/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/Mono1_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 21:06:15,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 21:06:15,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 21:06:15,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-23 21:06:15,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 21:06:15,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 21:06:15,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 21:06:15,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 21:06:15,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 21:06:15,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 21:06:15,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 21:06:15,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 21:06:15,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 21:06:15,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 21:06:15,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 21:06:15,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 21:06:15,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-23 21:06:15,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 21:06:15,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 21:06:15,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 21:06:15,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-23 21:06:15,238 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 21:06:15,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 21:06:15,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-23 21:06:15,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-23 21:06:15,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-23 21:06:15,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-23 21:06:15,245 INFO L138 SettingsManager]: * Use SBE=true [2022-02-23 21:06:15,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 21:06:15,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 21:06:15,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 21:06:15,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 21:06:15,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 21:06:15,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 21:06:15,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 21:06:15,246 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 21:06:15,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 21:06:15,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 21:06:15,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 21:06:15,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 21:06:15,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 21:06:15,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 21:06:15,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-23 21:06:15,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-23 21:06:15,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 21:06:15,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-23 21:06:15,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-23 21:06:15,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-23 21:06:15,248 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-23 21:06:15,249 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 21:06:15,249 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 21:06:15,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 21:06:15,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 21:06:15,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 21:06:15,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 21:06:15,506 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 21:06:15,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/Mono1_1-2.c [2022-02-23 21:06:15,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8dd63d2/9843ae15a7e145c69010f9ea15e0f27c/FLAGb32b35be6 [2022-02-23 21:06:15,848 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 21:06:15,848 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/Mono1_1-2.c [2022-02-23 21:06:15,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8dd63d2/9843ae15a7e145c69010f9ea15e0f27c/FLAGb32b35be6 [2022-02-23 21:06:16,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8dd63d2/9843ae15a7e145c69010f9ea15e0f27c [2022-02-23 21:06:16,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 21:06:16,288 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 21:06:16,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 21:06:16,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 21:06:16,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 21:06:16,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:06:16" (1/1) ... [2022-02-23 21:06:16,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b76a59d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:06:16, skipping insertion in model container [2022-02-23 21:06:16,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:06:16" (1/1) ... [2022-02-23 21:06:16,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 21:06:16,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 21:06:16,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/Mono1_1-2.c[313,326] [2022-02-23 21:06:16,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 21:06:16,433 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 21:06:16,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/Mono1_1-2.c[313,326] [2022-02-23 21:06:16,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 21:06:16,492 INFO L208 MainTranslator]: Completed translation [2022-02-23 21:06:16,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:06:16 WrapperNode [2022-02-23 21:06:16,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 21:06:16,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 21:06:16,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 21:06:16,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 21:06:16,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:06:16" (1/1) ... [2022-02-23 21:06:16,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:06:16" (1/1) ... [2022-02-23 21:06:16,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:06:16" (1/1) ... [2022-02-23 21:06:16,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:06:16" (1/1) ... [2022-02-23 21:06:16,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:06:16" (1/1) ... [2022-02-23 21:06:16,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:06:16" (1/1) ... [2022-02-23 21:06:16,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:06:16" (1/1) ... [2022-02-23 21:06:16,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 21:06:16,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 21:06:16,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 21:06:16,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 21:06:16,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:06:16" (1/1) ... [2022-02-23 21:06:16,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 21:06:16,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 21:06:16,560 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) [2022-02-23 21:06:16,583 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 [2022-02-23 21:06:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 21:06:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 21:06:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 21:06:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-23 21:06:16,602 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 21:06:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 21:06:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 21:06:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 21:06:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 21:06:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-23 21:06:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 21:06:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 21:06:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 21:06:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 21:06:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 21:06:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 21:06:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 21:06:16,658 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 21:06:16,660 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 21:06:16,722 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 21:06:16,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 21:06:16,727 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 21:06:16,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:06:16 BoogieIcfgContainer [2022-02-23 21:06:16,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 21:06:16,729 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 21:06:16,729 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 21:06:16,730 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 21:06:16,732 