/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/ldv-regression/test09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:04:03,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:04:03,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:04:03,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:04:03,592 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 14:04:03,642 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:04:03,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:04:03,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:04:03,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:04:03,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:04:03,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:04:03,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:04:03,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:04:03,645 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:04:03,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:04:03,646 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:04:03,646 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:04:03,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:04:03,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:04:03,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:04:03,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:04:03,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:04:03,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:04:03,647 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:04:03,647 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:04:03,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:04:03,648 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:04:03,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:04:03,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:04:03,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:04:03,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:04:03,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:04:03,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:04:03,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:04:03,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:04:03,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:04:03,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:04:03,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:04:03,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:04:04,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:04:04,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:04:04,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:04:04,065 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:04:04,071 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:04:04,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test09.c [2022-10-16 14:04:04,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81fa0db8/7aec3f10488b490294857d87f6ac6fb2/FLAG6dfd87e1e [2022-10-16 14:04:04,755 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:04:04,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test09.c [2022-10-16 14:04:04,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81fa0db8/7aec3f10488b490294857d87f6ac6fb2/FLAG6dfd87e1e [2022-10-16 14:04:05,132 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81fa0db8/7aec3f10488b490294857d87f6ac6fb2 [2022-10-16 14:04:05,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:04:05,145 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:04:05,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:04:05,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:04:05,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:04:05,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277901c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05, skipping insertion in model container [2022-10-16 14:04:05,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:04:05,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:04:05,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test09.c[592,605] [2022-10-16 14:04:05,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:04:05,385 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:04:05,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test09.c[592,605] [2022-10-16 14:04:05,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:04:05,424 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:04:05,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05 WrapperNode [2022-10-16 14:04:05,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:04:05,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:04:05,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:04:05,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:04:05,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,472 INFO L138 Inliner]: procedures = 12, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2022-10-16 14:04:05,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:04:05,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:04:05,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:04:05,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:04:05,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,495 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:04:05,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:04:05,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:04:05,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:04:05,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (1/1) ... [2022-10-16 14:04:05,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:04:05,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:04:05,549 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 14:04:05,574 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 14:04:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:04:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:04:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:04:05,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:04:05,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:04:05,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:04:05,759 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:04:05,761 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:04:06,056 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:04:06,075 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:04:06,076 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 14:04:06,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:04:06 BoogieIcfgContainer [2022-10-16 14:04:06,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:04:06,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:04:06,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:04:06,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:04:06,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:04:05" (1/3) ... [2022-10-16 14:04:06,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77074912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:04:06, skipping insertion in model container [2022-10-16 14:04:06,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:05" (2/3) ... [2022-10-16 14:04:06,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77074912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:04:06, skipping insertion in model container [2022-10-16 14:04:06,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:04:06" (3/3) ... [2022-10-16 14:04:06,114 INFO L112 eAbstractionObserver]: Analyzing ICFG test09.c [2022-10-16 14:04:06,152 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:04:06,152 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 14:04:06,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:04:06,242 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;@35da9f59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:04:06,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 14:04:06,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 20 states have internal predecessors, (22), 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 14:04:06,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-16 14:04:06,255 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:06,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-16 14:04:06,257 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 14:04:06,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:06,265 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2022-10-16 14:04:06,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:06,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935373803] [2022-10-16 14:04:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:06,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:06,785 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 14:04:06,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:06,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935373803] [2022-10-16 14:04:06,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935373803] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:06,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:06,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:04:06,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189641434] [2022-10-16 14:04:06,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:06,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:04:06,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:06,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:04:06,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:04:06,836 