/usr/bin/java -ea -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/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/prodbin-ll_unwindbound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-14 22:48:17,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-14 22:48:17,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-14 22:48:17,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-14 22:48:17,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-14 22:48:17,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-14 22:48:17,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-14 22:48:17,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-14 22:48:17,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-14 22:48:17,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-14 22:48:17,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-14 22:48:17,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-14 22:48:17,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-14 22:48:17,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-14 22:48:17,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-14 22:48:17,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-14 22:48:17,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-14 22:48:17,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-14 22:48:17,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-14 22:48:17,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-14 22:48:17,050 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-14 22:48:17,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-14 22:48:17,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-14 22:48:17,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-14 22:48:17,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-14 22:48:17,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-14 22:48:17,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-14 22:48:17,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-14 22:48:17,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-14 22:48:17,063 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-14 22:48:17,071 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-14 22:48:17,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-14 22:48:17,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-14 22:48:17,072 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-14 22:48:17,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-14 22:48:17,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-14 22:48:17,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-14 22:48:17,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-14 22:48:17,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-14 22:48:17,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-14 22:48:17,073 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-14 22:48:17,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-14 22:48:17,073 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-14 22:48:17,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-14 22:48:17,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-14 22:48:17,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-14 22:48:17,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-14 22:48:17,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-14 22:48:17,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 22:48:17,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-14 22:48:17,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-14 22:48:17,074 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-14 22:48:17,074 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-14 22:48:17,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-14 22:48:17,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-14 22:48:17,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-14 22:48:17,270 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-14 22:48:17,271 INFO L275 PluginConnector]: CDTParser initialized [2022-04-14 22:48:17,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/prodbin-ll_unwindbound2.c [2022-04-14 22:48:17,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6266617f9/8ca227104d8a497aa150d0429c9a2a2e/FLAG116d256e7 [2022-04-14 22:48:17,652 INFO L306 CDTParser]: Found 1 translation units. [2022-04-14 22:48:17,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/prodbin-ll_unwindbound2.c [2022-04-14 22:48:17,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6266617f9/8ca227104d8a497aa150d0429c9a2a2e/FLAG116d256e7 [2022-04-14 22:48:18,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6266617f9/8ca227104d8a497aa150d0429c9a2a2e [2022-04-14 22:48:18,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-14 22:48:18,106 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-14 22:48:18,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-14 22:48:18,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-14 22:48:18,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-14 22:48:18,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 10:48:18" (1/1) ... [2022-04-14 22:48:18,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d53b712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:48:18, skipping insertion in model container [2022-04-14 22:48:18,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 10:48:18" (1/1) ... [2022-04-14 22:48:18,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-14 22:48:18,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-14 22:48:18,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/prodbin-ll_unwindbound2.c[537,550] [2022-04-14 22:48:18,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 22:48:18,248 INFO L203 MainTranslator]: Completed pre-run [2022-04-14 22:48:18,260 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/prodbin-ll_unwindbound2.c[537,550] [2022-04-14 22:48:18,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 22:48:18,285 INFO L208 MainTranslator]: Completed translation [2022-04-14 22:48:18,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:48:18 WrapperNode [2022-04-14 22:48:18,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-14 22:48:18,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-14 22:48:18,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-14 22:48:18,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-14 22:48:18,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:48:18" (1/1) ... [2022-04-14 22:48:18,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:48:18" (1/1) ... [2022-04-14 22:48:18,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:48:18" (1/1) ... [2022-04-14 22:48:18,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:48:18" (1/1) ... [2022-04-14 22:48:18,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:48:18" (1/1) ... [2022-04-14 22:48:18,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:48:18" (1/1) ... [2022-04-14 22:48:18,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:48:18" (1/1) ... [2022-04-14 22:48:18,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-14 22:48:18,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-14 22:48:18,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-14 22:48:18,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-14 22:48:18,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:48:18" (1/1) ... [2022-04-14 22:48:18,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 22:48:18,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:48:18,348 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) [2022-04-14 22:48:18,359 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 [2022-04-14 22:48:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-14 22:48:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-14 22:48:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-14 22:48:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-14 22:48:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-14 22:48:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-14 22:48:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-14 22:48:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-14 22:48:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-14 22:48:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-14 22:48:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-14 22:48:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-14 22:48:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-14 22:48:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-14 22:48:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-14 22:48:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-14 22:48:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-14 22:48:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-14 22:48:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-14 22:48:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-14 22:48:18,422 INFO L234 CfgBuilder]: Building ICFG [2022-04-14 22:48:18,424 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-14 22:48:18,556 INFO L275 CfgBuilder]: Performing block encoding [2022-04-14 22:48:18,560 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-14 22:48:18,561 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-14 22:48:18,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 10:48:18 BoogieIcfgContainer [2022-04-14 22:48:18,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-14 22:48:18,562 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-14 22:48:18,562 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-14 22:48:18,567 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-14 22:48:18,569 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 10:48:18" (1/1) ... [2022-04-14 22:48:18,570 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-14 22:48:18,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 10:48:18 BasicIcfg [2022-04-14 22:48:18,602 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-14 22:48:18,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-14 22:48:18,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-14 22:48:18,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-14 22:48:18,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 10:48:18" (1/4) ... [2022-04-14 22:48:18,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783017ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 10:48:18, skipping insertion in model container [2022-04-14 22:48:18,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:48:18" (2/4) ... [2022-04-14 22:48:18,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783017ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 10:48:18, skipping insertion in model container [2022-04-14 22:48:18,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 10:48:18" (3/4) ... [2022-04-14 22:48:18,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783017ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 10:48:18, skipping insertion in model container [2022-04-14 22:48:18,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 10:48:18" (4/4) ... [2022-04-14 22:48:18,618 INFO L111 eAbstractionObserver]: Analyzing ICFG prodbin-ll_unwindbound2.cJordan [2022-04-14 22:48:18,621 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-14 22:48:18,621 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-14 22:48:18,646 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-14 22:48:18,651 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-14 22:48:18,651 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-14 22:48:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:48:18,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-14 22:48:18,666 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:48:18,666 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:48:18,666 