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:06:16" (1/1) ... [2022-02-23 21:06:16,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 09:06:16 BasicIcfg [2022-02-23 21:06:16,745 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 21:06:16,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 21:06:16,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 21:06:16,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 21:06:16,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 09:06:16" (1/4) ... [2022-02-23 21:06:16,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db6b52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:06:16, skipping insertion in model container [2022-02-23 21:06:16,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:06:16" (2/4) ... [2022-02-23 21:06:16,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db6b52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:06:16, skipping insertion in model container [2022-02-23 21:06:16,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:06:16" (3/4) ... [2022-02-23 21:06:16,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db6b52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 09:06:16, skipping insertion in model container [2022-02-23 21:06:16,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 09:06:16" (4/4) ... [2022-02-23 21:06:16,752 INFO L111 eAbstractionObserver]: Analyzing ICFG Mono1_1-2.cqvasr [2022-02-23 21:06:16,756 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-23 21:06:16,757 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 21:06:16,794 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 21:06:16,805 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 21:06:16,805 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 21:06:16,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-23 21:06:16,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-23 21:06:16,833 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 21:06:16,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 21:06:16,834 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 21:06:16,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 21:06:16,838 INFO L85 PathProgramCache]: Analyzing trace with hash -756157467, now seen corresponding path program 1 times [2022-02-23 21:06:16,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 21:06:16,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622968042] [2022-02-23 21:06:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:06:16,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 21:06:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:16,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 21:06:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 21:06:16,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 21:06:16,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622968042] [2022-02-23 21:06:16,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622968042] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 21:06:16,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 21:06:16,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-23 21:06:16,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287886731] [2022-02-23 21:06:16,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 21:06:17,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 21:06:17,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 21:06:17,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 21:06:17,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-23 21:06:17,028 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:17,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 21:06:17,057 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-02-23 21:06:17,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 21:06:17,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-02-23 21:06:17,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 21:06:17,064 INFO L225 Difference]: With dead ends: 30 [2022-02-23 21:06:17,064 INFO L226 Difference]: Without dead ends: 13 [2022-02-23 21:06:17,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-23 21:06:17,070 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 21:06:17,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 22 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 21:06:17,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-02-23 21:06:17,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-02-23 21:06:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:17,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-02-23 21:06:17,095 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2022-02-23 21:06:17,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 21:06:17,095 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-02-23 21:06:17,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:17,096 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-02-23 21:06:17,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-23 21:06:17,096 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 21:06:17,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 21:06:17,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 21:06:17,097 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 21:06:17,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 21:06:17,098 INFO L85 PathProgramCache]: Analyzing trace with hash -755233946, now seen corresponding path program 1 times [2022-02-23 21:06:17,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 21:06:17,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047410882] [2022-02-23 21:06:17,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:06:17,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 21:06:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:17,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 21:06:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:17,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 21:06:17,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 21:06:17,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047410882] [2022-02-23 21:06:17,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047410882] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 21:06:17,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 21:06:17,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 21:06:17,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003882337] [2022-02-23 21:06:17,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 21:06:17,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 21:06:17,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 21:06:17,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 21:06:17,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 21:06:17,200 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:17,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 21:06:17,258 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2022-02-23 21:06:17,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 21:06:17,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-02-23 21:06:17,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 21:06:17,260 INFO L225 Difference]: With dead ends: 22 [2022-02-23 21:06:17,260 INFO L226 Difference]: Without dead ends: 15 [2022-02-23 21:06:17,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 21:06:17,262 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 21:06:17,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 19 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 21:06:17,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-02-23 21:06:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-02-23 21:06:17,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:17,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-02-23 21:06:17,267 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2022-02-23 21:06:17,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 21:06:17,267 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-02-23 21:06:17,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:17,267 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-02-23 21:06:17,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-23 21:06:17,268 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 21:06:17,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 21:06:17,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 21:06:17,268 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 21:06:17,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 21:06:17,269 INFO L85 PathProgramCache]: Analyzing trace with hash 980092676, now seen corresponding path program 1 times [2022-02-23 21:06:17,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 21:06:17,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186501205] [2022-02-23 21:06:17,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:06:17,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 