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 20 states have internal predecessors, (22), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 14:04:06,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:06,863 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2022-10-16 14:04:06,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:04:06,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-10-16 14:04:06,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:06,876 INFO L225 Difference]: With dead ends: 24 [2022-10-16 14:04:06,876 INFO L226 Difference]: Without dead ends: 12 [2022-10-16 14:04:06,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:04:06,885 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:06,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 33 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:04:06,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-10-16 14:04:06,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-10-16 14:04:06,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 11 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 14:04:06,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2022-10-16 14:04:06,921 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 3 [2022-10-16 14:04:06,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:06,921 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2022-10-16 14:04:06,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 14:04:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-10-16 14:04:06,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:04:06,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:06,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:04:06,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:04:06,924 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 14:04:06,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:06,924 INFO L85 PathProgramCache]: Analyzing trace with hash 28692770, now seen corresponding path program 1 times [2022-10-16 14:04:06,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:06,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857349045] [2022-10-16 14:04:06,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:06,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:07,405 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 14:04:07,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:07,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857349045] [2022-10-16 14:04:07,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857349045] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:07,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:07,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:04:07,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443836503] [2022-10-16 14:04:07,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:07,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:04:07,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:07,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:04:07,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:04:07,410 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 14:04:07,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:07,505 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2022-10-16 14:04:07,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:04:07,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-10-16 14:04:07,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:07,508 INFO L225 Difference]: With dead ends: 12 [2022-10-16 14:04:07,508 INFO L226 Difference]: Without dead ends: 11 [2022-10-16 14:04:07,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:04:07,512 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:07,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:04:07,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-10-16 14:04:07,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-10-16 14:04:07,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.25) internal successors, (10), 10 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 14:04:07,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2022-10-16 14:04:07,520 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 5 [2022-10-16 14:04:07,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:07,522 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2022-10-16 14:04:07,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 14:04:07,523 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2022-10-16 14:04:07,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 14:04:07,524 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:07,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 14:04:07,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:04:07,526 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:04:07,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:07,528 INFO L85 PathProgramCache]: Analyzing trace with hash 889475910, now seen corresponding path program 1 times [2022-10-16 14:04:07,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:07,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259596225] [2022-10-16 14:04:07,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:07,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:07,915 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 14:04:07,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:07,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259596225] [2022-10-16 14:04:07,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259596225] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:07,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:07,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:04:07,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342489018] [2022-10-16 14:04:07,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:07,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:04:07,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:07,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:04:07,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:04:07,920 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 14:04:07,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:07,975 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-10-16 14:04:07,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:04:07,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-10-16 14:04:07,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:07,977 INFO L225 Difference]: With dead ends: 11 [2022-10-16 14:04:07,977 INFO L226 Difference]: Without dead ends: 10 [2022-10-16 14:04:07,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:04:07,980 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2 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 14:04:07,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:04:07,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-10-16 14:04:07,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-10-16 14:04:07,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 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 14:04:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-10-16 14:04:07,985 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2022-10-16 14:04:07,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:07,985 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-10-16 14:04:07,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 14:04:07,986 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-10-16 14:04:07,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:04:07,987 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:07,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:07,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:04:07,987 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:04:07,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:07,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949476, now seen corresponding path program 1 times [2022-10-16 14:04:07,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:07,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714219123] [2022-10-16 14:04:07,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:07,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:08,169 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 14:04:08,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:08,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714219123] [2022-10-16 14:04:08,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714219123] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:08,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:08,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:04:08,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050122674] [2022-10-16 14:04:08,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:08,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:04:08,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:08,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:04:08,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:04:08,173 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 14:04:08,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:08,227 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2022-10-16 