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:48:18,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:48:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1957529129, now seen corresponding path program 1 times [2022-04-14 22:48:18,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:48:18,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115665653] [2022-04-14 22:48:18,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:48:18,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:48:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:18,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 22:48:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:18,874 INFO L290 TraceCheckUtils]: 0: Hoare triple {42#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {33#true} is VALID [2022-04-14 22:48:18,875 INFO L290 TraceCheckUtils]: 1: Hoare triple {33#true} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-14 22:48:18,875 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {33#true} {33#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-14 22:48:18,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-14 22:48:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:18,884 INFO L290 TraceCheckUtils]: 0: Hoare triple {33#true} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {33#true} is VALID [2022-04-14 22:48:18,884 INFO L290 TraceCheckUtils]: 1: Hoare triple {33#true} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-14 22:48:18,885 INFO L290 TraceCheckUtils]: 2: Hoare triple {33#true} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-14 22:48:18,885 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {33#true} {33#true} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {33#true} is VALID [2022-04-14 22:48:18,888 INFO L272 TraceCheckUtils]: 0: Hoare triple {33#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {42#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 22:48:18,889 INFO L290 TraceCheckUtils]: 1: Hoare triple {42#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {33#true} is VALID [2022-04-14 22:48:18,889 INFO L290 TraceCheckUtils]: 2: Hoare triple {33#true} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-14 22:48:18,889 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {33#true} {33#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-14 22:48:18,889 INFO L272 TraceCheckUtils]: 4: Hoare triple {33#true} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-14 22:48:18,890 INFO L290 TraceCheckUtils]: 5: Hoare triple {33#true} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {33#true} is VALID [2022-04-14 22:48:18,890 INFO L272 TraceCheckUtils]: 6: Hoare triple {33#true} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {33#true} is VALID [2022-04-14 22:48:18,890 INFO L290 TraceCheckUtils]: 7: Hoare triple {33#true} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {33#true} is VALID [2022-04-14 22:48:18,890 INFO L290 TraceCheckUtils]: 8: Hoare triple {33#true} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-14 22:48:18,890 INFO L290 TraceCheckUtils]: 9: Hoare triple {33#true} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#true} is VALID [2022-04-14 22:48:18,891 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {33#true} {33#true} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {33#true} is VALID [2022-04-14 22:48:18,892 INFO L290 TraceCheckUtils]: 11: Hoare triple {33#true} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {33#true} is VALID [2022-04-14 22:48:18,892 INFO L290 TraceCheckUtils]: 12: Hoare triple {33#true} [77] L33-3-->L33-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-14 22:48:18,893 INFO L272 TraceCheckUtils]: 13: Hoare triple {34#false} [81] L33-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~z~0_8 (* v_main_~a~0_8 v_main_~b~0_10)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~b~0=v_main_~b~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~z~0, main_~b~0, main_~a~0] {34#false} is VALID [2022-04-14 22:48:18,893 INFO L290 TraceCheckUtils]: 14: Hoare triple {34#false} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {34#false} is VALID [2022-04-14 22:48:18,893 INFO L290 TraceCheckUtils]: 15: Hoare triple {34#false} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-14 22:48:18,893 INFO L290 TraceCheckUtils]: 16: Hoare triple {34#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {34#false} is VALID [2022-04-14 22:48:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:48:18,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:48:18,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115665653] [2022-04-14 22:48:18,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115665653] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 22:48:18,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 22:48:18,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-14 22:48:18,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609500991] [2022-04-14 22:48:18,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:48:18,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-14 22:48:18,902 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:48:18,904 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:48:18,929 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:48:18,930 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-14 22:48:18,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:48:18,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-14 22:48:18,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-14 22:48:18,955 INFO L87 Difference]: Start difference. First operand has 30 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:48:19,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:19,071 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-04-14 22:48:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-14 22:48:19,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-14 22:48:19,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:48:19,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:48:19,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2022-04-14 22:48:19,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:48:19,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2022-04-14 22:48:19,079 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 38 transitions. [2022-04-14 22:48:19,122 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:48:19,129 INFO L225 Difference]: With dead ends: 31 [2022-04-14 22:48:19,129 INFO L226 Difference]: Without dead ends: 26 [2022-04-14 22:48:19,131 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-14 22:48:19,135 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:48:19,135 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 35 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:48:19,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-04-14 22:48:19,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2022-04-14 22:48:19,156 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:48:19,156 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-14 22:48:19,157 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-14 22:48:19,157 INFO L87 Difference]: Start difference. First operand 26 states. Second operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-14 22:48:19,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:19,160 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-14 22:48:19,160 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-14 22:48:19,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:48:19,160 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:48:19,160 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 26 states. [2022-04-14 22:48:19,161 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 26 states. [2022-04-14 22:48:19,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:19,163 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-14 22:48:19,163 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-14 22:48:19,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:48:19,163 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:48:19,163 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:48:19,163 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:48:19,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-14 22:48:19,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-04-14 22:48:19,165 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 17 [2022-04-14 22:48:19,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:48:19,166 INFO L478 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-04-14 22:48:19,166 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:48:19,166 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-14 22:48:19,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-14 22:48:19,166 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:48:19,166 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:48:19,167 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-14 22:48:19,167 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:48:19,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:48:19,167 INFO L85 PathProgramCache]: Analyzing trace with hash 583261658, now seen corresponding path program 1 times [2022-04-14 22:48:19,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:48:19,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282042128] [2022-04-14 22:48:19,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:48:19,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:48:19,179 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:48:19,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1243733183] [2022-04-14 22:48:19,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:48:19,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:48:19,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:48:19,181 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) [2022-04-14 22:48:19,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-14 22:48:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:19,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-14 22:48:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:19,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:48:19,343 INFO L272 TraceCheckUtils]: 0: Hoare triple {153#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {153#true} is VALID [2022-04-14 22:48:19,344 INFO L290 TraceCheckUtils]: 1: Hoare triple {153#true} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {161#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:19,344 INFO L290 TraceCheckUtils]: 2: Hoare triple {161#(<= ~counter~0 0)} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {161#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:19,345 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {161#(<= ~counter~0 0)} {153#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {161#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:19,345 INFO L272 TraceCheckUtils]: 4: Hoare triple {161#(<= ~counter~0 0)} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {161#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:19,346 INFO L290 TraceCheckUtils]: 5: Hoare triple {161#(<= ~counter~0 0)} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {161#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:19,346 INFO L272 TraceCheckUtils]: 6: Hoare triple {161#(<= ~counter~0 0)} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {161#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:19,347 INFO L290 TraceCheckUtils]: 7: Hoare triple {161#(<= ~counter~0 0)} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {161#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:19,347 INFO L290 TraceCheckUtils]: 8: Hoare triple {161#(<= ~counter~0 