21:06:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 21:06:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 21:06:17,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 21:06:17,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186501205] [2022-02-23 21:06:17,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186501205] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 21:06:17,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459793925] [2022-02-23 21:06:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:06:17,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:06:17,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 21:06:17,416 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) [2022-02-23 21:06:17,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 21:06:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:17,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-23 21:06:17,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 21:06:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 21:06:17,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 21:06:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 21:06:17,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459793925] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 21:06:17,696 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 21:06:17,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 7] total 11 [2022-02-23 21:06:17,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906539480] [2022-02-23 21:06:17,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 21:06:17,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-23 21:06:17,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 21:06:17,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-23 21:06:17,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-02-23 21:06:17,699 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:17,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 21:06:17,860 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2022-02-23 21:06:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 21:06:17,861 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-02-23 21:06:17,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 21:06:17,862 INFO L225 Difference]: With dead ends: 25 [2022-02-23 21:06:17,862 INFO L226 Difference]: Without dead ends: 18 [2022-02-23 21:06:17,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-02-23 21:06:17,863 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 21:06:17,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 48 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 21:06:17,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-02-23 21:06:17,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-02-23 21:06:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:17,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-02-23 21:06:17,867 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2022-02-23 21:06:17,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 21:06:17,868 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-02-23 21:06:17,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:17,868 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-02-23 21:06:17,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-02-23 21:06:17,869 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 21:06:17,869 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 21:06:17,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-23 21:06:18,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:06:18,070 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 21:06:18,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 21:06:18,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1575643231, now seen corresponding path program 1 times [2022-02-23 21:06:18,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 21:06:18,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976648224] [2022-02-23 21:06:18,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:06:18,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 21:06:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:18,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 21:06:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 21:06:18,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 21:06:18,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976648224] [2022-02-23 21:06:18,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976648224] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 21:06:18,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946229087] [2022-02-23 21:06:18,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:06:18,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:06:18,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 21:06:18,173 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) [2022-02-23 21:06:18,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-23 21:06:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:18,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-23 21:06:18,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 21:06:18,280 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 21:06:18,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 21:06:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 21:06:18,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946229087] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 21:06:18,385 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 21:06:18,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 11 [2022-02-23 21:06:18,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296766618] [2022-02-23 21:06:18,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 21:06:18,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-23 21:06:18,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 21:06:18,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-23 21:06:18,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-02-23 21:06:18,387 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:18,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 21:06:18,635 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2022-02-23 21:06:18,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-23 21:06:18,635 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-02-23 21:06:18,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 21:06:18,636 INFO L225 Difference]: With dead ends: 34 [2022-02-23 21:06:18,636 INFO L226 Difference]: Without dead ends: 26 [2022-02-23 21:06:18,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2022-02-23 21:06:18,638 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 21:06:18,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 39 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 21:06:18,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-02-23 21:06:18,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-02-23 21:06:18,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2022-02-23 21:06:18,643 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 17 [2022-02-23 21:06:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 21:06:18,644 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-02-23 21:06:18,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2022-02-23 21:06:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-02-23 21:06:18,645 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 21:06:18,645 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 21:06:18,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-23 21:06:18,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-02-23 21:06:18,860 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 21:06:18,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 21:06:18,860 INFO L85 PathProgramCache]: Analyzing trace with hash 109985751, now seen corresponding path program 2 times [2022-02-23 21:06:18,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 21:06:18,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639436523] [2022-02-23 21:06:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:06:18,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 21:06:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 21:06:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 21:06:19,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 21:06:19,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639436523] [2022-02-23 21:06:19,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639436523] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 21:06:19,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559390848] [2022-02-23 21:06:19,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-23 21:06:19,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:06:19,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 21:06:19,064 