/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-memsafety/count_down_unsafe.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:07:29,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:07:29,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:07:29,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 11:07:29,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:07:29,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:07:29,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:07:29,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 11:07:29,237 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:07:29,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:07:29,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:07:29,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:07:29,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:07:29,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:07:29,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:07:29,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:07:29,243 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:07:29,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:07:29,245 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:07:29,245 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:07:29,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:07:29,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:07:29,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:07:29,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:07:29,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:07:29,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:07:29,247 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:07:29,247 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:07:29,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:07:29,247 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:07:29,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:07:29,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:07:29,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:07:29,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:07:29,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:07:29,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:07:29,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:07:29,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:07:29,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:07:29,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:07:29,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:07:29,251 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:07:29,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:07:29,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:07:29,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:07:29,774 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:07:29,775 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:07:29,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/count_down_unsafe.i [2022-10-16 11:07:29,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22aba609/34e2f4bde6584848b3da78074fac7ade/FLAG58f15a801 [2022-10-16 11:07:30,785 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:07:30,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/count_down_unsafe.i [2022-10-16 11:07:30,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22aba609/34e2f4bde6584848b3da78074fac7ade/FLAG58f15a801 [2022-10-16 11:07:31,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22aba609/34e2f4bde6584848b3da78074fac7ade [2022-10-16 11:07:31,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:07:31,054 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:07:31,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:07:31,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:07:31,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:07:31,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@521c707f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31, skipping insertion in model container [2022-10-16 11:07:31,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:07:31,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:07:31,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:07:31,559 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:07:31,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:07:31,703 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:07:31,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31 WrapperNode [2022-10-16 11:07:31,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:07:31,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:07:31,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:07:31,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:07:31,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,790 INFO L138 Inliner]: procedures = 115, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2022-10-16 11:07:31,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:07:31,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:07:31,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:07:31,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:07:31,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,819 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:07:31,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:07:31,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:07:31,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:07:31,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (1/1) ... [2022-10-16 11:07:31,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:07:31,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:07:31,870 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) [2022-10-16 11:07:31,893 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 [2022-10-16 11:07:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:07:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:07:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:07:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:07:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:07:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:07:32,089 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:07:32,092 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:07:32,355 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:07:32,363 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:07:32,364 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 11:07:32,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:07:32 BoogieIcfgContainer [2022-10-16 11:07:32,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:07:32,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:07:32,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:07:32,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:07:32,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:07:31" (1/3) ... [2022-10-16 11:07:32,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddfe1f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:07:32, skipping insertion in model container [2022-10-16 11:07:32,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:31" (2/3) ... [2022-10-16 11:07:32,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddfe1f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:07:32, skipping insertion in model container [2022-10-16 11:07:32,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:07:32" (3/3) ... [2022-10-16 11:07:32,389 INFO L112 eAbstractionObserver]: Analyzing ICFG count_down_unsafe.i [2022-10-16 11:07:32,447 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:07:32,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 11:07:32,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:07:32,561 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@131f57c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:07:32,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 11:07:32,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 29 states have internal predecessors, (38), 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) [2022-10-16 11:07:32,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:07:32,599 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:07:32,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:07:32,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:07:32,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:07:32,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1173278156, now seen corresponding path program 1 times [2022-10-16 11:07:32,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:07:32,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366813179] [2022-10-16 11:07:32,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:32,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:07:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:33,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:33,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:07:33,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366813179] [2022-10-16 11:07:33,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366813179] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:07:33,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:07:33,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:07:33,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337455798] [2022-10-16 11:07:33,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:07:33,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:07:33,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:07:33,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:07:33,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:07:33,172 INFO L87 Difference]: Start difference. First operand has 30 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 29 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:07:33,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:07:33,243 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2022-10-16 11:07:33,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:07:33,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 11:07:33,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:07:33,257 INFO L225 Difference]: With dead ends: 72 [2022-10-16 11:07:33,257 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 11:07:33,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:07:33,271 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:07:33,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 87 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:07:33,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 11:07:33,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 32. [2022-10-16 11:07:33,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 31 states have internal predecessors, (38), 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) [2022-10-16 11:07:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2022-10-16 11:07:33,316 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 10 [2022-10-16 11:07:33,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:07:33,317 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2022-10-16 11:07:33,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:07:33,318 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2022-10-16 11:07:33,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 11:07:33,318 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:07:33,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:07:33,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:07:33,319 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:07:33,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:07:33,320 INFO L85 PathProgramCache]: Analyzing trace with hash -2055656224, now seen corresponding path program 1 times [2022-10-16 11:07:33,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:07:33,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814502069] [2022-10-16 11:07:33,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:33,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:07:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:33,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:33,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:07:33,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814502069] [2022-10-16 11:07:33,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814502069] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:07:33,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:07:33,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:07:33,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030412471] [2022-10-16 11:07:33,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:07:33,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:07:33,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:07:33,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:07:33,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:07:33,438 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:07:33,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:07:33,494 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2022-10-16 11:07:33,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:07:33,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 11:07:33,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:07:33,496 INFO L225 Difference]: With dead ends: 45 [2022-10-16 11:07:33,496 INFO L226 Difference]: Without dead ends: 32 [2022-10-16 11:07:33,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:07:33,499 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:07:33,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 44 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:07:33,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-16 11:07:33,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-10-16 11:07:33,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 31 states have internal predecessors, (37), 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) [2022-10-16 11:07:33,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-10-16 11:07:33,507 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 11 [2022-10-16 11:07:33,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:07:33,508 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-10-16 11:07:33,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:07:33,508 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-10-16 11:07:33,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:07:33,509 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:07:33,509 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:07:33,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:07:33,510 