLoopResultBuilder]: At program point L192(lines 192 622) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,729 INFO L878 garLoopResultBuilder]: At program point L448(lines 408 481) the Hoare annotation is: (let ((.cse2 (+ (div ~Id_MCDC_93~0 4294967296) 1))) (let ((.cse0 (< 0 .cse2)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 33) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 26) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 14) .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= ~Id_MCDC_93~0 10) .cse0 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 21) (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= ~Id_MCDC_93~0 37) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1 (<= ~Id_MCDC_93~0 18)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= ~Id_MCDC_93~0 41) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (not (<= .cse2 0)) .cse1) (and (<= ~Id_MCDC_93~0 12) (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 23) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) (<= ~Id_MCDC_93~0 34) .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) (<= ~Id_MCDC_93~0 22) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse1) (not (<= |old(~Id_MCDC_93~0)| 9)) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= ~Id_MCDC_93~0 36) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 9)) (and (<= ~Id_MCDC_93~0 16) (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 15) (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 40) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40))))) [2022-03-20 13:26:18,729 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 136 636) the Hoare annotation is: true [2022-03-20 13:26:18,730 INFO L878 garLoopResultBuilder]: At program point L184(lines 184 628) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,730 INFO L878 garLoopResultBuilder]: At program point L440(lines 440 453) the Hoare annotation is: (let ((.cse3 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse2 (+ .cse3 1))) (let ((.cse0 (< 0 .cse2)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) (<= ~Id_MCDC_93~0 28) .cse1) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= ~Id_MCDC_93~0 23) (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse1) (and (<= ~Id_MCDC_93~0 34) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 40) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) (<= ~Id_MCDC_93~0 14) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse1 (<= ~Id_MCDC_93~0 18)) (and (<= ~Id_MCDC_93~0 37) (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= ~Id_MCDC_93~0 32) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 16) .cse0 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 22) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 21) .cse1) (and .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) (<= ~Id_MCDC_93~0 39) .cse1) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 41) (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (not (<= .cse2 0)) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= ~Id_MCDC_93~0 26) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and (<= ~Id_MCDC_93~0 33) .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) .cse0 (<= ~Id_MCDC_93~0 35) (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) (<= ~Id_MCDC_93~0 13) .cse1) (let ((.cse4 (* 4294967296 .cse3))) (and (<= .cse3 0) (< (+ .cse4 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (= |main_#t~mem55| 0) (<= ~Id_MCDC_93~0 (+ .cse4 41)) .cse1)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) (<= ~Id_MCDC_93~0 10) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 36) .cse1) (and .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 15) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 12) .cse0 (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1))))) [2022-03-20 13:26:18,730 INFO L878 garLoopResultBuilder]: At program point L407(lines 407 485) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,730 INFO L878 garLoopResultBuilder]: At program point L374(lines 374 503) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,730 INFO L878 garLoopResultBuilder]: At program point L465(lines 465 473) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,730 INFO L878 garLoopResultBuilder]: At program point L366(lines 366 509) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,730 INFO L878 garLoopResultBuilder]: At program point L234(lines 234 599) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,730 INFO L878 garLoopResultBuilder]: At program point L251(lines 251 587) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,730 INFO L878 garLoopResultBuilder]: At program point L218(lines 218 605) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,731 INFO L878 garLoopResultBuilder]: At program point L210(lines 210 611) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,731 INFO L878 garLoopResultBuilder]: At program point L433(lines 433 454) the Hoare annotation is: (let ((.cse2 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse4 (+ .cse2 1))) (let ((.cse0 (< 0 .cse4)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) (<= ~Id_MCDC_93~0 28) .cse1) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= ~Id_MCDC_93~0 23) (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse1) (and (<= ~Id_MCDC_93~0 34) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 40) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (let ((.cse3 (* 4294967296 .cse2))) (and (<= .cse2 0) (< (+ .cse3 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (<= ~Id_MCDC_93~0 (+ .cse3 41)) .cse1)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) (<= ~Id_MCDC_93~0 14) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse1 (<= ~Id_MCDC_93~0 18)) (and (<= ~Id_MCDC_93~0 37) (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= ~Id_MCDC_93~0 32) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 16) .cse0 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 22) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 21) .cse1) (and .