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) [2022-02-23 21:06:19,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-23 21:06:19,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-23 21:06:19,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-23 21:06:19,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-23 21:06:19,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 21:06:19,221 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 21:06:19,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 21:06:19,526 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 21:06:19,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559390848] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 21:06:19,527 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 21:06:19,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 13] total 23 [2022-02-23 21:06:19,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115490500] [2022-02-23 21:06:19,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 21:06:19,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-23 21:06:19,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 21:06:19,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-23 21:06:19,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-02-23 21:06:19,529 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 21 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:20,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 21:06:20,865 INFO L93 Difference]: Finished difference Result 47 states and 58 transitions. [2022-02-23 21:06:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-23 21:06:20,866 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 21 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-02-23 21:06:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 21:06:20,868 INFO L225 Difference]: With dead ends: 47 [2022-02-23 21:06:20,868 INFO L226 Difference]: Without dead ends: 36 [2022-02-23 21:06:20,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=311, Invalid=1095, Unknown=0, NotChecked=0, Total=1406 [2022-02-23 21:06:20,870 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 34 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-23 21:06:20,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 71 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-23 21:06:20,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-02-23 21:06:20,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-02-23 21:06:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:20,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2022-02-23 21:06:20,876 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 25 [2022-02-23 21:06:20,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 21:06:20,876 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2022-02-23 21:06:20,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 21 states have internal predecessors, (44), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:20,877 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-02-23 21:06:20,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-02-23 21:06:20,877 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 21:06:20,877 INFO L514 BasicCegarLoop]: trace histogram [12, 7, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 21:06:20,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-23 21:06:21,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:06:21,095 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 21:06:21,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 21:06:21,096 INFO L85 PathProgramCache]: Analyzing trace with hash 134643049, now seen corresponding path program 3 times [2022-02-23 21:06:21,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 21:06:21,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198393128] [2022-02-23 21:06:21,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:06:21,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 21:06:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:21,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 21:06:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:21,266 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 56 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-02-23 21:06:21,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 21:06:21,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198393128] [2022-02-23 21:06:21,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198393128] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 21:06:21,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914252238] [2022-02-23 21:06:21,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-23 21:06:21,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:06:21,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 21:06:21,268 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) [2022-02-23 21:06:21,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-23 21:06:21,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-02-23 21:06:21,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-23 21:06:21,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-23 21:06:21,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 21:06:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 77 proven. 25 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-02-23 21:06:21,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 21:06:22,267 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 77 proven. 25 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-02-23 21:06:22,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914252238] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 21:06:22,268 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 21:06:22,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 12] total 27 [2022-02-23 21:06:22,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529898143] [2022-02-23 21:06:22,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 21:06:22,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-23 21:06:22,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 21:06:22,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-23 21:06:22,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2022-02-23 21:06:22,270 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 25 states have internal predecessors, (55), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:26,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 21:06:26,696 INFO L93 Difference]: Finished difference Result 73 states and 99 transitions. [2022-02-23 21:06:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-23 21:06:26,697 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 25 states have internal predecessors, (55), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-02-23 21:06:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 21:06:26,697 INFO L225 Difference]: With dead ends: 73 [2022-02-23 21:06:26,697 INFO L226 Difference]: Without dead ends: 54 [2022-02-23 21:06:26,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=563, Invalid=2089, Unknown=0, NotChecked=0, Total=2652 [2022-02-23 21:06:26,699 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 64 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-23 21:06:26,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 61 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-23 21:06:26,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-02-23 21:06:26,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2022-02-23 21:06:26,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 47 states have internal predecessors, (55), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:26,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2022-02-23 21:06:26,707 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 35 [2022-02-23 21:06:26,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 21:06:26,708 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2022-02-23 21:06:26,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 25 states have internal predecessors, (55), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:26,708 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2022-02-23 21:06:26,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-23 21:06:26,709 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 21:06:26,709 INFO L514 BasicCegarLoop]: trace histogram [20, 12, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 21:06:26,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-23 21:06:26,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:06:26,913 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 21:06:26,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 21:06:26,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1228107086, now seen corresponding path program 4 times [2022-02-23 21:06:26,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 21:06:26,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132094233] [2022-02-23 21:06:26,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:06:26,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 21:06:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:27,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 21:06:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 207 proven. 