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:07:33,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:07:33,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1367959373, now seen corresponding path program 1 times [2022-10-16 11:07:33,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:07:33,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253737722] [2022-10-16 11:07:33,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:33,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:07:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:33,725 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:33,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:07:33,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253737722] [2022-10-16 11:07:33,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253737722] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:07:33,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8185349] [2022-10-16 11:07:33,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:33,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:33,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:07:33,730 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) [2022-10-16 11:07:33,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 11:07:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:33,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:07:33,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:07:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:34,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:07:34,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8185349] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:07:34,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:07:34,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-10-16 11:07:34,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620267597] [2022-10-16 11:07:34,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:07:34,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:07:34,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:07:34,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:07:34,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 11:07:34,087 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-10-16 11:07:34,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:07:34,188 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2022-10-16 11:07:34,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:07:34,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 11:07:34,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:07:34,192 INFO L225 Difference]: With dead ends: 75 [2022-10-16 11:07:34,192 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 11:07:34,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:07:34,198 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 40 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:07:34,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 63 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:07:34,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 11:07:34,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 41. [2022-10-16 11:07:34,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 40 states have internal predecessors, (47), 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) [2022-10-16 11:07:34,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2022-10-16 11:07:34,220 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 16 [2022-10-16 11:07:34,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:07:34,222 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2022-10-16 11:07:34,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-10-16 11:07:34,223 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2022-10-16 11:07:34,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:07:34,225 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:07:34,225 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:07:34,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 11:07:34,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:34,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:07:34,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:07:34,442 INFO L85 PathProgramCache]: Analyzing trace with hash 356842123, now seen corresponding path program 1 times [2022-10-16 11:07:34,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:07:34,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138773046] [2022-10-16 11:07:34,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:34,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:07:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:34,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:07:34,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138773046] [2022-10-16 11:07:34,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138773046] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:07:34,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118373780] [2022-10-16 11:07:34,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:34,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:34,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:07:34,695 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) [2022-10-16 11:07:34,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 11:07:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:34,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:07:34,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:07:34,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:34,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:07:34,901 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:34,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118373780] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:07:34,901 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:07:34,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:07:34,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714001833] [2022-10-16 11:07:34,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:07:34,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:07:34,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:07:34,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:07:34,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:07:34,905 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 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) [2022-10-16 11:07:35,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:07:35,111 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2022-10-16 11:07:35,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:07:35,112 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 11:07:35,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:07:35,113 INFO L225 Difference]: With dead ends: 102 [2022-10-16 11:07:35,114 INFO L226 Difference]: Without dead ends: 101 [2022-10-16 11:07:35,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:07:35,116 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 68 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:07:35,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 166 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:07:35,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-16 11:07:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 58. [2022-10-16 11:07:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 52 states have (on average 1.3846153846153846) internal successors, (72), 57 states have internal predecessors, (72), 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) [2022-10-16 11:07:35,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2022-10-16 11:07:35,128 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 16 [2022-10-16 11:07:35,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:07:35,128 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2022-10-16 11:07:35,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 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) [2022-10-16 11:07:35,129 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2022-10-16 11:07:35,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 11:07:35,130 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:07:35,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:07:35,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 11:07:35,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 11:07:35,345 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:07:35,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:07:35,346 INFO L85 PathProgramCache]: Analyzing trace with hash -586704153, now seen corresponding path program 1 times [2022-10-16 11:07:35,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:07:35,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740271048] [2022-10-16 11:07:35,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:35,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:07:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:35,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:35,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:07:35,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740271048] [2022-10-16 11:07:35,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740271048] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:07:35,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497467743] [2022-10-16 11:07:35,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:35,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:35,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:07:35,857 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) [2022-10-16 11:07:35,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 11:07:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:35,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 11:07:35,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:07:36,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-10-16 11:07:36,138 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 11:07:36,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:36,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:07:36,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-10-16 11:07:36,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-10-16 11:07:36,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:36,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497467743] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:07:36,280 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:07:36,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 6] total 18 [2022-10-16 11:07:36,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64931161] [2022-10-16 11:07:36,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:07:36,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 11:07:36,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:07:36,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 11:07:36,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:07:36,283 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 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) [2022-10-16 11:07:36,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:07:36,796 INFO L93 Difference]: Finished difference Result 137 states and 161 transitions. [2022-10-16 11:07:36,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 11:07:36,797 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 11:07:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:07:36,800 INFO L225 Difference]: With dead ends: 137 [2022-10-16 11:07:36,800 INFO L226 Difference]: Without dead ends: 125 [2022-10-16 11:07:36,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=234, Invalid=956, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 11:07:36,803 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 173 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:07:36,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 195 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:07:36,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-10-16 11:07:36,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 77. [2022-10-16 11:07:36,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 76 states have internal predecessors, (93), 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) [2022-10-16 11:07:36,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 93 transitions. [2022-10-16 11:07:36,822 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 93 transitions. Word has length 17 [2022-10-16 11:07:36,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:07:36,823 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 93 transitions. [2022-10-16 11:07:36,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 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) [2022-10-16 11:07:36,823 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 93 transitions. [2022-10-16 11:07:36,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 11:07:36,824 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:07:36,825 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:07:36,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 11:07:37,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:37,039 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:07:37,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:07:37,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1822796010, now seen corresponding path program 1 times [2022-10-16 11:07:37,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:07:37,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793712931] [2022-10-16 11:07:37,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:37,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:07:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:37,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:07:37,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793712931] [2022-10-16 11:07:37,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793712931] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:07:37,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175928607] [2022-10-16 11:07:37,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:37,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:37,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:07:37,121 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) [2022-10-16 11:07:37,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 11:07:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:37,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:07:37,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:07:37,215 