0)} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {161#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:19,347 INFO L290 TraceCheckUtils]: 9: Hoare triple {161#(<= ~counter~0 0)} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {161#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:19,348 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {161#(<= ~counter~0 0)} {161#(<= ~counter~0 0)} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {161#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:19,348 INFO L290 TraceCheckUtils]: 11: Hoare triple {161#(<= ~counter~0 0)} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {161#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:19,349 INFO L290 TraceCheckUtils]: 12: Hoare triple {161#(<= ~counter~0 0)} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {195#(<= |main_#t~post6| 0)} is VALID [2022-04-14 22:48:19,349 INFO L290 TraceCheckUtils]: 13: Hoare triple {195#(<= |main_#t~post6| 0)} [82] L33-1-->L33-4: Formula: (not (< |v_main_#t~post6_3| 2)) InVars {main_#t~post6=|v_main_#t~post6_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {154#false} is VALID [2022-04-14 22:48:19,349 INFO L272 TraceCheckUtils]: 14: Hoare triple {154#false} [81] L33-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~z~0_8 (* v_main_~a~0_8 v_main_~b~0_10)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~b~0=v_main_~b~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~z~0, main_~b~0, main_~a~0] {154#false} is VALID [2022-04-14 22:48:19,350 INFO L290 TraceCheckUtils]: 15: Hoare triple {154#false} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {154#false} is VALID [2022-04-14 22:48:19,350 INFO L290 TraceCheckUtils]: 16: Hoare triple {154#false} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {154#false} is VALID [2022-04-14 22:48:19,350 INFO L290 TraceCheckUtils]: 17: Hoare triple {154#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {154#false} is VALID [2022-04-14 22:48:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:48:19,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-14 22:48:19,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:48:19,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282042128] [2022-04-14 22:48:19,351 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:48:19,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243733183] [2022-04-14 22:48:19,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243733183] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 22:48:19,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 22:48:19,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-14 22:48:19,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822638089] [2022-04-14 22:48:19,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:48:19,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-04-14 22:48:19,353 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:48:19,353 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-14 22:48:19,368 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:48:19,368 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-14 22:48:19,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:48:19,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-14 22:48:19,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-14 22:48:19,369 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-14 22:48:19,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:19,415 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-04-14 22:48:19,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-14 22:48:19,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-04-14 22:48:19,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:48:19,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-14 22:48:19,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2022-04-14 22:48:19,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-14 22:48:19,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2022-04-14 22:48:19,419 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 31 transitions. [2022-04-14 22:48:19,439 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:48:19,440 INFO L225 Difference]: With dead ends: 27 [2022-04-14 22:48:19,440 INFO L226 Difference]: Without dead ends: 27 [2022-04-14 22:48:19,440 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-14 22:48:19,441 INFO L913 BasicCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:48:19,442 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:48:19,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-04-14 22:48:19,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-04-14 22:48:19,444 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:48:19,444 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-14 22:48:19,444 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-14 22:48:19,444 INFO L87 Difference]: Start difference. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-14 22:48:19,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:19,446 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-04-14 22:48:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-14 22:48:19,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:48:19,446 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:48:19,447 INFO L74 IsIncluded]: Start isIncluded. First operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states. [2022-04-14 22:48:19,447 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states. [2022-04-14 22:48:19,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:19,448 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-04-14 22:48:19,449 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-14 22:48:19,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:48:19,449 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:48:19,449 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:48:19,449 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:48:19,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-14 22:48:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-04-14 22:48:19,451 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2022-04-14 22:48:19,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:48:19,451 INFO L478 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-04-14 22:48:19,451 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-14 22:48:19,451 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-14 22:48:19,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-14 22:48:19,452 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:48:19,452 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:48:19,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-14 22:48:19,674 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:48:19,674 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:48:19,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:48:19,675 INFO L85 PathProgramCache]: Analyzing trace with hash 584363925, now seen corresponding path program 1 times [2022-04-14 22:48:19,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:48:19,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225866873] [2022-04-14 22:48:19,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:48:19,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:48:19,686 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:48:19,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745769587] [2022-04-14 22:48:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:48:19,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:48:19,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:48:19,688 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) [2022-04-14 22:48:19,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-14 22:48:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:19,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-04-14 22:48:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:19,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:48:19,837 INFO L272 TraceCheckUtils]: 0: Hoare triple {318#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {318#true} is VALID [2022-04-14 22:48:19,837 INFO L290 TraceCheckUtils]: 1: Hoare triple {318#true} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {318#true} is VALID [2022-04-14 22:48:19,837 INFO L290 TraceCheckUtils]: 2: Hoare triple {318#true} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {318#true} is VALID [2022-04-14 22:48:19,837 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {318#true} {318#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {318#true} is VALID [2022-04-14 22:48:19,838 INFO L272 TraceCheckUtils]: 4: Hoare triple {318#true} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {318#true} is VALID [2022-04-14 22:48:19,838 INFO L290 TraceCheckUtils]: 5: Hoare triple {318#true} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {318#true} is VALID [2022-04-14 22:48:19,840 INFO L272 TraceCheckUtils]: 6: Hoare triple {318#true} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {318#true} is VALID [2022-04-14 22:48:19,840 INFO L290 TraceCheckUtils]: 7: Hoare triple {318#true} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {318#true} is VALID [2022-04-14 22:48:19,841 INFO L290 TraceCheckUtils]: 8: Hoare triple {318#true} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {318#true} is VALID [2022-04-14 22:48:19,841 INFO L290 TraceCheckUtils]: 9: Hoare triple {318#true} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {318#true} is VALID [2022-04-14 22:48:19,841 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {318#true} {318#true} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {318#true} is VALID [2022-04-14 22:48:19,842 INFO L290 TraceCheckUtils]: 11: Hoare triple {318#true} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {356#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:48:19,842 INFO L290 TraceCheckUtils]: 12: Hoare triple {356#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {356#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:48:19,844 INFO L290 TraceCheckUtils]: 13: Hoare triple {356#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {356#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:48:19,845 INFO L272 TraceCheckUtils]: 14: Hoare triple {356#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {366#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:48:19,846 INFO L290 TraceCheckUtils]: 15: Hoare triple {366#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {370#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:48:19,846 INFO L290 TraceCheckUtils]: 16: Hoare triple {370#(<= 1 __VERIFIER_assert_~cond)} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {319#false} is VALID [2022-04-14 22:48:19,847 INFO L290 TraceCheckUtils]: 17: Hoare triple {319#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#false} is VALID [2022-04-14 22:48:19,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:48:19,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-14 22:48:19,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:48:19,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225866873] [2022-04-14 22:48:19,850 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:48:19,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745769587] [2022-04-14 22:48:19,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745769587] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 22:48:19,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 22:48:19,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-14 22:48:19,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317312975] [2022-04-14 22:48:19,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:48:19,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-04-14 22:48:19,851 