72 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-23 21:06:27,099 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 21:06:27,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132094233] [2022-02-23 21:06:27,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132094233] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 21:06:27,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111309436] [2022-02-23 21:06:27,100 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-23 21:06:27,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:06:27,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 21:06:27,103 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) [2022-02-23 21:06:27,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-23 21:06:27,147 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-23 21:06:27,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-23 21:06:27,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 34 conjunts are in the unsatisfiable core [2022-02-23 21:06:27,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 21:06:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 144 proven. 240 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-02-23 21:06:27,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 21:06:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 144 proven. 240 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-02-23 21:06:28,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111309436] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 21:06:28,328 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 21:06:28,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 18, 19] total 37 [2022-02-23 21:06:28,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456176097] [2022-02-23 21:06:28,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 21:06:28,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-02-23 21:06:28,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 21:06:28,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-02-23 21:06:28,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=370, Invalid=962, Unknown=0, NotChecked=0, Total=1332 [2022-02-23 21:06:28,330 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 37 states, 37 states have (on average 2.108108108108108) internal successors, (78), 36 states have internal predecessors, (78), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:54,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 21:06:54,493 INFO L93 Difference]: Finished difference Result 116 states and 147 transitions. [2022-02-23 21:06:54,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-23 21:06:54,493 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.108108108108108) internal successors, (78), 36 states have internal predecessors, (78), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-02-23 21:06:54,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 21:06:54,494 INFO L225 Difference]: With dead ends: 116 [2022-02-23 21:06:54,494 INFO L226 Difference]: Without dead ends: 86 [2022-02-23 21:06:54,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 26.5s TimeCoverageRelationStatistics Valid=1061, Invalid=2845, Unknown=0, NotChecked=0, Total=3906 [2022-02-23 21:06:54,496 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 58 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-23 21:06:54,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 99 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-23 21:06:54,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-02-23 21:06:54,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-02-23 21:06:54,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 81 states have (on average 1.0987654320987654) internal successors, (89), 81 states have internal predecessors, (89), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:54,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2022-02-23 21:06:54,511 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 51 [2022-02-23 21:06:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 21:06:54,511 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2022-02-23 21:06:54,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.108108108108108) internal successors, (78), 36 states have internal predecessors, (78), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:06:54,512 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2022-02-23 21:06:54,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-23 21:06:54,513 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 21:06:54,513 INFO L514 BasicCegarLoop]: trace histogram [37, 25, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 21:06:54,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-23 21:06:54,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:06:54,736 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 21:06:54,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 21:06:54,737 INFO L85 PathProgramCache]: Analyzing trace with hash 525547056, now seen corresponding path program 5 times [2022-02-23 21:06:54,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 21:06:54,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401979235] [2022-02-23 21:06:54,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:06:54,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 21:06:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:55,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 21:06:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:06:55,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 598 proven. 650 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-23 21:06:55,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 21:06:55,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401979235] [2022-02-23 21:06:55,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401979235] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 21:06:55,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874904418] [2022-02-23 21:06:55,293 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-23 21:06:55,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:06:55,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 21:06:55,294 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) [2022-02-23 21:06:55,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-23 21:07:03,629 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 38 check-sat command(s) [2022-02-23 21:07:03,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-23 21:07:03,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 66 conjunts are in the unsatisfiable core [2022-02-23 21:07:03,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 21:07:04,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 352 proven. 992 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-23 21:07:04,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 21:07:06,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 352 proven. 992 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-23 21:07:06,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874904418] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 21:07:06,604 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 21:07:06,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 34, 35] total 69 [2022-02-23 21:07:06,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52247455] [2022-02-23 21:07:06,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 21:07:06,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-02-23 21:07:06,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 21:07:06,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-02-23 21:07:06,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1251, Invalid=3441, Unknown=0, NotChecked=0, Total=4692 [2022-02-23 21:07:06,607 INFO L87 Difference]: Start difference. First operand 86 states and 93 transitions. Second operand has 69 states, 69 states have (on average 2.0579710144927534) internal successors, (142), 68 states have internal predecessors, (142), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:07:45,185 WARN L232 SmtUtils]: Spent 9.17s on a formula simplification. DAG size of input: 230 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-23 21:08:14,068 WARN L232 SmtUtils]: Spent 9.80s on a formula simplification. DAG size of input: 223 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-23 21:08:54,947 WARN L232 SmtUtils]: Spent 12.14s on a formula simplification. DAG size of input: 216 