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) (<= ~Id_MCDC_93~0 39) .cse1) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 41) (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (not (<= .cse4 0)) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= ~Id_MCDC_93~0 26) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and (<= ~Id_MCDC_93~0 33) .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) .cse0 (<= ~Id_MCDC_93~0 35) (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) (<= ~Id_MCDC_93~0 10) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 36) .cse1) (and .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 15) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 12) .cse0 (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1))))) [2022-03-20 13:26:18,731 INFO L878 garLoopResultBuilder]: At program point L400(lines 400 486) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,731 INFO L878 garLoopResultBuilder]: At program point L425(lines 425 475) the Hoare annotation is: (let ((.cse2 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse4 (+ .cse2 1))) (let ((.cse0 (< 0 .cse4)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 33) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 26) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 14) .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= ~Id_MCDC_93~0 10) .cse0 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 21) (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= ~Id_MCDC_93~0 37) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1 (<= ~Id_MCDC_93~0 18)) (let ((.cse3 (* 4294967296 .cse2))) (and (<= .cse2 0) (< (+ .cse3 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (not (<= .cse4 0)) (<= ~Id_MCDC_93~0 (+ .cse3 41)) .cse1)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= ~Id_MCDC_93~0 12) (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 23) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) (<= ~Id_MCDC_93~0 34) .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) (<= ~Id_MCDC_93~0 22) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse1) (not (<= |old(~Id_MCDC_93~0)| 9)) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= ~Id_MCDC_93~0 36) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 9)) (and (<= ~Id_MCDC_93~0 16) (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 15) (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 40) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)))))) [2022-03-20 13:26:18,731 INFO L878 garLoopResultBuilder]: At program point L392(lines 392 492) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,731 INFO L878 garLoopResultBuilder]: At program point L260(lines 260 582) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,731 INFO L878 garLoopResultBuilder]: At program point L277(lines 277 570) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L244(lines 244 588) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L467(line 467) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,732 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 136 636) the Hoare annotation is: true [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L236(lines 236 594) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 467) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L286(lines 286 565) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point mainENTRY(lines 136 636) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(~__tmp_1075_2~0.base)| ~__tmp_1075_2~0.base)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L303(lines 303 553) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L270(lines 270 571) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L262(lines 262 577) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L312(lines 312 548) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L329(lines 329 536) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L296(lines 296 554) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L164(lines 164 635) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(~__tmp_1075_2~0.base)| ~__tmp_1075_2~0.base)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L288(lines 288 560) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-03-20 13:26:18,732 INFO L878 garLoopResultBuilder]: At program point L338(lines 338 531) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,733 INFO L878 garLoopResultBuilder]: At program point L355(lines 355 519) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,733 INFO L878 garLoopResultBuilder]: At program point L322(lines 322 537) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,733 INFO L878 garLoopResultBuilder]: At program point L314(lines 314 543) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,733 INFO L878 garLoopResultBuilder]: At program point L182(lines 182 633) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,733 INFO L878 garLoopResultBuilder]: At program point L364(lines 364 514) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,733 INFO L878 garLoopResultBuilder]: At program point L199(lines 199 621) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,733 INFO L878 garLoopResultBuilder]: At program point L381(lines 381 502) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,733 INFO L878 garLoopResultBuilder]: At program point L348(lines 348 520) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,733 INFO L878 garLoopResultBuilder]: At program point L340(lines 340 526) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,733 INFO L878 garLoopResultBuilder]: At program point L208(lines 208 616) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,733 INFO L878 garLoopResultBuilder]: At program point L423(lines 423 480) the Hoare annotation is: (let ((.cse2 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse4 (+ .cse2 1))) (let ((.cse0 (< 0 .cse4)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 33) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 26) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 14) .