14:04:08,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:04:08,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 7 [2022-10-16 14:04:08,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:08,229 INFO L225 Difference]: With dead ends: 10 [2022-10-16 14:04:08,229 INFO L226 Difference]: Without dead ends: 9 [2022-10-16 14:04:08,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:04:08,231 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 7 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 14:04:08,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 7 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:04:08,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-10-16 14:04:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-10-16 14:04:08,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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 14:04:08,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-10-16 14:04:08,236 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2022-10-16 14:04:08,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:08,236 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-10-16 14:04:08,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 14:04:08,237 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-10-16 14:04:08,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 14:04:08,237 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:08,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:08,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:04:08,238 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:04:08,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:08,239 INFO L85 PathProgramCache]: Analyzing trace with hash 87858952, now seen corresponding path program 1 times [2022-10-16 14:04:08,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:08,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902616345] [2022-10-16 14:04:08,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:08,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:08,508 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 14:04:08,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:08,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902616345] [2022-10-16 14:04:08,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902616345] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:08,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:08,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:04:08,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578787632] [2022-10-16 14:04:08,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:08,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:04:08,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:08,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:04:08,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:04:08,517 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 14:04:08,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:08,593 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-10-16 14:04:08,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:04:08,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2022-10-16 14:04:08,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:08,595 INFO L225 Difference]: With dead ends: 9 [2022-10-16 14:04:08,595 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 14:04:08,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:04:08,604 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:08,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:04:08,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 14:04:08,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 14:04:08,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:04:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 14:04:08,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-10-16 14:04:08,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:08,613 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 14:04:08,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 14:04:08,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 14:04:08,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 14:04:08,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-10-16 14:04:08,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-10-16 14:04:08,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-10-16 14:04:08,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-10-16 14:04:08,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-10-16 14:04:08,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-10-16 14:04:08,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:04:08,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 14:04:08,642 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-10-16 14:04:08,643 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2022-10-16 14:04:08,643 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 14:04:08,643 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-10-16 14:04:08,643 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-10-16 14:04:08,644 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-10-16 14:04:08,644 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-10-16 14:04:08,644 INFO L902 garLoopResultBuilder]: At program point L15(lines 9 17) the Hoare annotation is: true [2022-10-16 14:04:08,644 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 16) no Hoare annotation was computed. [2022-10-16 14:04:08,644 INFO L902 garLoopResultBuilder]: At program point L40(lines 19 41) the Hoare annotation is: true [2022-10-16 14:04:08,645 INFO L902 garLoopResultBuilder]: At program point L34(lines 19 41) the Hoare annotation is: true [2022-10-16 14:04:08,645 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 14:04:08,645 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-10-16 14:04:08,646 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-10-16 14:04:08,646 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 14:04:08,646 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-10-16 14:04:08,646 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 14:04:08,646 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-10-16 14:04:08,646 INFO L899 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2022-10-16 14:04:08,647 INFO L899 garLoopResultBuilder]: For program point L10-2(line 10) no Hoare annotation was computed. [2022-10-16 14:04:08,647 INFO L899 garLoopResultBuilder]: For program point L10-3(line 10) no Hoare annotation was computed. [2022-10-16 14:04:08,652 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-10-16 14:04:08,655 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 14:04:08,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:04:08 BoogieIcfgContainer [2022-10-16 14:04:08,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 14:04:08,667 INFO L158 Benchmark]: Toolchain (without parser) took 3526.18ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 126.5MB in the beginning and 107.4MB in the end (delta: 19.1MB). Peak memory consumption was 56.2MB. Max. memory is 8.0GB. [2022-10-16 14:04:08,667 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 153.1MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 14:04:08,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.47ms. Allocated memory is still 153.1MB. Free memory was 126.4MB in the beginning and 116.2MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 14:04:08,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.79ms. Allocated memory is still 153.1MB. Free memory was 116.2MB in the beginning and 114.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 14:04:08,669 INFO L158 Benchmark]: Boogie Preprocessor took 25.68ms. Allocated memory is still 153.1MB. Free memory was 114.7MB in the beginning and 113.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 14:04:08,669 INFO L158 Benchmark]: RCFGBuilder took 583.21ms. Allocated memory is still 153.1MB. Free memory was 113.6MB in the beginning and 102.9MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 14:04:08,670 INFO L158 Benchmark]: TraceAbstraction took 2574.49ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 102.3MB in the beginning and 107.4MB in the end (delta: -5.1MB). Peak memory consumption was 32.1MB. Max. memory is 8.0GB. [2022-10-16 14:04:08,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 153.1MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 276.47ms. Allocated memory is still 153.1MB. Free memory was 126.4MB in the beginning and 116.2MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.79ms. Allocated memory is still 153.1MB. Free memory was 116.2MB in the beginning and 114.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.68ms. Allocated memory is still 153.1MB. Free memory was 114.7MB in the beginning and 113.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 583.21ms. Allocated memory is still 153.1MB. Free memory was 113.6MB in the beginning and 102.9MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2574.49ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 102.3MB in the beginning and 107.4MB in the end (delta: -5.1MB). Peak memory consumption was 32.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 24 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 4 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-16 14:04:08,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...