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:37,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:07:37,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175928607] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:07:37,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:07:37,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:07:37,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453963740] [2022-10-16 11:07:37,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:07:37,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:07:37,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:07:37,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:07:37,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:07:37,222 INFO L87 Difference]: Start difference. First operand 77 states and 93 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:07:37,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:07:37,283 INFO L93 Difference]: Finished difference Result 77 states and 93 transitions. [2022-10-16 11:07:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:07:37,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 11:07:37,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:07:37,286 INFO L225 Difference]: With dead ends: 77 [2022-10-16 11:07:37,287 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 11:07:37,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:07:37,291 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 23 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:07:37,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 80 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:07:37,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 11:07:37,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-10-16 11:07:37,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 71 states have (on average 1.267605633802817) internal successors, (90), 75 states have internal predecessors, (90), 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) [2022-10-16 11:07:37,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 90 transitions. [2022-10-16 11:07:37,312 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 90 transitions. Word has length 17 [2022-10-16 11:07:37,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:07:37,313 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 90 transitions. [2022-10-16 11:07:37,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:07:37,313 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 90 transitions. [2022-10-16 11:07:37,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 11:07:37,314 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:07:37,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:07:37,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 11:07:37,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:37,529 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:07:37,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:07:37,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1007961198, now seen corresponding path program 1 times [2022-10-16 11:07:37,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:07:37,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676297437] [2022-10-16 11:07:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:37,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:07:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:37,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:07:37,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:07:37,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676297437] [2022-10-16 11:07:37,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676297437] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:07:37,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:07:37,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:07:37,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978763820] [2022-10-16 11:07:37,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:07:37,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:07:37,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:07:37,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:07:37,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:07:37,579 INFO L87 Difference]: Start difference. First operand 76 states and 90 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:07:37,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:07:37,614 INFO L93 Difference]: Finished difference Result 91 states and 107 transitions. [2022-10-16 11:07:37,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:07:37,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 11:07:37,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:07:37,616 INFO L225 Difference]: With dead ends: 91 [2022-10-16 11:07:37,616 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 11:07:37,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:07:37,618 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:07:37,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 64 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:07:37,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 11:07:37,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2022-10-16 11:07:37,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 86 states have internal predecessors, (105), 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) [2022-10-16 11:07:37,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 105 transitions. [2022-10-16 11:07:37,632 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 105 transitions. Word has length 18 [2022-10-16 11:07:37,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:07:37,632 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 105 transitions. [2022-10-16 11:07:37,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:07:37,633 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 105 transitions. [2022-10-16 11:07:37,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 11:07:37,634 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:07:37,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:07:37,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 11:07:37,635 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:07:37,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:07:37,635 INFO L85 PathProgramCache]: Analyzing trace with hash -749794030, now seen corresponding path program 1 times [2022-10-16 11:07:37,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:07:37,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137181226] [2022-10-16 11:07:37,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:37,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:07:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:07:37,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:07:37,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137181226] [2022-10-16 11:07:37,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137181226] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:07:37,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:07:37,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:07:37,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642203606] [2022-10-16 11:07:37,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:07:37,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:07:37,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:07:37,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:07:37,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:07:37,693 INFO L87 Difference]: Start difference. First operand 87 states and 105 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:07:37,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:07:37,722 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2022-10-16 11:07:37,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:07:37,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 11:07:37,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:07:37,724 INFO L225 Difference]: With dead ends: 87 [2022-10-16 11:07:37,724 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 11:07:37,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:07:37,726 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:07:37,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 59 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:07:37,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 11:07:37,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-10-16 11:07:37,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2560975609756098) internal successors, (103), 85 states have internal predecessors, (103), 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) [2022-10-16 11:07:37,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 103 transitions. [2022-10-16 11:07:37,739 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 103 transitions. Word has length 18 [2022-10-16 11:07:37,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:07:37,739 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 103 transitions. [2022-10-16 11:07:37,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:07:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 103 transitions. [2022-10-16 11:07:37,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 11:07:37,741 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:07:37,741 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:07:37,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 11:07:37,742 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:07:37,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:07:37,742 INFO L85 PathProgramCache]: Analyzing trace with hash 267126232, now seen corresponding path program 1 times [2022-10-16 11:07:37,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:07:37,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631117970] [2022-10-16 11:07:37,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:37,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:07:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:37,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:07:37,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:07:37,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631117970] [2022-10-16 11:07:37,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631117970] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:07:37,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713692447] [2022-10-16 11:07:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:37,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:37,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:07:37,826 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) [2022-10-16 11:07:37,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 11:07:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:37,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:07:37,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:07:37,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:07:37,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:07:37,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713692447] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:07:37,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:07:37,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-10-16 11:07:37,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523183464] [2022-10-16 11:07:37,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:07:37,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:07:37,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:07:37,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:07:37,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 11:07:37,957 INFO L87 Difference]: Start difference. First operand 86 states and 103 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2022-10-16 11:07:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:07:38,023 INFO L93 Difference]: Finished difference Result 114 states and 134 transitions. [2022-10-16 11:07:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:07:38,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 11:07:38,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:07:38,024 INFO L225 Difference]: With dead ends: 114 [2022-10-16 11:07:38,024 INFO L226 Difference]: Without dead ends: 72 [2022-10-16 11:07:38,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:07:38,026 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 15 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:07:38,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 65 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:07:38,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-10-16 11:07:38,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-10-16 11:07:38,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 71 states have internal predecessors, (87), 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) [2022-10-16 11:07:38,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions. [2022-10-16 11:07:38,036 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 23 [2022-10-16 11:07:38,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:07:38,036 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 87 transitions. [2022-10-16 11:07:38,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2022-10-16 11:07:38,037 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2022-10-16 11:07:38,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 11:07:38,037 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:07:38,038 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:07:38,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 11:07:38,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:38,254 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:07:38,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:07:38,255 INFO L85 PathProgramCache]: Analyzing trace with hash 689828058, now seen corresponding path program 1 times [2022-10-16 11:07:38,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:07:38,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294893102] [2022-10-16 11:07:38,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:38,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:07:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:38,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:38,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:07:38,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294893102] [2022-10-16 11:07:38,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294893102] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:07:38,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841428642] [2022-10-16 11:07:38,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:38,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:38,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:07:38,371 