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:48:19,851 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:48:19,863 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:48:19,863 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-14 22:48:19,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:48:19,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-14 22:48:19,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-14 22:48:19,864 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:48:19,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:19,967 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-04-14 22:48:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-14 22:48:19,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-04-14 22:48:19,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:48:19,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:48:19,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2022-04-14 22:48:19,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:48:19,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2022-04-14 22:48:19,974 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 42 transitions. [2022-04-14 22:48:20,005 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:48:20,007 INFO L225 Difference]: With dead ends: 36 [2022-04-14 22:48:20,007 INFO L226 Difference]: Without dead ends: 36 [2022-04-14 22:48:20,007 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-14 22:48:20,009 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 8 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:48:20,010 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 78 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:48:20,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-04-14 22:48:20,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2022-04-14 22:48:20,016 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:48:20,016 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand has 32 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:20,017 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand has 32 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:20,017 INFO L87 Difference]: Start difference. First operand 36 states. Second operand has 32 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:20,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:20,021 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-04-14 22:48:20,021 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-04-14 22:48:20,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:48:20,022 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:48:20,023 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Second operand 36 states. [2022-04-14 22:48:20,023 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Second operand 36 states. [2022-04-14 22:48:20,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:20,029 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-04-14 22:48:20,029 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-04-14 22:48:20,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:48:20,032 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:48:20,032 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:48:20,032 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:48:20,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:20,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-04-14 22:48:20,034 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 18 [2022-04-14 22:48:20,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:48:20,034 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-04-14 22:48:20,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:48:20,034 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-14 22:48:20,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-14 22:48:20,034 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:48:20,035 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:48:20,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-14 22:48:20,246 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-14 22:48:20,247 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:48:20,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:48:20,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1698322804, now seen corresponding path program 1 times [2022-04-14 22:48:20,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:48:20,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922928209] [2022-04-14 22:48:20,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:48:20,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:48:20,262 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:48:20,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697651349] [2022-04-14 22:48:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:48:20,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:48:20,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:48:20,263 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) [2022-04-14 22:48:20,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-14 22:48:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:20,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-14 22:48:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:20,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:48:20,373 INFO L272 TraceCheckUtils]: 0: Hoare triple {518#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {518#true} is VALID [2022-04-14 22:48:20,373 INFO L290 TraceCheckUtils]: 1: Hoare triple {518#true} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {518#true} is VALID [2022-04-14 22:48:20,373 INFO L290 TraceCheckUtils]: 2: Hoare triple {518#true} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {518#true} is VALID [2022-04-14 22:48:20,373 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {518#true} {518#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {518#true} is VALID [2022-04-14 22:48:20,373 INFO L272 TraceCheckUtils]: 4: Hoare triple {518#true} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {518#true} is VALID [2022-04-14 22:48:20,374 INFO L290 TraceCheckUtils]: 5: Hoare triple {518#true} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {518#true} is VALID [2022-04-14 22:48:20,374 INFO L272 TraceCheckUtils]: 6: Hoare triple {518#true} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {518#true} is VALID [2022-04-14 22:48:20,374 INFO L290 TraceCheckUtils]: 7: Hoare triple {518#true} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {544#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-14 22:48:20,375 INFO L290 TraceCheckUtils]: 8: Hoare triple {544#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {548#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 22:48:20,375 INFO L290 TraceCheckUtils]: 9: Hoare triple {548#(not (= |assume_abort_if_not_#in~cond| 0))} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {548#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 22:48:20,375 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {548#(not (= |assume_abort_if_not_#in~cond| 0))} {518#true} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {555#(<= 1 main_~b~0)} is VALID [2022-04-14 22:48:20,376 INFO L290 TraceCheckUtils]: 11: Hoare triple {555#(<= 1 main_~b~0)} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {559#(<= 1 main_~y~0)} is VALID [2022-04-14 22:48:20,376 INFO L290 TraceCheckUtils]: 12: Hoare triple {559#(<= 1 main_~y~0)} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {559#(<= 1 main_~y~0)} is VALID [2022-04-14 22:48:20,377 INFO L290 TraceCheckUtils]: 13: Hoare triple {559#(<= 1 main_~y~0)} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {559#(<= 1 main_~y~0)} is VALID [2022-04-14 22:48:20,377 INFO L272 TraceCheckUtils]: 14: Hoare triple {559#(<= 1 main_~y~0)} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {518#true} is VALID [2022-04-14 22:48:20,377 INFO L290 TraceCheckUtils]: 15: Hoare triple {518#true} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {518#true} is VALID [2022-04-14 22:48:20,377 INFO L290 TraceCheckUtils]: 16: Hoare triple {518#true} [90] L13-->L13-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {518#true} is VALID [2022-04-14 22:48:20,377 INFO L290 TraceCheckUtils]: 17: Hoare triple {518#true} [95] L13-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {518#true} is VALID [2022-04-14 22:48:20,382 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {518#true} {559#(<= 1 main_~y~0)} [102] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {559#(<= 1 main_~y~0)} is VALID [2022-04-14 22:48:20,386 INFO L290 TraceCheckUtils]: 19: Hoare triple {559#(<= 1 main_~y~0)} [91] L34-1-->L33-4: Formula: (= v_main_~y~0_7 0) InVars {main_~y~0=v_main_~y~0_7} OutVars{main_~y~0=v_main_~y~0_7} AuxVars[] AssignedVars[] {519#false} is VALID [2022-04-14 22:48:20,386 INFO L272 TraceCheckUtils]: 20: Hoare triple {519#false} [81] L33-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~z~0_8 (* v_main_~a~0_8 v_main_~b~0_10)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~b~0=v_main_~b~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~z~0, main_~b~0, main_~a~0] {519#false} is VALID [2022-04-14 22:48:20,386 INFO L290 TraceCheckUtils]: 21: Hoare triple {519#false} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {519#false} is VALID [2022-04-14 22:48:20,386 INFO L290 TraceCheckUtils]: 22: Hoare triple {519#false} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {519#false} is VALID [2022-04-14 22:48:20,386 INFO L290 TraceCheckUtils]: 23: Hoare triple {519#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {519#false} is VALID [2022-04-14 22:48:20,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:48:20,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-14 22:48:20,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:48:20,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922928209] [2022-04-14 22:48:20,387 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:48:20,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697651349] [2022-04-14 22:48:20,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697651349] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 22:48:20,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 22:48:20,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-14 22:48:20,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168281403] [2022-04-14 22:48:20,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:48:20,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-04-14 22:48:20,388 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:48:20,388 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-14 22:48:20,403 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:48:20,403 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-14 22:48:20,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:48:20,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-14 22:48:20,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-14 22:48:20,404 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-14 22:48:20,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:20,540 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-04-14 22:48:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-14 22:48:20,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-04-14 22:48:20,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:48:20,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-14 22:48:20,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 37 transitions. [2022-04-14 22:48:20,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-14 22:48:20,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 37 transitions. [2022-04-14 22:48:20,542 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 37 transitions. [2022-04-14 22:48:20,571 