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= ~Id_MCDC_93~0 10) .cse0 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 21) (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= ~Id_MCDC_93~0 37) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1 (<= ~Id_MCDC_93~0 18)) (let ((.cse3 (* 4294967296 .cse2))) (and (<= .cse2 0) (< (+ .cse3 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (not (<= .cse4 0)) (<= ~Id_MCDC_93~0 (+ .cse3 41)) .cse1)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= ~Id_MCDC_93~0 12) (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 23) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) (<= ~Id_MCDC_93~0 34) .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) (<= ~Id_MCDC_93~0 22) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse1) (not (<= |old(~Id_MCDC_93~0)| 9)) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= ~Id_MCDC_93~0 36) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 9)) (and (<= ~Id_MCDC_93~0 16) (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 15) (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 40) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)))))) [2022-03-20 13:26:18,734 INFO L878 garLoopResultBuilder]: At program point L390(lines 390 497) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-20 13:26:18,734 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 9)) [2022-03-20 13:26:18,734 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(~__tmp_1075_2~0.base)| ~__tmp_1075_2~0.base) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-20 13:26:18,734 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 9)) [2022-03-20 13:26:18,734 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-03-20 13:26:18,734 INFO L878 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 9)) [2022-03-20 13:26:18,734 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-20 13:26:18,734 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-03-20 13:26:18,736 INFO L719 BasicCegarLoop]: Path program histogram: [66, 2] [2022-03-20 13:26:18,737 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 13:26:18,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 01:26:18 BoogieIcfgContainer [2022-03-20 13:26:18,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 13:26:18,771 INFO L158 Benchmark]: Toolchain (without parser) took 636497.32ms. Allocated memory was 204.5MB in the beginning and 553.6MB in the end (delta: 349.2MB). Free memory was 154.9MB in the beginning and 389.4MB in the end (delta: -234.6MB). Peak memory consumption was 351.1MB. Max. memory is 8.0GB. [2022-03-20 13:26:18,771 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 204.5MB. Free memory was 172.8MB in the beginning and 172.7MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 13:26:18,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 526.10ms. Allocated memory was 204.5MB in the beginning and 249.6MB in the end (delta: 45.1MB). Free memory was 154.6MB in the beginning and 216.4MB in the end (delta: -61.8MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. [2022-03-20 13:26:18,772 INFO L158 Benchmark]: Boogie Preprocessor took 87.91ms. Allocated memory is still 249.6MB. Free memory was 216.4MB in the beginning and 211.6MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-03-20 13:26:18,772 INFO L158 Benchmark]: RCFGBuilder took 844.52ms. Allocated memory is still 249.6MB. Free memory was 211.6MB in the beginning and 206.3MB in the end (delta: 5.3MB). Peak memory consumption was 73.3MB. Max. memory is 8.0GB. [2022-03-20 13:26:18,772 INFO L158 Benchmark]: TraceAbstraction took 635032.78ms. Allocated memory was 249.6MB in the beginning and 553.6MB in the end (delta: 304.1MB). Free memory was 205.7MB in the beginning and 389.4MB in the end (delta: -183.7MB). Peak memory consumption was 357.4MB. Max. memory is 8.0GB. [2022-03-20 13:26:18,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 204.5MB. Free memory was 172.8MB in the beginning and 172.7MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 526.10ms. Allocated memory was 204.5MB in the beginning and 249.6MB in the end (delta: 45.1MB). Free memory was 154.6MB in the beginning and 216.4MB in the end (delta: -61.8MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 87.91ms. Allocated memory is still 249.6MB. Free memory was 216.4MB in the beginning and 211.6MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 844.52ms. Allocated memory is still 249.6MB. Free memory was 211.6MB in the beginning and 206.3MB in the end (delta: 5.3MB). Peak memory consumption was 73.3MB. Max. memory is 8.0GB. * TraceAbstraction took 635032.78ms. Allocated memory was 249.6MB in the beginning and 553.6MB in the end (delta: 304.1MB). Free memory was 205.7MB in the beginning and 389.4MB in the end (delta: -183.7MB). Peak memory consumption was 357.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 467]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 635.0s, OverallIterations: 34, TraceHistogramMax: 34, PathProgramHistogramMax: 66, EmptinessCheckTime: 0.0s, AutomataDifference: 67.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2708 SdHoareTripleChecker+Valid, 44.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2708 mSDsluCounter, 38918 SdHoareTripleChecker+Invalid, 37.