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) [2022-10-16 11:07:38,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 11:07:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:38,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:07:38,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:07:38,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:38,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:07:38,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:38,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841428642] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:07:38,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:07:38,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 11:07:38,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270364738] [2022-10-16 11:07:38,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:07:38,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:07:38,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:07:38,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:07:38,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:07:38,607 INFO L87 Difference]: Start difference. First operand 72 states and 87 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 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) [2022-10-16 11:07:38,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:07:38,765 INFO L93 Difference]: Finished difference Result 94 states and 112 transitions. [2022-10-16 11:07:38,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 11:07:38,765 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 11:07:38,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:07:38,766 INFO L225 Difference]: With dead ends: 94 [2022-10-16 11:07:38,766 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 11:07:38,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-10-16 11:07:38,768 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 44 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:07:38,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 121 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:07:38,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 11:07:38,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 61. [2022-10-16 11:07:38,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 60 states have internal predecessors, (74), 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) [2022-10-16 11:07:38,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 74 transitions. [2022-10-16 11:07:38,776 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 74 transitions. Word has length 23 [2022-10-16 11:07:38,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:07:38,776 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 74 transitions. [2022-10-16 11:07:38,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 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) [2022-10-16 11:07:38,777 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 74 transitions. [2022-10-16 11:07:38,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 11:07:38,778 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:07:38,778 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:07:38,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 11:07:38,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:38,992 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:07:38,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:07:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1258885808, now seen corresponding path program 1 times [2022-10-16 11:07:38,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:07:38,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105438859] [2022-10-16 11:07:38,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:38,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:07:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:39,423 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:39,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:07:39,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105438859] [2022-10-16 11:07:39,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105438859] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:07:39,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731631033] [2022-10-16 11:07:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:07:39,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:07:39,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:07:39,425 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) [2022-10-16 11:07:39,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 11:07:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:07:39,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 11:07:39,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:07:39,544 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:07:39,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:07:39,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:07:39,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 11:07:39,736 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:07:39,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:07:41,871 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_16| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_16|)) (forall ((v_ArrVal_92 Int)) (< (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_16| 4)) v_ArrVal_92) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))) is different from false [2022-10-16 11:07:43,703 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2022-10-16 11:07:43,710 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2022-10-16 11:07:43,783 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-10-16 11:07:43,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731631033] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:07:43,784 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:07:43,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 9] total 26 [2022-10-16 11:07:43,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881455405] [2022-10-16 11:07:43,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:07:43,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 11:07:43,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:07:43,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 11:07:43,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=4, NotChecked=46, Total=650 [2022-10-16 11:07:43,787 INFO L87 Difference]: Start difference. First operand 61 states and 74 transitions. Second operand has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 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) [2022-10-16 11:07:51,821 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (= 0 (select .cse0 0)) (= |c_ULTIMATE.start_main_~val~0#1| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_16| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_16|)) (forall ((v_ArrVal_92 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_16| 4)) v_ArrVal_92) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))) (= (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) 0) (= |c_ULTIMATE.start_main_#t~post4#1| 0) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:07:53,826 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (< (select .cse0 |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649) (forall ((|v_ULTIMATE.start_main_~i~0#1_16| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_16|)) (forall ((v_ArrVal_92 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_16| 4)) v_ArrVal_92) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:07:55,832 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (= 0 (select .cse0 0)) (forall ((|v_ULTIMATE.start_main_~i~0#1_16| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_16|)) (forall ((v_ArrVal_92 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_16| 4)) v_ArrVal_92) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))) (= |c_ULTIMATE.start_main_#t~post4#1| 0) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:07:57,836 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (< (select .cse0 |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649) (forall ((|v_ULTIMATE.start_main_~i~0#1_16| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_16|)) (forall ((v_ArrVal_92 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_16| 4)) v_ArrVal_92) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))))) is different from false [2022-10-16 11:08:02,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:08:02,453 INFO L93 Difference]: Finished difference Result 180 states and 213 transitions. [2022-10-16 11:08:02,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 11:08:02,454 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 11:08:02,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:08:02,455 INFO L225 Difference]: With dead ends: 180 [2022-10-16 11:08:02,456 INFO L226 Difference]: Without dead ends: 158 [2022-10-16 11:08:02,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=218, Invalid=1108, Unknown=26, NotChecked=370, Total=1722 [2022-10-16 11:08:02,458 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 126 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 126 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:08:02,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 247 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 273 Invalid, 0 Unknown, 126 Unchecked, 0.2s Time] [2022-10-16 11:08:02,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-10-16 11:08:02,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 78. [2022-10-16 11:08:02,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 77 states have internal predecessors, (93), 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) [2022-10-16 11:08:02,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 93 transitions. [2022-10-16 11:08:02,469 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 93 transitions. Word has length 23 [2022-10-16 11:08:02,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:08:02,470 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 93 transitions. [2022-10-16 11:08:02,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 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) [2022-10-16 11:08:02,470 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2022-10-16 11:08:02,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 11:08:02,471 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:08:02,471 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:08:02,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 11:08:02,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:08:02,673 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:08:02,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:08:02,674 INFO L85 PathProgramCache]: Analyzing trace with hash -948124959, now seen corresponding path program 2 times [2022-10-16 11:08:02,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:08:02,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548933949] [2022-10-16 11:08:02,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:02,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:08:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:03,066 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:08:03,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:08:03,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548933949] [2022-10-16 11:08:03,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548933949] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:08:03,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226723814] [2022-10-16 11:08:03,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:08:03,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:08:03,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:08:03,071 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) [2022-10-16 11:08:03,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 11:08:03,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:08:03,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:08:03,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 11:08:03,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:08:03,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:08:03,476 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 11:08:03,477 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 21 treesize of output 10 [2022-10-16 11:08:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:08:03,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:08:03,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-10-16 11:08:03,620 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-10-16 11:08:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:08:03,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226723814] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:08:03,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:08:03,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 24 [2022-10-16 11:08:03,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323682244] [2022-10-16 11:08:03,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:08:03,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 11:08:03,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:08:03,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 11:08:03,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2022-10-16 11:08:03,678 INFO L87 Difference]: Start difference. First operand 78 states and 93 transitions. Second operand has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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) [2022-10-16 11:08:04,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:08:04,337 INFO L93 Difference]: Finished difference Result 167 states and 197 transitions. [2022-10-16 11:08:04,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-16 11:08:04,338 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 11:08:04,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:08:04,340 INFO L225 Difference]: With dead ends: 167 [2022-10-16 11:08:04,340 INFO L226 Difference]: Without dead ends: 153 [2022-10-16 11:08:04,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=258, Invalid=1548, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 11:08:04,342 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 86 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 94 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:08:04,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 294 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 394 Invalid, 0 Unknown, 94 Unchecked, 0.3s Time] [2022-10-16 11:08:04,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-10-16 