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:48:20,572 INFO L225 Difference]: With dead ends: 35 [2022-04-14 22:48:20,572 INFO L226 Difference]: Without dead ends: 35 [2022-04-14 22:48:20,572 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-14 22:48:20,573 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:48:20,573 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 88 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:48:20,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-04-14 22:48:20,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2022-04-14 22:48:20,575 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:48:20,575 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:20,575 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:20,576 INFO L87 Difference]: Start difference. First operand 35 states. Second operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:20,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:20,577 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-04-14 22:48:20,577 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-04-14 22:48:20,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:48:20,577 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:48:20,578 INFO L74 IsIncluded]: Start isIncluded. First operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 35 states. [2022-04-14 22:48:20,578 INFO L87 Difference]: Start difference. First operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 35 states. [2022-04-14 22:48:20,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:20,579 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-04-14 22:48:20,579 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-04-14 22:48:20,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:48:20,579 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:48:20,579 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:48:20,579 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:48:20,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:20,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-04-14 22:48:20,580 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 24 [2022-04-14 22:48:20,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:48:20,580 INFO L478 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-04-14 22:48:20,581 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-14 22:48:20,581 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-04-14 22:48:20,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-04-14 22:48:20,581 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:48:20,581 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:48:20,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-14 22:48:20,798 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:48:20,798 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:48:20,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:48:20,798 INFO L85 PathProgramCache]: Analyzing trace with hash 919545147, now seen corresponding path program 1 times [2022-04-14 22:48:20,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:48:20,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552430870] [2022-04-14 22:48:20,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:48:20,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:48:20,810 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:48:20,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547434128] [2022-04-14 22:48:20,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:48:20,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:48:20,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:48:20,811 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) [2022-04-14 22:48:20,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-14 22:48:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:20,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-14 22:48:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:20,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:48:21,000 INFO L272 TraceCheckUtils]: 0: Hoare triple {737#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {737#true} is VALID [2022-04-14 22:48:21,001 INFO L290 TraceCheckUtils]: 1: Hoare triple {737#true} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,002 INFO L290 TraceCheckUtils]: 2: Hoare triple {745#(<= ~counter~0 0)} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,002 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {745#(<= ~counter~0 0)} {737#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,003 INFO L272 TraceCheckUtils]: 4: Hoare triple {745#(<= ~counter~0 0)} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,003 INFO L290 TraceCheckUtils]: 5: Hoare triple {745#(<= ~counter~0 0)} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,004 INFO L272 TraceCheckUtils]: 6: Hoare triple {745#(<= ~counter~0 0)} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,004 INFO L290 TraceCheckUtils]: 7: Hoare triple {745#(<= ~counter~0 0)} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,005 INFO L290 TraceCheckUtils]: 8: Hoare triple {745#(<= ~counter~0 0)} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,005 INFO L290 TraceCheckUtils]: 9: Hoare triple {745#(<= ~counter~0 0)} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,005 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {745#(<= ~counter~0 0)} {745#(<= ~counter~0 0)} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,006 INFO L290 TraceCheckUtils]: 11: Hoare triple {745#(<= ~counter~0 0)} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,006 INFO L290 TraceCheckUtils]: 12: Hoare triple {745#(<= ~counter~0 0)} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,007 INFO L290 TraceCheckUtils]: 13: Hoare triple {779#(<= ~counter~0 1)} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,007 INFO L272 TraceCheckUtils]: 14: Hoare triple {779#(<= ~counter~0 1)} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,008 INFO L290 TraceCheckUtils]: 15: Hoare triple {779#(<= ~counter~0 1)} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,008 INFO L290 TraceCheckUtils]: 16: Hoare triple {779#(<= ~counter~0 1)} [90] L13-->L13-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,008 INFO L290 TraceCheckUtils]: 17: Hoare triple {779#(<= ~counter~0 1)} [95] L13-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,011 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {779#(<= ~counter~0 1)} {779#(<= ~counter~0 1)} [102] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,011 INFO L290 TraceCheckUtils]: 19: Hoare triple {779#(<= ~counter~0 1)} [92] L34-1-->L38: Formula: (not (= v_main_~y~0_8 0)) InVars {main_~y~0=v_main_~y~0_8} OutVars{main_~y~0=v_main_~y~0_8} AuxVars[] AssignedVars[] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,012 INFO L290 TraceCheckUtils]: 20: Hoare triple {779#(<= ~counter~0 1)} [96] L38-->L38-2: Formula: (and (= (let ((.cse0 (mod v_main_~y~0_10 2))) (ite (and (< v_main_~y~0_10 0) (not (= .cse0 0))) (+ (- 2) .cse0) .cse0)) 1) (= v_main_~z~0_5 (+ v_main_~x~0_6 v_main_~z~0_6)) (= v_main_~y~0_9 (+ (- 1) v_main_~y~0_10))) InVars {main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_6} OutVars{main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5} AuxVars[] AssignedVars[main_~z~0, main_~y~0] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,012 INFO L290 TraceCheckUtils]: 21: Hoare triple {779#(<= ~counter~0 1)} [98] L38-2-->L33-3: Formula: (and (= v_main_~x~0_1 (* v_main_~x~0_2 2)) (= v_main_~y~0_2 (let ((.cse0 (div v_main_~y~0_3 2))) (ite (and (< v_main_~y~0_3 0) (not (= (mod v_main_~y~0_3 2) 0))) (+ .cse0 1) .cse0)))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_3} OutVars{main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_2} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,013 INFO L290 TraceCheckUtils]: 22: Hoare triple {779#(<= ~counter~0 1)} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {810#(<= |main_#t~post6| 1)} is VALID [2022-04-14 22:48:21,013 INFO L290 TraceCheckUtils]: 23: Hoare triple {810#(<= |main_#t~post6| 1)} [82] L33-1-->L33-4: Formula: (not (< |v_main_#t~post6_3| 2)) InVars {main_#t~post6=|v_main_#t~post6_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {738#false} is VALID [2022-04-14 22:48:21,013 INFO L272 TraceCheckUtils]: 24: Hoare triple {738#false} [81] L33-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~z~0_8 (* v_main_~a~0_8 v_main_~b~0_10)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~b~0=v_main_~b~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~z~0, main_~b~0, main_~a~0] {738#false} is VALID [2022-04-14 22:48:21,013 INFO L290 TraceCheckUtils]: 25: Hoare triple {738#false} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {738#false} is VALID [2022-04-14 22:48:21,013 INFO L290 TraceCheckUtils]: 26: Hoare triple {738#false} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {738#false} is VALID [2022-04-14 22:48:21,014 INFO L290 TraceCheckUtils]: 27: Hoare triple {738#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {738#false} is VALID [2022-04-14 22:48:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:48:21,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 22:48:21,154 INFO L290 TraceCheckUtils]: 27: Hoare triple {738#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {738#false} is VALID [2022-04-14 22:48:21,154 INFO L290 TraceCheckUtils]: 26: Hoare triple {738#false} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {738#false} is VALID [2022-04-14 22:48:21,154 INFO L290 TraceCheckUtils]: 25: Hoare triple {738#false} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {738#false} is VALID [2022-04-14 22:48:21,154 INFO L272 TraceCheckUtils]: 24: Hoare triple {738#false} [81] L33-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~z~0_8 (* v_main_~a~0_8 v_main_~b~0_10)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~b~0=v_main_~b~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~z~0, main_~b~0, main_~a~0] {738#false} is VALID [2022-04-14 22:48:21,155 INFO L290 TraceCheckUtils]: 23: Hoare triple {810#(<= |main_#t~post6| 1)} [82] L33-1-->L33-4: Formula: (not (< |v_main_#t~post6_3| 2)) InVars {main_#t~post6=|v_main_#t~post6_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {738#false} is VALID [2022-04-14 22:48:21,155 INFO L290 TraceCheckUtils]: 22: Hoare triple {779#(<= ~counter~0 1)} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {810#(<= |main_#t~post6| 1)} is VALID [2022-04-14 22:48:21,156 INFO L290 TraceCheckUtils]: 21: Hoare triple {779#(<= ~counter~0 1)} [98] L38-2-->L33-3: Formula: (and (= v_main_~x~0_1 (* v_main_~x~0_2 2)) (= v_main_~y~0_2 (let ((.cse0 (div v_main_~y~0_3 2))) (ite (and (< v_main_~y~0_3 0) (not (= (mod v_main_~y~0_3 2) 0))) (+ .cse0 1) .cse0)))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_3} OutVars{main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_2} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,156 INFO L290 TraceCheckUtils]: 20: Hoare triple {779#(<= ~counter~0 1)} [96] L38-->L38-2: Formula: (and (= (let ((.cse0 (mod v_main_~y~0_10 2))) (ite (and (< v_main_~y~0_10 0) (not (= .cse0 0))) (+ (- 2) .cse0) .cse0)) 1) (= v_main_~z~0_5 (+ v_main_~x~0_6 v_main_~z~0_6)) (= v_main_~y~0_9 (+ (- 1) v_main_~y~0_10))) InVars {main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_6} OutVars{main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5} AuxVars[] AssignedVars[main_~z~0, main_~y~0] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,156 INFO L290 TraceCheckUtils]: 19: Hoare triple {779#(<= ~counter~0 1)} [92] L34-1-->L38: Formula: (not (= v_main_~y~0_8 0)) InVars {main_~y~0=v_main_~y~0_8} OutVars{main_~y~0=v_main_~y~0_8} AuxVars[] AssignedVars[] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,157 