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-23 21:08:57,000 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod (+ 23 c_main_~x~0) 4294967296))) (or (< .cse0 10000000) (not (< .cse0 100000000)))) (= |c_#NULL.base| |c_old(#NULL.base)|) (let ((.cse1 (mod (+ 8 c_main_~x~0) 4294967296))) (or (< .cse1 10000000) (not (< .cse1 100000000)))) (let ((.cse2 (mod (+ 18 c_main_~x~0) 4294967296))) (or (not (< .cse2 100000000)) (< .cse2 10000000))) (let ((.cse3 (mod (+ 34 c_main_~x~0) 4294967296))) (or (not (< .cse3 100000000)) (< .cse3 10000000))) (let ((.cse4 (mod (+ 22 c_main_~x~0) 4294967296))) (or (not (< .cse4 100000000)) (< .cse4 10000000))) (let ((.cse5 (mod (+ 10 c_main_~x~0) 4294967296))) (or (< .cse5 10000000) (not (< .cse5 100000000)))) (let ((.cse6 (mod (+ 17 c_main_~x~0) 4294967296))) (or (< .cse6 10000000) (not (< .cse6 100000000)))) (let ((.cse7 (mod (+ 16 c_main_~x~0) 4294967296))) (or (< .cse7 10000000) (not (< .cse7 100000000)))) (let ((.cse8 (mod (+ 25 c_main_~x~0) 4294967296))) (or (< .cse8 10000000) (not (< .cse8 100000000)))) (let ((.cse9 (mod (+ 21 c_main_~x~0) 4294967296))) (or (not (< .cse9 100000000)) (< .cse9 10000000))) (let ((.cse10 (mod (+ 4 c_main_~x~0) 4294967296))) (or (< .cse10 10000000) (not (< .cse10 100000000)))) (let ((.cse11 (mod (+ 13 c_main_~x~0) 4294967296))) (or (< .cse11 10000000) (not (< .cse11 100000000)))) (let ((.cse12 (mod (+ 6 c_main_~x~0) 4294967296))) (or (< .cse12 10000000) (not (< .cse12 100000000)))) (let ((.cse13 (mod (+ 33 c_main_~x~0) 4294967296))) (or (not (< .cse13 100000000)) (< .cse13 10000000))) (let ((.cse14 (mod (+ 29 c_main_~x~0) 4294967296))) (or (not (< .cse14 100000000)) (< .cse14 10000000))) (let ((.cse15 (mod (+ 15 c_main_~x~0) 4294967296))) (or (not (< .cse15 100000000)) (< .cse15 10000000))) (let ((.cse16 (mod (+ 31 c_main_~x~0) 4294967296))) (or (not (< .cse16 100000000)) (< .cse16 10000000))) (let ((.cse17 (mod (+ 14 c_main_~x~0) 4294967296))) (or (not (< .cse17 100000000)) (< .cse17 10000000))) (let ((.cse18 (mod (+ 12 c_main_~x~0) 4294967296))) (or (< .cse18 10000000) (not (< .cse18 100000000)))) (let ((.cse19 (mod (+ 28 c_main_~x~0) 4294967296))) (or (< .cse19 10000000) (not (< .cse19 100000000)))) (let ((.cse20 (mod (+ 26 c_main_~x~0) 4294967296))) (or (not (< .cse20 100000000)) (< .cse20 10000000))) (let ((.cse21 (mod (+ 32 c_main_~x~0) 4294967296))) (or (not (< .cse21 100000000)) (< .cse21 10000000))) (let ((.cse22 (mod (+ 2 c_main_~x~0) 4294967296))) (or (< .cse22 10000000) (not (< .cse22 100000000)))) (let ((.cse23 (mod (+ 20 c_main_~x~0) 4294967296))) (or (not (< .cse23 100000000)) (< .cse23 10000000))) (let ((.cse24 (mod (+ 30 c_main_~x~0) 4294967296))) (or (< .cse24 10000000) (not (< .cse24 100000000)))) (let ((.cse25 (mod (+ c_main_~x~0 24) 4294967296))) (or (not (< .cse25 100000000)) (< .cse25 10000000))) (= |c_#NULL.offset| |c_old(#NULL.offset)|) (< (mod c_main_~x~0 4294967296) 10000000) (let ((.cse26 (mod (+ c_main_~x~0 27) 4294967296))) (or (< .cse26 10000000) (not (< .cse26 100000000)))) (let ((.cse27 (mod (+ 19 c_main_~x~0) 4294967296))) (or (< .cse27 10000000) (not (< .cse27 100000000))))) is different from false [2022-02-23 21:09:38,981 WARN L232 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 203 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-23 21:10:04,169 WARN L232 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 202 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-23 21:10:46,867 WARN L232 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 195 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-23 21:11:20,955 WARN L232 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 188 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-23 21:12:15,596 WARN L232 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 174 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-23 21:14:14,999 WARN L232 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 139 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-23 21:15:59,006 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod (+ 23 c_main_~x~0) 4294967296))) (or (< .cse0 10000000) (not (< .cse0 100000000)))) (= |c_#NULL.base| |c_old(#NULL.base)|) (let ((.cse1 (mod c_main_~x~0 4294967296))) (or (not (< .cse1 100000000)) (< .cse1 10000000))) (let ((.cse2 (mod (+ 8 c_main_~x~0) 4294967296))) (or (< .cse2 10000000) (not (< .cse2 100000000)))) (let ((.cse3 (mod (+ 18 c_main_~x~0) 4294967296))) (or (not (< .cse3 100000000)) (< .cse3 10000000))) (let ((.cse4 (mod (+ 34 c_main_~x~0) 4294967296))) (or (not (< .cse4 100000000)) (< .cse4 10000000))) (let ((.cse5 (mod (+ 22 c_main_~x~0) 4294967296))) (or (not (< .cse5 100000000)) (< .cse5 10000000))) (let ((.cse6 (mod (+ 10 c_main_~x~0) 4294967296))) (or (< .cse6 10000000) (not (< .cse6 100000000)))) (let ((.cse7 (mod (+ 17 c_main_~x~0) 4294967296))) (or (< .cse7 10000000) (not (< .cse7 100000000)))) (let ((.cse8 (mod (+ 16 c_main_~x~0) 4294967296))) (or (< .cse8 10000000) (not (< .cse8 100000000)))) (let ((.cse9 (mod (+ 25 c_main_~x~0) 4294967296))) (or (< .cse9 10000000) (not (< .cse9 100000000)))) (let ((.cse10 (mod (+ 36 c_main_~x~0) 4294967296))) (or (< .cse10 10000000) (not (< .cse10 100000000)))) (let ((.cse11 (mod (+ 21 c_main_~x~0) 4294967296))) (or (not (< .cse11 100000000)) (< .cse11 10000000))) (let ((.cse12 (mod (+ 4 c_main_~x~0) 4294967296))) (or (< .cse12 10000000) (not (< .cse12 100000000)))) (let ((.cse13 (mod (+ 13 c_main_~x~0) 4294967296))) (or (< .cse13 10000000) (not (< .cse13 100000000)))) (let ((.cse14 (mod (+ 35 c_main_~x~0) 4294967296))) (or (not (< .cse14 100000000)) (< .cse14 10000000))) (let ((.cse15 (mod (+ 6 c_main_~x~0) 4294967296))) (or (< .cse15 10000000) (not (< .cse15 100000000)))) (let ((.cse16 (mod (+ 33 c_main_~x~0) 4294967296))) (or (not (< .cse16 100000000)) (< .cse16 10000000))) (let ((.cse17 (mod (+ 29 c_main_~x~0) 4294967296))) (or (not (< .cse17 100000000)) (< .cse17 10000000))) (let ((.cse18 (mod (+ 15 c_main_~x~0) 4294967296))) (or (not (< .cse18 100000000)) (< .cse18 10000000))) (let ((.cse19 (mod (+ 31 c_main_~x~0) 4294967296))) (or (not (< .cse19 100000000)) (< .cse19 10000000))) (let ((.cse20 (mod (+ 14 c_main_~x~0) 4294967296))) (or (not (< .cse20 100000000)) (< .cse20 10000000))) (let ((.cse21 (mod (+ 12 c_main_~x~0) 4294967296))) (or (< .cse21 10000000) (not (< .cse21 100000000)))) (let ((.cse22 (mod (+ 28 c_main_~x~0) 4294967296))) (or (< .cse22 10000000) (not (< .cse22 100000000)))) (let ((.cse23 (mod (+ 26 c_main_~x~0) 4294967296))) (or (not (< .cse23 100000000)) (< .cse23 10000000))) (let ((.cse24 (mod (+ c_main_~x~0 37) 4294967296))) (or (not (< .cse24 100000000)) (< .cse24 10000000))) (let ((.cse25 (mod (+ 32 c_main_~x~0) 4294967296))) (or (not (< .cse25 100000000)) (< .cse25 10000000))) (let ((.cse26 (mod (+ 2 c_main_~x~0) 4294967296))) (or (< .cse26 10000000) (not (< .cse26 100000000)))) (let ((.cse27 (mod (+ 20 c_main_~x~0) 4294967296))) (or (not (< .cse27 100000000)) (< .cse27 10000000))) (let ((.cse28 (mod (+ 30 c_main_~x~0) 4294967296))) (or (< .cse28 10000000) (not (< .cse28 100000000)))) (let ((.cse29 (mod (+ c_main_~x~0 24) 4294967296))) (or (not (< .cse29 100000000)) (< .cse29 10000000))) (= |c_#NULL.offset| |c_old(#NULL.offset)|) (let ((.cse30 (mod (+ c_main_~x~0 27) 4294967296))) (or (< .cse30 10000000) (not (< .cse30 100000000)))) (let ((.cse31 (mod (+ 19 c_main_~x~0) 4294967296))) (or (< .cse31 10000000) (not (< .cse31 100000000))))) is different from false [2022-02-23 21:15:59,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 21:15:59,038 INFO L93 Difference]: Finished difference Result 182 states and 229 transitions. [2022-02-23 21:15:59,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-23 21:15:59,038 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 2.0579710144927534) internal successors, (142), 68 states have internal predecessors, (142), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-02-23 21:15:59,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 21:15:59,039 INFO L225 Difference]: With dead ends: 182 [2022-02-23 21:15:59,039 INFO L226 Difference]: Without dead ends: 152 [2022-02-23 21:15:59,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 131 SyntacticMatches, 2 SemanticMatches, 127 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1860 ImplicationChecksByTransitivity, 533.5s TimeCoverageRelationStatistics Valid=4221, Invalid=11762, Unknown=27, NotChecked=502, Total=16512 [2022-02-23 21:15:59,044 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 121 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-23 21:15:59,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 217 Invalid, 2384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 1885 Invalid, 0 Unknown, 2 Unchecked, 1.4s Time] [2022-02-23 21:15:59,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-02-23 21:15:59,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2022-02-23 