11:08:04,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 112. [2022-10-16 11:08:04,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 108 states have (on average 1.212962962962963) internal successors, (131), 111 states have internal predecessors, (131), 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) [2022-10-16 11:08:04,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 131 transitions. [2022-10-16 11:08:04,357 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 131 transitions. Word has length 29 [2022-10-16 11:08:04,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:08:04,358 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 131 transitions. [2022-10-16 11:08:04,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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) [2022-10-16 11:08:04,358 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 131 transitions. [2022-10-16 11:08:04,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 11:08:04,359 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:08:04,359 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:08:04,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 11:08:04,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 11:08:04,574 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:08:04,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:08:04,575 INFO L85 PathProgramCache]: Analyzing trace with hash -379067209, now seen corresponding path program 2 times [2022-10-16 11:08:04,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:08:04,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129822357] [2022-10-16 11:08:04,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:08:04,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:08:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:08:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:08:05,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:08:05,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129822357] [2022-10-16 11:08:05,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129822357] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:08:05,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520152821] [2022-10-16 11:08:05,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:08:05,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:08:05,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:08:05,064 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) [2022-10-16 11:08:05,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 11:08:05,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:08:05,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:08:05,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 11:08:05,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:08:05,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:08:05,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:08:05,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:08:05,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:08:05,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:08:05,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 11:08:05,438 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:08:05,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:08:07,584 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_22| Int)) (or (forall ((v_ArrVal_127 Int)) (< (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)) (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_22|)))) is different from false [2022-10-16 11:08:12,147 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_23| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_23|)) (forall ((v_ArrVal_126 Int) (|v_ULTIMATE.start_main_~i~0#1_22| Int) (v_ArrVal_127 Int)) (or (< (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_23| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_126) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_22| (+ |v_ULTIMATE.start_main_~i~0#1_23| 1)))))) is different from false [2022-10-16 11:08:18,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2022-10-16 11:08:18,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 258 [2022-10-16 11:08:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 1 times theorem prover too weak. 0 trivial. 6 not checked. [2022-10-16 11:08:18,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520152821] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:08:18,657 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:08:18,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 33 [2022-10-16 11:08:18,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508113721] [2022-10-16 11:08:18,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:08:18,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 11:08:18,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:08:18,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 11:08:18,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=768, Unknown=13, NotChecked=118, Total=1056 [2022-10-16 11:08:18,660 INFO L87 Difference]: Start difference. First operand 112 states and 131 transitions. Second operand has 33 states, 33 states have (on average 2.3636363636363638) internal successors, (78), 33 states have internal predecessors, (78), 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) [2022-10-16 11:08:23,966 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_#t~post4#1| 1)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (= 0 (select .cse0 0)) (= |c_ULTIMATE.start_main_~val~0#1| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_23| Int)) (or (not (<= .cse1 |v_ULTIMATE.start_main_~i~0#1_23|)) (forall ((v_ArrVal_126 Int) (|v_ULTIMATE.start_main_~i~0#1_22| Int) (v_ArrVal_127 Int)) (or (< (select (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_23| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_126) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_22| (+ |v_ULTIMATE.start_main_~i~0#1_23| 1)))))) (forall ((|v_ULTIMATE.start_main_~i~0#1_22| Int)) (or (forall ((v_ArrVal_127 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)) (not (<= .cse1 |v_ULTIMATE.start_main_~i~0#1_22|)))) (= (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) 0) (= |c_ULTIMATE.start_main_#t~post4#1| 0) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:08:58,043 WARN L233 SmtUtils]: Spent 26.05s on a formula simplification. DAG size of input: 51 DAG size of output: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 11:09:00,046 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_#t~post4#1| 1))) (and (= 0 (select .cse0 0)) (forall ((|v_ULTIMATE.start_main_~i~0#1_23| Int)) (or (not (<= .cse1 |v_ULTIMATE.start_main_~i~0#1_23|)) (forall ((v_ArrVal_126 Int) (|v_ULTIMATE.start_main_~i~0#1_22| Int) (v_ArrVal_127 Int)) (or (< (select (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_23| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_126) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_22| (+ |v_ULTIMATE.start_main_~i~0#1_23| 1)))))) (forall ((|v_ULTIMATE.start_main_~i~0#1_22| Int)) (or (forall ((v_ArrVal_127 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)) (not (<= .cse1 |v_ULTIMATE.start_main_~i~0#1_22|)))) (= |c_ULTIMATE.start_main_#t~post4#1| 0) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:09:02,051 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_#t~post4#1| 1))) (and (< (select .cse0 |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649) (forall ((|v_ULTIMATE.start_main_~i~0#1_23| Int)) (or (not (<= .cse1 |v_ULTIMATE.start_main_~i~0#1_23|)) (forall ((v_ArrVal_126 Int) (|v_ULTIMATE.start_main_~i~0#1_22| Int) (v_ArrVal_127 Int)) (or (< (select (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_23| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_126) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_22| (+ |v_ULTIMATE.start_main_~i~0#1_23| 1)))))) (forall ((|v_ULTIMATE.start_main_~i~0#1_22| Int)) (or (forall ((v_ArrVal_127 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)) (not (<= .cse1 |v_ULTIMATE.start_main_~i~0#1_22|)))))) is different from false [2022-10-16 11:09:04,086 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (div (* (- 1) |c_ULTIMATE.start_main_~arr~0#1.offset|) 4) 1)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_#t~post4#1| 1))) (and (= 0 (select .cse0 0)) (<= .cse1 |c_ULTIMATE.start_main_~i~0#1|) (<= .cse1 |c_ULTIMATE.start_main_#t~post4#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_23| Int)) (or (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_23|)) (forall ((v_ArrVal_126 Int) (|v_ULTIMATE.start_main_~i~0#1_22| Int) (v_ArrVal_127 Int)) (or (< (select (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_23| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_126) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_22| (+ |v_ULTIMATE.start_main_~i~0#1_23| 1)))))) (forall ((|v_ULTIMATE.start_main_~i~0#1_22| Int)) (or (forall ((v_ArrVal_127 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)) (not (<= .cse2 |v_ULTIMATE.start_main_~i~0#1_22|)))) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:09:20,786 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_#t~post4#1| 1))) (and (= 0 (select .cse0 0)) (<= (+ (div (* (- 1) |c_ULTIMATE.start_main_~arr~0#1.offset|) 4) 1) |c_ULTIMATE.start_main_#t~post4#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_23| Int)) (or (not (<= .cse1 |v_ULTIMATE.start_main_~i~0#1_23|)) (forall ((v_ArrVal_126 Int) (|v_ULTIMATE.start_main_~i~0#1_22| Int) (v_ArrVal_127 Int)) (or (< (select (store (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_23| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_126) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649) (< |v_ULTIMATE.start_main_~i~0#1_22| (+ |v_ULTIMATE.start_main_~i~0#1_23| 1)))))) (forall ((|v_ULTIMATE.start_main_~i~0#1_22| Int)) (or (forall ((v_ArrVal_127 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)) (not (<= .cse1 |v_ULTIMATE.start_main_~i~0#1_22|)))) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:09:22,790 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (< (select .cse0 |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649) (forall ((|v_ULTIMATE.start_main_~i~0#1_22| Int)) (or (forall ((v_ArrVal_127 Int)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_22| 4)) v_ArrVal_127) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)) (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_22|)))))) is different from false [2022-10-16 11:09:36,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:09:36,359 INFO L93 Difference]: Finished difference Result 225 states and 264 transitions. [2022-10-16 11:09:36,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 11:09:36,360 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.3636363636363638) internal successors, (78), 33 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 11:09:36,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:09:36,361 INFO L225 Difference]: With dead ends: 225 [2022-10-16 11:09:36,362 INFO L226 Difference]: Without dead ends: 203 [2022-10-16 11:09:36,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 90.5s TimeCoverageRelationStatistics Valid=315, Invalid=1481, Unknown=42, NotChecked=712, Total=2550 [2022-10-16 11:09:36,364 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 150 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 239 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:09:36,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 286 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 220 Invalid, 0 Unknown, 239 Unchecked, 0.2s Time] [2022-10-16 11:09:36,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-10-16 11:09:36,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 134. [2022-10-16 11:09:36,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 130 states have (on average 1.2230769230769232) internal successors, (159), 133 states have internal predecessors, (159), 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) [2022-10-16 11:09:36,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 159 transitions. [2022-10-16 11:09:36,383 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 159 transitions. Word has length 29 [2022-10-16 11:09:36,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:09:36,384 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 159 transitions. [2022-10-16 11:09:36,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.3636363636363638) internal successors, (78), 33 states have internal predecessors, (78), 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) [2022-10-16 11:09:36,384 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 159 transitions. [2022-10-16 11:09:36,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 11:09:36,385 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:09:36,385 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:09:36,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 11:09:36,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 11:09:36,587 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:09:36,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:09:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash 672895704, now seen corresponding path program 1 times [2022-10-16 11:09:36,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:09:36,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772890554] [2022-10-16 11:09:36,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:09:36,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:09:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:09:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:09:36,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:09:36,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772890554] [2022-10-16 11:09:36,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772890554] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:09:36,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864250642] [2022-10-16 11:09:36,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:09:36,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:09:36,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:09:36,653 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) [2022-10-16 11:09:36,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 11:09:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:09:36,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:09:36,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:09:36,758 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:09:36,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:09:36,796 