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {737#true} {779#(<= ~counter~0 1)} [102] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,157 INFO L290 TraceCheckUtils]: 17: Hoare triple {737#true} [95] L13-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {737#true} is VALID [2022-04-14 22:48:21,158 INFO L290 TraceCheckUtils]: 16: Hoare triple {737#true} [90] L13-->L13-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {737#true} is VALID [2022-04-14 22:48:21,158 INFO L290 TraceCheckUtils]: 15: Hoare triple {737#true} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {737#true} is VALID [2022-04-14 22:48:21,158 INFO L272 TraceCheckUtils]: 14: Hoare triple {779#(<= ~counter~0 1)} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {737#true} is VALID [2022-04-14 22:48:21,158 INFO L290 TraceCheckUtils]: 13: Hoare triple {779#(<= ~counter~0 1)} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,159 INFO L290 TraceCheckUtils]: 12: Hoare triple {745#(<= ~counter~0 0)} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {779#(<= ~counter~0 1)} is VALID [2022-04-14 22:48:21,159 INFO L290 TraceCheckUtils]: 11: Hoare triple {745#(<= ~counter~0 0)} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,160 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {737#true} {745#(<= ~counter~0 0)} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,160 INFO L290 TraceCheckUtils]: 9: Hoare triple {737#true} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {737#true} is VALID [2022-04-14 22:48:21,160 INFO L290 TraceCheckUtils]: 8: Hoare triple {737#true} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {737#true} is VALID [2022-04-14 22:48:21,160 INFO L290 TraceCheckUtils]: 7: Hoare triple {737#true} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {737#true} is VALID [2022-04-14 22:48:21,160 INFO L272 TraceCheckUtils]: 6: Hoare triple {745#(<= ~counter~0 0)} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {737#true} is VALID [2022-04-14 22:48:21,160 INFO L290 TraceCheckUtils]: 5: Hoare triple {745#(<= ~counter~0 0)} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,161 INFO L272 TraceCheckUtils]: 4: Hoare triple {745#(<= ~counter~0 0)} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,161 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {745#(<= ~counter~0 0)} {737#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,162 INFO L290 TraceCheckUtils]: 2: Hoare triple {745#(<= ~counter~0 0)} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,162 INFO L290 TraceCheckUtils]: 1: Hoare triple {737#true} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {745#(<= ~counter~0 0)} is VALID [2022-04-14 22:48:21,162 INFO L272 TraceCheckUtils]: 0: Hoare triple {737#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {737#true} is VALID [2022-04-14 22:48:21,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:48:21,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:48:21,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552430870] [2022-04-14 22:48:21,163 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:48:21,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547434128] [2022-04-14 22:48:21,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547434128] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-14 22:48:21,163 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-14 22:48:21,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2022-04-14 22:48:21,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928227550] [2022-04-14 22:48:21,163 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-14 22:48:21,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 28 [2022-04-14 22:48:21,164 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:48:21,164 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-14 22:48:21,187 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:48:21,187 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-14 22:48:21,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:48:21,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-14 22:48:21,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-14 22:48:21,188 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-14 22:48:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:21,259 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-04-14 22:48:21,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-14 22:48:21,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 28 [2022-04-14 22:48:21,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:48:21,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-14 22:48:21,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2022-04-14 22:48:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-14 22:48:21,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2022-04-14 22:48:21,262 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 42 transitions. [2022-04-14 22:48:21,285 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:48:21,286 INFO L225 Difference]: With dead ends: 37 [2022-04-14 22:48:21,286 INFO L226 Difference]: Without dead ends: 37 [2022-04-14 22:48:21,286 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-14 22:48:21,287 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:48:21,287 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 75 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:48:21,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-04-14 22:48:21,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-04-14 22:48:21,289 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:48:21,289 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand has 37 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:21,289 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand has 37 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:21,289 INFO L87 Difference]: Start difference. First operand 37 states. Second operand has 37 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:21,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:21,290 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-04-14 22:48:21,291 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-04-14 22:48:21,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:48:21,291 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:48:21,291 INFO L74 IsIncluded]: Start isIncluded. First operand has 37 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 37 states. [2022-04-14 22:48:21,291 INFO L87 Difference]: Start difference. First operand has 37 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 37 states. [2022-04-14 22:48:21,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:48:21,292 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-04-14 22:48:21,292 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-04-14 22:48:21,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:48:21,292 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:48:21,292 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:48:21,292 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:48:21,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:48:21,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-04-14 22:48:21,293 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 28 [2022-04-14 22:48:21,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:48:21,294 INFO L478 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-04-14 22:48:21,294 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-14 22:48:21,294 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-04-14 22:48:21,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-04-14 22:48:21,294 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:48:21,294 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:48:21,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-14 22:48:21,507 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:48:21,507 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:48:21,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:48:21,508 INFO L85 PathProgramCache]: Analyzing trace with hash 920647414, now seen corresponding path program 1 times [2022-04-14 22:48:21,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:48:21,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030173154] [2022-04-14 22:48:21,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:48:21,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:48:21,519 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:48:21,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1765174746] [2022-04-14 22:48:21,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:48:21,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:48:21,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:48:21,520 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) [2022-04-14 22:48:21,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-14 22:48:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:21,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 28 conjunts are in the unsatisfiable core [2022-04-14 22:48:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:48:21,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:48:25,777 INFO L272 TraceCheckUtils]: 0: Hoare triple {1059#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:48:25,778 INFO L290 TraceCheckUtils]: 1: Hoare triple {1059#true} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {1059#true} is VALID [2022-04-14 22:48:25,778 INFO L290 TraceCheckUtils]: 2: Hoare triple {1059#true} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:48:25,778 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1059#true} {1059#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:48:25,778 INFO L272 TraceCheckUtils]: 4: Hoare triple {1059#true} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:48:25,778 INFO L290 TraceCheckUtils]: 5: Hoare triple {1059#true} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1059#true} is VALID [2022-04-14 22:48:25,778 INFO L272 TraceCheckUtils]: 6: Hoare triple {1059#true} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1059#true} is VALID [2022-04-14 22:48:25,778 INFO L290 TraceCheckUtils]: 7: Hoare triple {1059#true} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {1059#true} is VALID [2022-04-14 22:48:25,779 INFO L290 TraceCheckUtils]: 8: Hoare triple {1059#true} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:48:25,779 INFO L290 TraceCheckUtils]: 9: Hoare triple {1059#true} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:48:25,779 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1059#true} {1059#true} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1059#true} is VALID [2022-04-14 22:48:25,792 INFO L290 TraceCheckUtils]: 11: Hoare triple {1059#true} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {1097#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:48:25,792 INFO L290 TraceCheckUtils]: 12: Hoare triple {1097#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1097#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:48:25,793 INFO L290 TraceCheckUtils]: 13: Hoare triple {1097#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1097#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:48:25,793 INFO L272 TraceCheckUtils]: 14: Hoare triple {1097#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1059#true} is VALID [2022-04-14 22:48:25,793 INFO L290 TraceCheckUtils]: 15: Hoare triple {1059#true} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1110#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:48:25,793 INFO L290 TraceCheckUtils]: 16: Hoare triple {1110#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} [90] L13-->L13-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {1114#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:48:25,794 INFO L290 TraceCheckUtils]: 