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37601 mSDsCounter, 1676 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112705 IncrementalHoareTripleChecker+Invalid, 114381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1676 mSolverCounterUnsat, 1317 mSDtfsCounter, 112705 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10715 GetRequests, 7893 SyntacticMatches, 43 SemanticMatches, 2779 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28646 ImplicationChecksByTransitivity, 94.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=214occurred in iteration=33, InterpolantAutomatonStates: 1070, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 34 MinimizatonAttempts, 99 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 55 PreInvPairs, 248 NumberOfFragments, 5823 HoareAnnotationTreeSize, 55 FomulaSimplifications, 10311 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 55 FomulaSimplificationsInter, 5978 FormulaSimplificationTreeSizeReductionInter, 5.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((Id_MCDC_93 <= 33 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 33) && 33 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 30) && Id_MCDC_89__Id_MCDC_96 <= 30) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 30 <= Id_MCDC_89__Id_MCDC_96)) || ((((26 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 26) && Id_MCDC_89__Id_MCDC_96 <= 26) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((17 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 17) && Id_MCDC_93 <= 17) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 14 && 0 < Id_MCDC_93 / 4294967296 + 1) && 14 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 14) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 38 && 0 < Id_MCDC_93 / 4294967296 + 1) && 38 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 38) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 10 && 0 < Id_MCDC_93 / 4294967296 + 1) && 10 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 10) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 27 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 27) && Id_MCDC_89__Id_MCDC_96 <= 27) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 28 && 0 < Id_MCDC_93 / 4294967296 + 1) && 28 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 28) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 32 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 32)) || \old(Id_MCDC_93) / 4294967296 + 1 <= 0) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_89__Id_MCDC_96 <= 25) && 25 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 25) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 20 && 20 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 20) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 21) && 21 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 21) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 37 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 37) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 37 <= Id_MCDC_89__Id_MCDC_96)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 24 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 24) && Id_MCDC_93 <= 24) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((18 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 18) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 <= 18)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_89__Id_MCDC_96 <= 29) && 29 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 <= 29)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_89__Id_MCDC_96 <= 39) && Id_MCDC_93 <= 39) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 39 <= Id_MCDC_89__Id_MCDC_96)) || ((((Id_MCDC_93 <= 41 && 41 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 41) && !(Id_MCDC_93 / 4294967296 + 1 <= 0)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 12 && 12 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 12) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((23 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 23) && Id_MCDC_89__Id_MCDC_96 <= 23) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 31 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 31) && 31 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 34 && Id_MCDC_93 <= 34) && 0 < Id_MCDC_93 / 4294967296 + 1) && 34 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((22 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 22) && Id_MCDC_93 <= 22) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((35 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 35) && Id_MCDC_93 <= 35) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || !(\old(Id_MCDC_93) <= 9)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 11) && 11 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 11) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((19 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 19) && Id_MCDC_89__Id_MCDC_96 <= 19) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 13 && 0 < Id_MCDC_93 / 4294967296 + 1) && 13 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 13) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 36 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 36) && 36 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 9 && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 9 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 9)) || ((((Id_MCDC_93 <= 16 && 16 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 16) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 15) && 15 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 15) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 40 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 40) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 40) - ProcedureContractResult [Line: 136]: Procedure Contract for main Derived contract for procedure main: 1 RESULT: Ultimate proved your program to be correct! [2022-03-20 13:26:18,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...