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:09:36,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864250642] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:09:36,796 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:09:36,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:09:36,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329538302] [2022-10-16 11:09:36,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:09:36,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:09:36,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:09:36,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:09:36,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:09:36,799 INFO L87 Difference]: Start difference. First operand 134 states and 159 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 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) [2022-10-16 11:09:36,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:09:36,925 INFO L93 Difference]: Finished difference Result 175 states and 207 transitions. [2022-10-16 11:09:36,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:09:36,926 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 11:09:36,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:09:36,928 INFO L225 Difference]: With dead ends: 175 [2022-10-16 11:09:36,928 INFO L226 Difference]: Without dead ends: 174 [2022-10-16 11:09:36,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:09:36,930 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 45 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:09:36,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 153 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:09:36,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-10-16 11:09:36,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 166. [2022-10-16 11:09:36,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 162 states have (on average 1.2469135802469136) internal successors, (202), 165 states have internal predecessors, (202), 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) [2022-10-16 11:09:36,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 202 transitions. [2022-10-16 11:09:36,953 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 202 transitions. Word has length 30 [2022-10-16 11:09:36,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:09:36,954 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 202 transitions. [2022-10-16 11:09:36,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 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) [2022-10-16 11:09:36,954 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 202 transitions. [2022-10-16 11:09:36,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 11:09:36,955 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:09:36,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:09:36,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 11:09:37,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 11:09:37,170 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:09:37,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:09:37,171 INFO L85 PathProgramCache]: Analyzing trace with hash -615069557, now seen corresponding path program 1 times [2022-10-16 11:09:37,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:09:37,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600146918] [2022-10-16 11:09:37,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:09:37,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:09:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:09:37,231 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:09:37,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:09:37,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600146918] [2022-10-16 11:09:37,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600146918] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:09:37,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777426476] [2022-10-16 11:09:37,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:09:37,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:09:37,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:09:37,233 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) [2022-10-16 11:09:37,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 11:09:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:09:37,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:09:37,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:09:37,323 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:09:37,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:09:37,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777426476] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:09:37,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:09:37,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:09:37,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5983503] [2022-10-16 11:09:37,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:09:37,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:09:37,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:09:37,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:09:37,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:09:37,325 INFO L87 Difference]: Start difference. First operand 166 states and 202 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-10-16 11:09:37,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:09:37,379 INFO L93 Difference]: Finished difference Result 167 states and 202 transitions. [2022-10-16 11:09:37,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:09:37,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-16 11:09:37,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:09:37,381 INFO L225 Difference]: With dead ends: 167 [2022-10-16 11:09:37,381 INFO L226 Difference]: Without dead ends: 166 [2022-10-16 11:09:37,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:09:37,383 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:09:37,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 55 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:09:37,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-10-16 11:09:37,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 165. [2022-10-16 11:09:37,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 162 states have (on average 1.228395061728395) internal successors, (199), 164 states have internal predecessors, (199), 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) [2022-10-16 11:09:37,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 199 transitions. [2022-10-16 11:09:37,406 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 199 transitions. Word has length 31 [2022-10-16 11:09:37,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:09:37,407 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 199 transitions. [2022-10-16 11:09:37,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-10-16 11:09:37,407 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 199 transitions. [2022-10-16 11:09:37,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 11:09:37,408 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:09:37,408 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 11:09:37,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 11:09:37,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 11:09:37,623 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:09:37,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:09:37,624 INFO L85 PathProgramCache]: Analyzing trace with hash -401146410, now seen corresponding path program 2 times [2022-10-16 11:09:37,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:09:37,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643073325] [2022-10-16 11:09:37,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:09:37,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:09:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:09:37,761 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:09:37,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:09:37,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643073325] [2022-10-16 11:09:37,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643073325] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:09:37,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361981782] [2022-10-16 11:09:37,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:09:37,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:09:37,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:09:37,764 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) [2022-10-16 11:09:37,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 11:09:37,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:09:37,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:09:37,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:09:37,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:09:37,907 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 11:09:37,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:09:37,969 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 11:09:37,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361981782] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:09:37,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:09:37,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 11:09:37,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586526222] [2022-10-16 11:09:37,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:09:37,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 11:09:37,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:09:37,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 11:09:37,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 11:09:37,972 INFO L87 Difference]: Start difference. First operand 165 states and 199 transitions. Second operand has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 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) [2022-10-16 11:09:38,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:09:38,219 INFO L93 Difference]: Finished difference Result 400 states and 491 transitions. [2022-10-16 11:09:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:09:38,220 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 11:09:38,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:09:38,222 INFO L225 Difference]: With dead ends: 400 [2022-10-16 11:09:38,222 INFO L226 Difference]: Without dead ends: 399 [2022-10-16 11:09:38,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 11:09:38,223 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 214 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:09:38,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 144 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:09:38,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-10-16 11:09:38,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 150. [2022-10-16 11:09:38,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 148 states have (on average 1.2094594594594594) internal successors, (179), 149 states have internal predecessors, (179), 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) [2022-10-16 11:09:38,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 179 transitions. [2022-10-16 11:09:38,250 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 179 transitions. Word has length 34 [2022-10-16 11:09:38,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:09:38,251 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 179 transitions. [2022-10-16 11:09:38,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 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) [2022-10-16 11:09:38,251 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 179 transitions. [2022-10-16 11:09:38,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 11:09:38,252 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:09:38,252 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:09:38,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 11:09:38,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 11:09:38,468 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:09:38,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:09:38,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1249757778, now seen corresponding path program 3 times [2022-10-16 11:09:38,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:09:38,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26373573] [2022-10-16 11:09:38,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:09:38,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:09:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:09:38,664 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:09:38,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:09:38,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26373573] [2022-10-16 11:09:38,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26373573] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:09:38,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837650475] [2022-10-16 11:09:38,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 11:09:38,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:09:38,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:09:38,670 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) [2022-10-16 11:09:38,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 11:09:38,722 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 11:09:38,722 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:09:38,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 11:09:38,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:09:38,868 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:09:38,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:09:39,007 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:09:39,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837650475] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:09:39,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:09:39,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 11:09:39,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004372286] [2022-10-16 11:09:39,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:09:39,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 11:09:39,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:09:39,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 11:09:39,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:09:39,010 INFO L87 Difference]: Start difference. First operand 150 states and 179 transitions. Second operand has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2022-10-16 11:09:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:09:39,237 INFO L93 Difference]: Finished difference Result 196 states and 235 