17: Hoare triple {1114#(not (= |__VERIFIER_assert_#in~cond| 0))} [95] L13-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1114#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:48:25,794 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1114#(not (= |__VERIFIER_assert_#in~cond| 0))} {1097#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} [102] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1097#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:48:25,795 INFO L290 TraceCheckUtils]: 19: Hoare triple {1097#(and (= main_~z~0 0) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} [92] L34-1-->L38: Formula: (not (= v_main_~y~0_8 0)) InVars {main_~y~0=v_main_~y~0_8} OutVars{main_~y~0=v_main_~y~0_8} AuxVars[] AssignedVars[] {1124#(and (= main_~z~0 0) (not (= main_~y~0 0)) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:48:25,796 INFO L290 TraceCheckUtils]: 20: Hoare triple {1124#(and (= main_~z~0 0) (not (= main_~y~0 0)) (= main_~b~0 main_~y~0) (= main_~a~0 main_~x~0))} [96] L38-->L38-2: Formula: (and (= (let ((.cse0 (mod v_main_~y~0_10 2))) (ite (and (< v_main_~y~0_10 0) (not (= .cse0 0))) (+ (- 2) .cse0) .cse0)) 1) (= v_main_~z~0_5 (+ v_main_~x~0_6 v_main_~z~0_6)) (= v_main_~y~0_9 (+ (- 1) v_main_~y~0_10))) InVars {main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_6} OutVars{main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5} AuxVars[] AssignedVars[main_~z~0, main_~y~0] {1128#(and (= main_~b~0 (+ main_~y~0 1)) (<= 1 (mod main_~b~0 2)) (= main_~z~0 main_~x~0) (<= 0 main_~b~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:48:25,797 INFO L290 TraceCheckUtils]: 21: Hoare triple {1128#(and (= main_~b~0 (+ main_~y~0 1)) (<= 1 (mod main_~b~0 2)) (= main_~z~0 main_~x~0) (<= 0 main_~b~0) (= main_~a~0 main_~x~0))} [98] L38-2-->L33-3: Formula: (and (= v_main_~x~0_1 (* v_main_~x~0_2 2)) (= v_main_~y~0_2 (let ((.cse0 (div v_main_~y~0_3 2))) (ite (and (< v_main_~y~0_3 0) (not (= (mod v_main_~y~0_3 2) 0))) (+ .cse0 1) .cse0)))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_3} OutVars{main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_2} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {1132#(and (= main_~a~0 main_~z~0) (<= 1 (mod main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (<= 0 main_~b~0) (= (div (+ (- 1) main_~b~0) 2) main_~y~0))} is VALID [2022-04-14 22:48:25,797 INFO L290 TraceCheckUtils]: 22: Hoare triple {1132#(and (= main_~a~0 main_~z~0) (<= 1 (mod main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (<= 0 main_~b~0) (= (div (+ (- 1) main_~b~0) 2) main_~y~0))} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1132#(and (= main_~a~0 main_~z~0) (<= 1 (mod main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (<= 0 main_~b~0) (= (div (+ (- 1) main_~b~0) 2) main_~y~0))} is VALID [2022-04-14 22:48:25,798 INFO L290 TraceCheckUtils]: 23: Hoare triple {1132#(and (= main_~a~0 main_~z~0) (<= 1 (mod main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (<= 0 main_~b~0) (= (div (+ (- 1) main_~b~0) 2) main_~y~0))} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1132#(and (= main_~a~0 main_~z~0) (<= 1 (mod main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (<= 0 main_~b~0) (= (div (+ (- 1) main_~b~0) 2) main_~y~0))} is VALID [2022-04-14 22:48:26,300 INFO L272 TraceCheckUtils]: 24: Hoare triple {1132#(and (= main_~a~0 main_~z~0) (<= 1 (mod main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (<= 0 main_~b~0) (= (div (+ (- 1) main_~b~0) 2) main_~y~0))} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1142#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:48:26,300 INFO L290 TraceCheckUtils]: 25: Hoare triple {1142#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1146#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:48:26,302 INFO L290 TraceCheckUtils]: 26: Hoare triple {1146#(<= 1 __VERIFIER_assert_~cond)} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1060#false} is VALID [2022-04-14 22:48:26,302 INFO L290 TraceCheckUtils]: 27: Hoare triple {1060#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1060#false} is VALID [2022-04-14 22:48:26,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:48:26,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 22:49:28,585 INFO L290 TraceCheckUtils]: 27: Hoare triple {1060#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1060#false} is VALID [2022-04-14 22:49:28,585 INFO L290 TraceCheckUtils]: 26: Hoare triple {1146#(<= 1 __VERIFIER_assert_~cond)} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1060#false} is VALID [2022-04-14 22:49:28,586 INFO L290 TraceCheckUtils]: 25: Hoare triple {1142#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1146#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:49:28,596 INFO L272 TraceCheckUtils]: 24: Hoare triple {1162#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1142#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:49:28,597 INFO L290 TraceCheckUtils]: 23: Hoare triple {1162#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1162#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} is VALID [2022-04-14 22:49:28,597 INFO L290 TraceCheckUtils]: 22: Hoare triple {1162#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1162#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} is VALID [2022-04-14 22:49:28,602 INFO L290 TraceCheckUtils]: 21: Hoare triple {1172#(and (or (not (< main_~y~0 0)) (= (mod main_~y~0 2) 0) (= (+ main_~z~0 (* (* main_~x~0 2) (+ (div main_~y~0 2) 1))) (* main_~b~0 main_~a~0))) (or (= (+ main_~z~0 (* (* main_~x~0 2) (div main_~y~0 2))) (* main_~b~0 main_~a~0)) (and (not (= (mod main_~y~0 2) 0)) (< main_~y~0 0))))} [98] L38-2-->L33-3: Formula: (and (= v_main_~x~0_1 (* v_main_~x~0_2 2)) (= v_main_~y~0_2 (let ((.cse0 (div v_main_~y~0_3 2))) (ite (and (< v_main_~y~0_3 0) (not (= (mod v_main_~y~0_3 2) 0))) (+ .cse0 1) .cse0)))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_3} OutVars{main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_2} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {1162#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} is VALID [2022-04-14 22:49:28,604 INFO L290 TraceCheckUtils]: 20: Hoare triple {1176#(or (= (+ (* (* main_~x~0 2) (div (+ (- 1) main_~y~0) 2)) main_~z~0 main_~x~0) (* main_~b~0 main_~a~0)) (not (<= 1 (mod main_~y~0 2))) (< main_~y~0 0))} [96] L38-->L38-2: Formula: (and (= (let ((.cse0 (mod v_main_~y~0_10 2))) (ite (and (< v_main_~y~0_10 0) (not (= .cse0 0))) (+ (- 2) .cse0) .cse0)) 1) (= v_main_~z~0_5 (+ v_main_~x~0_6 v_main_~z~0_6)) (= v_main_~y~0_9 (+ (- 1) v_main_~y~0_10))) InVars {main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_6} OutVars{main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5} AuxVars[] AssignedVars[main_~z~0, main_~y~0] {1172#(and (or (not (< main_~y~0 0)) (= (mod main_~y~0 2) 0) (= (+ main_~z~0 (* (* main_~x~0 2) (+ (div main_~y~0 2) 1))) (* main_~b~0 main_~a~0))) (or (= (+ main_~z~0 (* (* main_~x~0 2) (div main_~y~0 2))) (* main_~b~0 main_~a~0)) (and (not (= (mod main_~y~0 2) 0)) (< main_~y~0 0))))} is VALID [2022-04-14 22:49:28,604 INFO L290 TraceCheckUtils]: 19: Hoare triple {1176#(or (= (+ (* (* main_~x~0 2) (div (+ (- 1) main_~y~0) 2)) main_~z~0 main_~x~0) (* main_~b~0 main_~a~0)) (not (<= 1 (mod main_~y~0 2))) (< main_~y~0 0))} [92] L34-1-->L38: Formula: (not (= v_main_~y~0_8 0)) InVars {main_~y~0=v_main_~y~0_8} OutVars{main_~y~0=v_main_~y~0_8} AuxVars[] AssignedVars[] {1176#(or (= (+ (* (* main_~x~0 2) (div (+ (- 1) main_~y~0) 2)) main_~z~0 main_~x~0) (* main_~b~0 main_~a~0)) (not (<= 1 (mod main_~y~0 2))) (< main_~y~0 0))} is VALID [2022-04-14 22:49:29,016 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1114#(not (= |__VERIFIER_assert_#in~cond| 0))} {1059#true} [102] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1176#(or (= (+ (* (* main_~x~0 2) (div (+ (- 1) main_~y~0) 2)) main_~z~0 main_~x~0) (* main_~b~0 main_~a~0)) (not (<= 1 (mod main_~y~0 2))) (< main_~y~0 0))} is VALID [2022-04-14 22:49:29,017 INFO L290 TraceCheckUtils]: 17: Hoare triple {1114#(not (= |__VERIFIER_assert_#in~cond| 0))} [95] L13-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1114#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:49:29,017 INFO L290 TraceCheckUtils]: 16: Hoare triple {1192#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} [90] L13-->L13-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {1114#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:49:29,018 INFO L290 TraceCheckUtils]: 15: Hoare triple {1059#true} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1192#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-14 22:49:29,018 INFO L272 TraceCheckUtils]: 14: Hoare triple {1059#true} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1059#true} is VALID [2022-04-14 22:49:29,018 INFO L290 TraceCheckUtils]: 13: Hoare triple {1059#true} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1059#true} is VALID [2022-04-14 22:49:29,018 INFO L290 TraceCheckUtils]: 12: Hoare triple {1059#true} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1059#true} is VALID [2022-04-14 22:49:29,018 INFO L290 TraceCheckUtils]: 11: Hoare triple {1059#true} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {1059#true} is VALID [2022-04-14 22:49:29,018 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1059#true} {1059#true} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1059#true} is VALID [2022-04-14 22:49:29,018 INFO L290 TraceCheckUtils]: 9: Hoare triple {1059#true} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:49:29,018 INFO L290 TraceCheckUtils]: 8: Hoare triple {1059#true} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:49:29,018 INFO L290 TraceCheckUtils]: 7: Hoare triple {1059#true} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {1059#true} is VALID [2022-04-14 22:49:29,019 INFO L272 TraceCheckUtils]: 6: Hoare triple {1059#true} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1059#true} is VALID [2022-04-14 22:49:29,019 INFO L290 TraceCheckUtils]: 5: Hoare triple {1059#true} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1059#true} is VALID [2022-04-14 22:49:29,019 INFO L272 TraceCheckUtils]: 4: Hoare triple {1059#true} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:49:29,019 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1059#true} {1059#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:49:29,019 INFO L290 TraceCheckUtils]: 2: Hoare triple {1059#true} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:49:29,019 INFO L290 TraceCheckUtils]: 1: Hoare triple {1059#true} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {1059#true} is VALID [2022-04-14 22:49:29,019 INFO L272 TraceCheckUtils]: 0: Hoare triple {1059#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1059#true} is VALID [2022-04-14 22:49:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:49:29,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:49:29,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030173154] [2022-04-14 22:49:29,020 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:49:29,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765174746] [2022-04-14 22:49:29,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765174746] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-14 22:49:29,020 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-14 22:49:29,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2022-04-14 22:49:29,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573097949] [2022-04-14 22:49:29,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-14 22:49:29,020 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2022-04-14 22:49:29,021 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:49:29,021 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-14 22:49:29,631 