21:15:59,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 147 states have (on average 1.054421768707483) internal successors, (155), 147 states have internal predecessors, (155), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:15:59,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 159 transitions. [2022-02-23 21:15:59,062 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 159 transitions. Word has length 85 [2022-02-23 21:15:59,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 21:15:59,062 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 159 transitions. [2022-02-23 21:15:59,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 2.0579710144927534) internal successors, (142), 68 states have internal predecessors, (142), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:15:59,062 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 159 transitions. [2022-02-23 21:15:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-02-23 21:15:59,066 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 21:15:59,066 INFO L514 BasicCegarLoop]: trace histogram [70, 58, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 21:15:59,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-23 21:15:59,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:15:59,267 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 21:15:59,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 21:15:59,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1736138738, now seen corresponding path program 6 times [2022-02-23 21:15:59,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 21:15:59,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757797825] [2022-02-23 21:15:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:15:59,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 21:15:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:16:01,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 21:16:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:16:01,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 1357 proven. 3422 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-23 21:16:01,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 21:16:01,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757797825] [2022-02-23 21:16:01,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757797825] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 21:16:01,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437179714] [2022-02-23 21:16:01,025 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-23 21:16:01,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:16:01,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 21:16:01,028 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) [2022-02-23 21:16:01,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-23 21:16:21,533 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 51 check-sat command(s) [2022-02-23 21:16:21,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-23 21:16:21,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 68 conjunts are in the unsatisfiable core [2022-02-23 21:16:21,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 21:16:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2022 proven. 984 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2022-02-23 21:16:23,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 21:16:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 1450 proven. 144 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-02-23 21:16:26,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437179714] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 21:16:26,576 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 21:16:26,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 28, 19] total 105 [2022-02-23 21:16:26,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652419840] [2022-02-23 21:16:26,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 21:16:26,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-02-23 21:16:26,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 21:16:26,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-02-23 21:16:26,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2717, Invalid=8203, Unknown=0, NotChecked=0, Total=10920 [2022-02-23 21:16:26,584 INFO L87 Difference]: Start difference. First operand 152 states and 159 transitions. Second operand has 105 states, 104 states have (on average 2.0384615384615383) internal successors, (212), 103 states have internal predecessors, (212), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:19:24,687 WARN L232 SmtUtils]: Spent 42.24s on a formula simplification. DAG size of input: 93 DAG size of output: 63 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-23 21:19:26,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 21:19:26,725 INFO L93 Difference]: Finished difference Result 245 states and 303 transitions. [2022-02-23 21:19:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-23 21:19:26,726 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 104 states have (on average 2.0384615384615383) internal successors, (212), 103 states have internal predecessors, (212), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-02-23 21:19:26,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 21:19:26,727 INFO L225 Difference]: With dead ends: 245 [2022-02-23 21:19:26,727 INFO L226 Difference]: Without dead ends: 212 [2022-02-23 21:19:26,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 286 SyntacticMatches, 1 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6612 ImplicationChecksByTransitivity, 181.0s TimeCoverageRelationStatistics Valid=8271, Invalid=35201, Unknown=0, NotChecked=0, Total=43472 [2022-02-23 21:19:26,733 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 252 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 6389 mSolverCounterSat, 903 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 7292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 903 IncrementalHoareTripleChecker+Valid, 6389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-23 21:19:26,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 116 Invalid, 7292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [903 Valid, 6389 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-02-23 21:19:26,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-02-23 21:19:26,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 182. [2022-02-23 21:19:26,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.0847457627118644) internal successors, (192), 177 states have internal predecessors, (192), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:19:26,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 196 transitions. [2022-02-23 21:19:26,766 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 196 transitions. Word has length 151 [2022-02-23 21:19:26,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 21:19:26,767 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 196 transitions. [2022-02-23 21:19:26,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 104 states have (on average 2.0384615384615383) internal successors, (212), 103 states have internal predecessors, (212), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:19:26,767 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 196 transitions. [2022-02-23 21:19:26,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-23 21:19:26,772 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 21:19:26,772 INFO L514 BasicCegarLoop]: trace histogram [85, 59, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 21:19:26,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-23 21:19:26,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:19:26,979 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 21:19:26,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 21:19:26,980 INFO L85 PathProgramCache]: Analyzing trace with hash 117892418, now seen corresponding path program 7 times [2022-02-23 21:19:26,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 21:19:26,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641487741] [2022-02-23 21:19:26,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 21:19:26,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 21:19:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:19:28,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 21:19:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:19:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 7225 backedges. 3060 proven. 