transitions. [2022-10-16 11:09:39,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 11:09:39,238 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 11:09:39,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:09:39,239 INFO L225 Difference]: With dead ends: 196 [2022-10-16 11:09:39,239 INFO L226 Difference]: Without dead ends: 125 [2022-10-16 11:09:39,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 52 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2022-10-16 11:09:39,241 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 73 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:09:39,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 133 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:09:39,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-10-16 11:09:39,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 110. [2022-10-16 11:09:39,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 1.2314814814814814) internal successors, (133), 109 states have internal predecessors, (133), 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) [2022-10-16 11:09:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2022-10-16 11:09:39,258 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 35 [2022-10-16 11:09:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:09:39,258 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2022-10-16 11:09:39,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 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) [2022-10-16 11:09:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2022-10-16 11:09:39,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 11:09:39,259 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:09:39,259 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:09:39,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 11:09:39,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 11:09:39,474 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:09:39,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:09:39,474 INFO L85 PathProgramCache]: Analyzing trace with hash -163466328, now seen corresponding path program 4 times [2022-10-16 11:09:39,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:09:39,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675089244] [2022-10-16 11:09:39,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:09:39,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:09:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:09:39,819 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:09:39,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:09:39,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675089244] [2022-10-16 11:09:39,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675089244] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:09:39,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255670243] [2022-10-16 11:09:39,820 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 11:09:39,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:09:39,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:09:39,821 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) [2022-10-16 11:09:39,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 11:09:39,878 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 11:09:39,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:09:39,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 11:09:39,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:09:39,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:09:40,102 INFO L356 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-10-16 11:09:40,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2022-10-16 11:09:40,344 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 11:09:40,345 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 21 treesize of output 10 [2022-10-16 11:09:40,363 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:09:40,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:10:03,292 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_36| Int) (v_ArrVal_207 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_36| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_36| 4)) v_ArrVal_207) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4)) 1))) is different from false [2022-10-16 11:10:03,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2022-10-16 11:10:03,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 122 [2022-10-16 11:10:03,411 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-10-16 11:10:03,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255670243] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:10:03,412 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:10:03,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 30 [2022-10-16 11:10:03,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970962509] [2022-10-16 11:10:03,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:10:03,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 11:10:03,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:10:03,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 11:10:03,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=694, Unknown=9, NotChecked=54, Total=870 [2022-10-16 11:10:03,415 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 30 states, 30 states have (on average 2.566666666666667) internal successors, (77), 30 states have internal predecessors, (77), 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) [2022-10-16 11:10:04,112 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (= |c_ULTIMATE.start_main_~val~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_36| Int) (v_ArrVal_207 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_36| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (select (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_36| 4)) v_ArrVal_207) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4)) 1))) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (= (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) 0) (<= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from false [2022-10-16 11:10:06,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:10:06,418 INFO L93 Difference]: Finished difference Result 218 states and 262 transitions. [2022-10-16 11:10:06,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:10:06,419 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.566666666666667) internal successors, (77), 30 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 11:10:06,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:10:06,420 INFO L225 Difference]: With dead ends: 218 [2022-10-16 11:10:06,420 INFO L226 Difference]: Without dead ends: 176 [2022-10-16 11:10:06,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 2 IntricatePredicates, 2 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=166, Invalid=1021, Unknown=11, NotChecked=134, Total=1332 [2022-10-16 11:10:06,422 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 67 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 131 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:10:06,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 256 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 251 Invalid, 0 Unknown, 131 Unchecked, 0.2s Time] [2022-10-16 11:10:06,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-16 11:10:06,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 148. [2022-10-16 11:10:06,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 146 states have (on average 1.2054794520547945) internal successors, (176), 147 states have internal predecessors, (176), 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) [2022-10-16 11:10:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 176 transitions. [2022-10-16 11:10:06,454 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 176 transitions. Word has length 35 [2022-10-16 11:10:06,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:10:06,455 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 176 transitions. [2022-10-16 11:10:06,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.566666666666667) internal successors, (77), 30 states have internal predecessors, (77), 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) [2022-10-16 11:10:06,455 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 176 transitions. [2022-10-16 11:10:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 11:10:06,456 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:10:06,456 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:10:06,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 11:10:06,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:10:06,657 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:10:06,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:10:06,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1968904662, now seen corresponding path program 1 times [2022-10-16 11:10:06,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:10:06,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406012859] [2022-10-16 11:10:06,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:10:06,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:10:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:10:07,143 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:10:07,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:10:07,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406012859] [2022-10-16 11:10:07,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406012859] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:10:07,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004642321] [2022-10-16 11:10:07,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:10:07,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:10:07,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:10:07,147 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) [2022-10-16 11:10:07,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 11:10:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:10:07,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 11:10:07,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:10:07,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:10:07,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:10:07,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 11:10:07,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 11:10:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:10:07,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:10:33,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2022-10-16 11:10:33,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 122 [2022-10-16 11:10:34,001 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:10:34,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004642321] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:10:34,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:10:34,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 13] total 35 [2022-10-16 11:10:34,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315589526] [2022-10-16 11:10:34,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:10:34,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 11:10:34,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:10:34,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 11:10:34,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1090, Unknown=21, NotChecked=0, Total=1260 [2022-10-16 11:10:34,004 INFO L87 Difference]: Start difference. First operand 148 states and 176 transitions. Second operand has 36 states, 35 states have (on average 2.5714285714285716) internal successors, (90), 36 states have internal predecessors, (90), 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) [2022-10-16 11:10:34,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:10:34,806 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2022-10-16 11:10:34,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 11:10:34,807 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.5714285714285716) internal successors, (90), 36 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 11:10:34,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:10:34,808 INFO L225 Difference]: With dead ends: 176 [2022-10-16 11:10:34,808 INFO L226 Difference]: Without dead ends: 175 [2022-10-16 11:10:34,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 26.9s TimeCoverageRelationStatistics Valid=432, Invalid=2409, Unknown=21, NotChecked=0, Total=2862 [2022-10-16 11:10:34,810 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 91 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:10:34,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 250 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 703 Invalid, 0 Unknown, 53 Unchecked, 0.4s Time] [2022-10-16 11:10:34,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-16 11:10:34,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 145. [2022-10-16 11:10:34,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 143 states have (on average 1.1958041958041958) internal successors, (171), 144 states have internal predecessors, (171), 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) [2022-10-16 11:10:34,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 171 transitions. [2022-10-16 11:10:34,832 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 171 transitions. Word has length 35 [2022-10-16 11:10:34,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:10:34,833 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 171 transitions. [2022-10-16 11:10:34,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.5714285714285716) internal successors, (90), 36 states have internal predecessors, (90), 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) [2022-10-16 11:10:34,833 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 171 transitions. [2022-10-16 11:10:34,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 11:10:34,834 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:10:34,834 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:10:34,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 11:10:35,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:10:35,049 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:10:35,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:10:35,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1791794816, now seen corresponding path program 1 times [2022-10-16 11:10:35,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:10:35,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631791636] [2022-10-16 11:10:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:10:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:10:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:10:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:10:35,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:10:35,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631791636] [2022-10-16 11:10:35,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631791636] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:10:35,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221088449] [2022-10-16 11:10:35,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:10:35,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:10:35,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:10:35,726 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) [2022-10-16 11:10:35,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 11:10:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:10:35,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 11:10:35,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:10:35,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:10:35,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:10:35,883 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:10:35,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:10:35,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:10:36,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:10:36,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:10:36,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 11:10:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:10:36,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:10:38,175 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_44|)) (forall ((v_ArrVal_255 Int)) (< (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))) is different from false [2022-10-16 11:10:42,803 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_45| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post4#1| 1) |v_ULTIMATE.start_main_~i~0#1_45|)) (forall ((v_ArrVal_255 Int) (v_ArrVal_253 Int) (|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_44| (+ |v_ULTIMATE.start_main_~i~0#1_45| 1)) (< (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_45| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_253) (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649))))) is different from false [2022-10-16 11:11:36,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-10-16 11:11:36,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2178 treesize of output 2162 [2022-10-16 11:11:43,086 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 24 refuted. 2 times theorem prover too weak. 0 trivial. 10 not checked. [2022-10-16 11:11:43,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221088449] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:11:43,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:11:43,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 15] total 32 [2022-10-16 11:11:43,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429008675] [2022-10-16 11:11:43,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:11:43,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 11:11:43,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:43,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 11:11:43,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=741, Unknown=39, NotChecked=118, Total=1056 [2022-10-16 11:11:43,089 INFO L87 Difference]: Start difference. First operand 145 states and 171 transitions. Second operand has 33 states, 32 states have (on average 2.4375) internal successors, (78), 33 states have internal predecessors, (78), 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) [2022-10-16 11:11:45,151 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_#t~post4#1| 1)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_44|)) (forall ((v_ArrVal_255 Int)) (< (select (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))) (= |c_ULTIMATE.start_main_~i~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_45| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_45|)) (forall ((v_ArrVal_255 Int) (v_ArrVal_253 Int) (|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_44| (+ |v_ULTIMATE.start_main_~i~0#1_45| 1)) (< (select (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_45| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_253) (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649))))) (<= |c_ULTIMATE.start_main_~val~0#1| 2147483647) (<= (select .cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) 2147483647) (<= (select .cse1 0) 2147483647) (= |c_ULTIMATE.start_main_#t~post4#1| 0) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:11:47,156 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_#t~post4#1| 1)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_44|)) (forall ((v_ArrVal_255 Int)) (< (select (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))) (forall ((|v_ULTIMATE.start_main_~i~0#1_45| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_45|)) (forall ((v_ArrVal_255 Int) (v_ArrVal_253 Int) (|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_44| (+ |v_ULTIMATE.start_main_~i~0#1_45| 1)) (< (select (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_45| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_253) (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649))))) (<= (select .cse1 0) 2147483647) (= |c_ULTIMATE.start_main_#t~post4#1| 0) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:11:49,190 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ (div (* (- 1) |c_ULTIMATE.start_main_~arr~0#1.offset|) 4) 1)) (.cse0 (+ |c_ULTIMATE.start_main_#t~post4#1| 1)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_44|)) (forall ((v_ArrVal_255 Int)) (< (select (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))) (<= .cse2 |c_ULTIMATE.start_main_~i~0#1|) (<= .cse2 |c_ULTIMATE.start_main_#t~post4#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_45| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_45|)) (forall ((v_ArrVal_255 Int) (v_ArrVal_253 Int) (|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_44| (+ |v_ULTIMATE.start_main_~i~0#1_45| 1)) (< (select (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_45| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_253) (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649))))) (<= (select .cse1 0) 2147483647) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:11:51,198 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_#t~post4#1| 1)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_44|)) (forall ((v_ArrVal_255 Int)) (< (select (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))) (<= (+ (div (* (- 1) |c_ULTIMATE.start_main_~arr~0#1.offset|) 4) 1) |c_ULTIMATE.start_main_#t~post4#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_45| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_45|)) (forall ((v_ArrVal_255 Int) (v_ArrVal_253 Int) (|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_44| (+ |v_ULTIMATE.start_main_~i~0#1_45| 1)) (< (select (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_45| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_253) (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649))))) (<= (select .cse1 0) 2147483647) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:11:53,227 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_#t~post4#1| 1)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse2 (+ (div (* (- 1) |c_ULTIMATE.start_main_~arr~0#1.offset|) 4) 2))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_44|)) (forall ((v_ArrVal_255 Int)) (< (select (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))) (forall ((|v_ULTIMATE.start_main_~i~0#1_45| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_45|)) (forall ((v_ArrVal_255 Int) (v_ArrVal_253 Int) (|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_44| (+ |v_ULTIMATE.start_main_~i~0#1_45| 1)) (< (select (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_45| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_253) (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649))))) (<= (select .cse1 0) 2147483647) (<= .cse2 |c_ULTIMATE.start_main_~i~0#1|) (<= .cse2 |c_ULTIMATE.start_main_#t~post4#1|) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:11:55,233 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_#t~post4#1| 1)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_44|)) (forall ((v_ArrVal_255 Int)) (< (select (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649)))) (forall ((|v_ULTIMATE.start_main_~i~0#1_45| Int)) (or (not (<= .cse0 |v_ULTIMATE.start_main_~i~0#1_45|)) (forall ((v_ArrVal_255 Int) (v_ArrVal_253 Int) (|v_ULTIMATE.start_main_~i~0#1_44| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_44| (+ |v_ULTIMATE.start_main_~i~0#1_45| 1)) (< (select (store (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_45| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_253) (+ (* |v_ULTIMATE.start_main_~i~0#1_44| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~arr~0#1.offset|) 2147483649))))) (<= (select .cse1 0) 2147483647) (<= (+ (div (* (- 1) |c_ULTIMATE.start_main_~arr~0#1.offset|) 4) 2) |c_ULTIMATE.start_main_#t~post4#1|) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0))) is different from false [2022-10-16 11:11:55,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:11:55,579 INFO L93 Difference]: Finished difference Result 171 states and 200 transitions. [2022-10-16 11:11:55,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 11:11:55,580 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.4375) internal successors, (78), 33 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 11:11:55,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:11:55,581 INFO L225 Difference]: With dead ends: 171 [2022-10-16 11:11:55,581 INFO L226 Difference]: Without dead ends: 170 [2022-10-16 11:11:55,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 73.1s TimeCoverageRelationStatistics Valid=283, Invalid=1264, Unknown=45, NotChecked=664, Total=2256 [2022-10-16 11:11:55,582 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 64 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 127 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:11:55,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 208 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 249 Invalid, 0 Unknown, 127 Unchecked, 0.2s Time] [2022-10-16 11:11:55,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-10-16 11:11:55,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 134. [2022-10-16 11:11:55,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 132 states have (on average 1.1818181818181819) internal successors, (156), 133 states have internal predecessors, (156), 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) [2022-10-16 11:11:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2022-10-16 11:11:55,605 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 35 [2022-10-16 11:11:55,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:11:55,605 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2022-10-16 11:11:55,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.4375) internal successors, (78), 33 states have internal predecessors, (78), 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) [2022-10-16 11:11:55,605 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2022-10-16 11:11:55,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 11:11:55,606 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:11:55,606 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:11:55,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-10-16 11:11:55,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:55,816 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 11:11:55,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:11:55,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1288096217, now seen corresponding path program 5 times [2022-10-16 11:11:55,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:11:55,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073281020] [2022-10-16 11:11:55,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:11:55,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:11:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:11:56,272 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:56,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:11:56,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073281020] [2022-10-16 11:11:56,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073281020] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:11:56,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063596657] [2022-10-16 11:11:56,273 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 11:11:56,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:11:56,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:11:56,274 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) [2022-10-16 11:11:56,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 11:11:56,348 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-10-16 11:11:56,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:11:56,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 11:11:56,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:11:56,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:11:56,836 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 11:11:56,837 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 21 treesize of output 10 [2022-10-16 11:11:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:56,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:11:57,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-10-16 11:11:57,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-10-16 11:11:57,161 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:11:57,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063596657] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:11:57,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:11:57,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 32 [2022-10-16 11:11:57,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858721737] [2022-10-16 11:11:57,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:11:57,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 11:11:57,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:11:57,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 11:11:57,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=889, Unknown=0, NotChecked=0, Total=992 [2022-10-16 11:11:57,164 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand has 32 states, 32 states have (on average 2.71875) internal successors, (87), 32 states have internal predecessors, (87), 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)