3540 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2022-02-23 21:19:28,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 21:19:28,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641487741] [2022-02-23 21:19:28,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641487741] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 21:19:28,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422249773] [2022-02-23 21:19:28,815 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-23 21:19:28,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 21:19:28,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 21:19:28,820 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) [2022-02-23 21:19:28,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-23 21:19:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 21:19:28,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 130 conjunts are in the unsatisfiable core [2022-02-23 21:19:28,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 21:19:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 7225 backedges. 2752 proven. 4032 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-02-23 21:19:29,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 21:19:38,153 INFO L134 CoverageAnalysis]: Checked inductivity of 7225 backedges. 2752 proven. 4032 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-02-23 21:19:38,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422249773] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 21:19:38,153 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 21:19:38,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 66, 67] total 133 [2022-02-23 21:19:38,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983759129] [2022-02-23 21:19:38,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 21:19:38,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 133 states [2022-02-23 21:19:38,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 21:19:38,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2022-02-23 21:19:38,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4549, Invalid=13007, Unknown=0, NotChecked=0, Total=17556 [2022-02-23 21:19:38,157 INFO L87 Difference]: Start difference. First operand 182 states and 196 transitions. Second operand has 133 states, 133 states have (on average 2.030075187969925) internal successors, (270), 132 states have internal predecessors, (270), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 21:19:44,408 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod (+ 23 c_main_~x~0) 4294967296))) (or (< .cse0 10000000) (not (< .cse0 100000000)))) (let ((.cse1 (mod (+ 62 c_main_~x~0) 4294967296))) (or (< .cse1 10000000) (not (< .cse1 100000000)))) (= |c_#NULL.base| |c_old(#NULL.base)|) (let ((.cse2 (mod (+ 8 c_main_~x~0) 4294967296))) (or (< .cse2 10000000) (not (< .cse2 100000000)))) (let ((.cse3 (mod (+ 60 c_main_~x~0) 4294967296))) (or (< .cse3 10000000) (not (< .cse3 100000000)))) (let ((.cse4 (mod (+ 18 c_main_~x~0) 4294967296))) (or (not (< .cse4 100000000)) (< .cse4 10000000))) (let ((.cse5 (mod (+ 34 c_main_~x~0) 4294967296))) (or (not (< .cse5 100000000)) (< .cse5 10000000))) (let ((.cse6 (mod (+ 44 c_main_~x~0) 4294967296))) (or (< .cse6 10000000) (not (< .cse6 100000000)))) (let ((.cse7 (mod (+ 22 c_main_~x~0) 4294967296))) (or (not (< .cse7 100000000)) (< .cse7 10000000))) (let ((.cse8 (mod (+ 10 c_main_~x~0) 4294967296))) (or (< .cse8 10000000) (not (< .cse8 100000000)))) (let ((.cse9 (mod (+ 41 c_main_~x~0) 4294967296))) (or (not (< .cse9 100000000)) (< .cse9 10000000))) (let ((.cse10 (mod (+ 57 c_main_~x~0) 4294967296))) (or (< .cse10 10000000) (not (< .cse10 100000000)))) (let ((.cse11 (mod (+ 48 c_main_~x~0) 4294967296))) (or (not (< .cse11 100000000)) (< .cse11 10000000))) (let ((.cse12 (mod (+ 46 c_main_~x~0) 4294967296))) (or (not (< .cse12 100000000)) (< .cse12 10000000))) (let ((.cse13 (mod (+ c_main_~x~0 54) 4294967296))) (or (< .cse13 10000000) (not (< .cse13 100000000)))) (let ((.cse14 (mod (+ 17 c_main_~x~0) 4294967296))) (or (< .cse14 10000000) (not (< .cse14 100000000)))) (let ((.cse15 (mod (+ 66 c_main_~x~0) 4294967296))) (or (not (< .cse15 100000000)) (< .cse15 10000000))) (let ((.cse16 (mod (+ 42 c_main_~x~0) 4294967296))) (or (not (< .cse16 100000000)) (< .cse16 10000000))) (let ((.cse17 (mod (+ c_main_~x~0 50) 4294967296))) (or (< .cse17 10000000) (not (< .cse17 100000000)))) (let ((.cse18 (mod (+ 52 c_main_~x~0) 4294967296))) (or (< .cse18 10000000) (not (< .cse18 100000000)))) (let ((.cse19 (mod (+ 67 c_main_~x~0) 4294967296))) (or (not (< .cse19 100000000)) (< .cse19 10000000))) (let ((.cse20 (mod (+ 16 c_main_~x~0) 4294967296))) (or (< .cse20 10000000) (not (< .cse20 100000000)))) (let ((.cse21 (mod (+ 25 c_main_~x~0) 4294967296))) (or (< .cse21 10000000) (not (< .cse21 100000000)))) (let ((.cse22 (mod (+ 64 c_main_~x~0) 4294967296))) (or (< .cse22 10000000) (not (< .cse22 100000000)))) (let ((.cse23 (mod (+ 36 c_main_~x~0) 4294967296))) (or (< .cse23 10000000) (not (< .cse23 100000000)))) (let ((.cse24 (mod (+ c_main_~x~0 61) 4294967296))) (or (< .cse24 10000000) (not (< .cse24 100000000)))) (let ((.cse25 (mod (+ 9 c_main_~x~0) 4294967296))) (or (not (< .cse25 100000000)) (< .cse25 10000000))) (let ((.cse26 (mod (+ 21 c_main_~x~0) 4294967296))) (or (not (< .cse26 100000000)) (< .cse26 10000000))) (let ((.cse27 (mod (+ 55 c_main_~x~0) 4294967296))) (or (not (< .cse27 100000000)) (< .cse27 10000000))) (let ((.cse28 (mod (+ 45 c_main_~x~0) 4294967296))) (or (< .cse28 10000000) (not (< .cse28 100000000)))) (let ((.cse29 (mod (+ 38 c_main_~x~0) 4294967296))) (or (not (< .cse29 100000000)) (< .cse29 10000000))) (let ((.cse30 (mod (+ 4 c_main_~x~0) 4294967296))) (or (< .cse30 10000000) (not (< .cse30 100000000)))) (let ((.cse31 (mod (+ 13 c_main_~x~0) 4294967296))) (or (< .cse31 10000000) (not (< .cse31 100000000)))) (let ((.cse32 (mod (+ 53 c_main_~x~0) 4294967296))) (or (not (< .cse32 100000000)) (< .cse32 10000000))) (let ((.cse33 (mod (+ 35 c_main_~x~0) 4294967296))) (or (not (< .cse33 100000000)) (< .cse33 10000000))) (let ((.cse34 (mod (+ 6 c_main_~x~0) 4294967296))) (or (< .cse34 10000000) (not (< .cse34 100000000)))) (let ((.cse35 (mod (+ 33 c_main_~x~0) 4294967296))) (or (not (< .cse35 100000000)) (< .cse35 10000000))) (let ((.cse36 (mod (+ 29 c_main_~x~0) 4294967296))) (or (not (< .cse36 100000000)) (< .cse36 10000000))) (let ((.cse37 (mod (+ 39 c_main_~x~0) 4294967296))) (or (< .cse37 10000000) (not (< .cse37 100000000)))) (let ((.cse38 (mod (+ 49 c_main_~x~0) 4294967296))) (or (not (< .cse38 100000000)) (< .cse38 10000000))) (let ((.cse39 (mod (+ 59 c_main_~x~0) 4294967296))) (or (not (< .cse39 100000000)) (< .cse39 10000000))) (let ((.cse40 (mod (+ 15 c_main_~x~0) 4294967296))) (or (not (< .cse40 100000000)) (< .cse40 10000000))) (let ((.cse41 (mod (+ 65 c_main_~x~0) 4294967296))) (or (not (< .cse41 100000000)) (< .cse41 10000000))) (let ((.cse42 (mod (+ 43 c_main_~x~0) 4294967296))) (or (not (< .cse42 100000000)) (< .cse42 10000000))) (let ((.cse43 (mod (+ 31 c_main_~x~0) 4294967296))) (or (not (< .cse43 100000000)) (< .cse43 10000000))) (let ((.cse44 (mod (+ 14 c_main_~x~0) 4294967296))) (or (not (< .cse44 100000000)) (< .cse44 10000000))) (let ((.cse45 (mod (+ 56 c_main_~x~0) 4294967296))) (or (not (< .cse45 100000000)) (< .cse45 10000000))) (let ((.cse46 (mod (+ 47 c_main_~x~0) 4294967296))) (or (not (< .cse46 100000000)) (< .cse46 10000000))) (let ((.cse47 (mod (+ 12 c_main_~x~0) 4294967296))) (or (< .cse47 10000000) (not (< .cse47 100000000)))) (let ((.cse48 (mod (+ 28 c_main_~x~0) 4294967296))) (or (< .cse48 10000000) (not (< .cse48 100000000)))) (let ((.cse49 (mod (+ 58 c_main_~x~0) 4294967296))) (or (< .cse49 10000000) (not (< .cse49 100000000)))) (let ((.cse50 (mod (+ 26 c_main_~x~0) 4294967296))) (or (not (< .cse50 100000000)) (< .cse50 10000000))) (let ((.cse51 (mod (+ c_main_~x~0 37) 4294967296))) (or (not (< .cse51 100000000)) (< .cse51 10000000))) (let ((.cse52 (mod (+ 32 c_main_~x~0) 4294967296))) (or (not (< .cse52 100000000)) (< .cse52 10000000))) (let ((.cse53 (mod (+ 63 c_main_~x~0) 4294967296))) (or (< .cse53 10000000) (not (< .cse53 100000000)))) (let ((.cse54 (mod (+ 2 c_main_~x~0) 4294967296))) (or (< .cse54 10000000) (not (< .cse54 100000000)))) (let ((.cse55 (mod (+ 20 c_main_~x~0) 4294967296))) (or (not (< .cse55 100000000)) (< .cse55 10000000))) (let ((.cse56 (mod (+ 30 c_main_~x~0) 4294967296))) (or (< .cse56 10000000) (not (< .cse56 100000000)))) (let ((.cse57 (mod (+ c_main_~x~0 11) 4294967296))) (or (< .cse57 10000000) (not (< .cse57 100000000)))) (let ((.cse58 (mod (+ 51 c_main_~x~0) 4294967296))) (or (not (< .cse58 100000000)) (< .cse58 10000000))) (let ((.cse59 (mod (+ c_main_~x~0 24) 4294967296))) (or (not (< .cse59 100000000)) (< .cse59 10000000))) (= |c_#NULL.offset| |c_old(#NULL.offset)|) (< (mod c_main_~x~0 4294967296) 10000000) (let ((.cse60 (mod (+ c_main_~x~0 27) 4294967296))) (or (< .cse60 10000000) (not (< .cse60 100000000)))) (let ((.cse61 (mod (+ 19 c_main_~x~0) 4294967296))) (or (< .cse61 10000000) (not (< .cse61 100000000)))) (let ((.cse62 (mod (+ 40 c_main_~x~0) 4294967296))) (or (< .cse62 10000000) (not (< .cse62 100000000))))) is different from false