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:49:29,631 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-14 22:49:29,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:49:29,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-14 22:49:29,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=142, Unknown=1, NotChecked=0, Total=182 [2022-04-14 22:49:29,632 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-14 22:49:39,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-14 22:49:41,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-14 22:49:41,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:49:41,444 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2022-04-14 22:49:41,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-14 22:49:41,444 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2022-04-14 22:49:41,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:49:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-14 22:49:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 53 transitions. [2022-04-14 22:49:41,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-14 22:49:41,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 53 transitions. [2022-04-14 22:49:41,447 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 12 states and 53 transitions. [2022-04-14 22:49:41,492 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:49:41,493 INFO L225 Difference]: With dead ends: 51 [2022-04-14 22:49:41,493 INFO L226 Difference]: Without dead ends: 51 [2022-04-14 22:49:41,493 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=63, Invalid=242, Unknown=1, NotChecked=0, Total=306 [2022-04-14 22:49:41,493 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 25 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-14 22:49:41,494 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 183 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 164 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-04-14 22:49:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-04-14 22:49:41,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2022-04-14 22:49:41,497 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:49:41,497 INFO L82 GeneralOperation]: Start isEquivalent. First operand 51 states. Second operand has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 37 states have internal predecessors, (41), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:49:41,497 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 37 states have internal predecessors, (41), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:49:41,497 INFO L87 Difference]: Start difference. First operand 51 states. Second operand has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 37 states have internal predecessors, (41), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:49:41,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:49:41,499 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2022-04-14 22:49:41,499 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-04-14 22:49:41,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:49:41,499 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:49:41,499 INFO L74 IsIncluded]: Start isIncluded. First operand has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 37 states have internal predecessors, (41), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 51 states. [2022-04-14 22:49:41,499 INFO L87 Difference]: Start difference. First operand has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 37 states have internal predecessors, (41), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 51 states. [2022-04-14 22:49:41,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:49:41,501 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2022-04-14 22:49:41,501 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-04-14 22:49:41,501 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:49:41,501 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:49:41,501 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:49:41,501 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:49:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 37 states have internal predecessors, (41), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:49:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-04-14 22:49:41,502 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 28 [2022-04-14 22:49:41,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:49:41,502 INFO L478 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-04-14 22:49:41,503 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-14 22:49:41,503 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-04-14 22:49:41,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-04-14 22:49:41,503 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:49:41,503 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:49:41,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-14 22:49:41,703 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:49:41,704 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:49:41,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:49:41,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1631509547, now seen corresponding path program 1 times [2022-04-14 22:49:41,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:49:41,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154699648] [2022-04-14 22:49:41,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:49:41,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:49:41,714 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:49:41,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966803160] [2022-04-14 22:49:41,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:49:41,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:49:41,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:49:41,715 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) [2022-04-14 22:49:41,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-14 22:49:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:49:41,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 26 conjunts are in the unsatisfiable core [2022-04-14 22:49:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:49:41,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:49:43,033 INFO L272 TraceCheckUtils]: 0: Hoare triple {1450#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1450#true} is VALID [2022-04-14 22:49:43,033 INFO L290 TraceCheckUtils]: 1: Hoare triple {1450#true} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {1450#true} is VALID [2022-04-14 22:49:43,033 INFO L290 TraceCheckUtils]: 2: Hoare triple {1450#true} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1450#true} is VALID [2022-04-14 22:49:43,033 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1450#true} {1450#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1450#true} is VALID [2022-04-14 22:49:43,033 INFO L272 TraceCheckUtils]: 4: Hoare triple {1450#true} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1450#true} is VALID [2022-04-14 22:49:43,033 INFO L290 TraceCheckUtils]: 5: Hoare triple {1450#true} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1450#true} is VALID [2022-04-14 22:49:43,034 INFO L272 TraceCheckUtils]: 6: Hoare triple {1450#true} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1450#true} is VALID [2022-04-14 22:49:43,034 INFO L290 TraceCheckUtils]: 7: Hoare triple {1450#true} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {1476#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-14 22:49:43,037 INFO L290 TraceCheckUtils]: 8: Hoare triple {1476#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {1480#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 22:49:43,037 INFO L290 TraceCheckUtils]: 9: Hoare triple {1480#(not (= |assume_abort_if_not_#in~cond| 0))} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1480#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 22:49:43,038 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1480#(not (= |assume_abort_if_not_#in~cond| 0))} {1450#true} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1487#(<= 1 main_~b~0)} is VALID [2022-04-14 22:49:43,038 INFO L290 TraceCheckUtils]: 11: Hoare triple {1487#(<= 1 main_~b~0)} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {1491#(and (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:49:43,039 INFO L290 TraceCheckUtils]: 12: Hoare triple {1491#(and (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1491#(and (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:49:43,039 INFO L290 TraceCheckUtils]: 13: Hoare triple {1491#(and (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1491#(and (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:49:43,039 INFO L272 TraceCheckUtils]: 14: Hoare triple {1491#(and (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1450#true} is VALID [2022-04-14 22:49:43,039 INFO L290 TraceCheckUtils]: 15: Hoare triple {1450#true} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1504#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:49:43,040 INFO L290 TraceCheckUtils]: 16: Hoare triple {1504#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} [90] L13-->L13-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {1508#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:49:43,040 INFO L290 TraceCheckUtils]: 17: Hoare triple {1508#(not (= |__VERIFIER_assert_#in~cond| 0))} [95] L13-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1508#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:49:43,041 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1508#(not (= |__VERIFIER_assert_#in~cond| 0))} {1491#(and (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} [102] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1515#(and (= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:49:43,041 INFO L290 TraceCheckUtils]: 19: Hoare triple {1515#(and (= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} [92] L34-1-->L38: Formula: (not (= v_main_~y~0_8 0)) InVars {main_~y~0=v_main_~y~0_8} OutVars{main_~y~0=v_main_~y~0_8} AuxVars[] AssignedVars[] {1515#(and (= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:49:43,042 INFO L290 TraceCheckUtils]: 20: Hoare triple {1515#(and (= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} [97] L38-->L38-2: Formula: (not (= (let ((.cse0 (mod v_main_~y~0_1 2))) (ite (and (not (= .cse0 0)) (< v_main_~y~0_1 0)) (+ .cse0 (- 2)) .cse0)) 1)) InVars {main_~y~0=v_main_~y~0_1} OutVars{main_~y~0=v_main_~y~0_1} AuxVars[] AssignedVars[] {1522#(and (= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (not (= (mod main_~y~0 2) 1)) (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} is VALID [2022-04-14 22:49:43,043 INFO L290 TraceCheckUtils]: 21: Hoare triple {1522#(and (= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (not (= (mod main_~y~0 2) 1)) (= main_~b~0 main_~y~0) (<= 1 main_~b~0) (= main_~a~0 main_~x~0))} [98] L38-2-->L33-3: Formula: (and (= v_main_~x~0_1 (* v_main_~x~0_2 2)) (= v_main_~y~0_2 (let ((.cse0 (div v_main_~y~0_3 2))) (ite (and (< v_main_~y~0_3 0) (not (= (mod v_main_~y~0_3 2) 0))) (+ .cse0 1) .cse0)))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_3} OutVars{main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_2} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {1526#(and (= main_~y~0 (div main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (not (= (mod main_~b~0 2) 1)) (<= 1 main_~b~0) (= (+ main_~z~0 (* main_~b~0 main_~a~0)) (* main_~b~0 main_~a~0)))} is VALID [2022-04-14 22:49:43,043 INFO L290 TraceCheckUtils]: 22: Hoare triple {1526#(and (= main_~y~0 (div main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (not (= (mod main_~b~0 2) 1)) (<= 1 main_~b~0) (= (+ main_~z~0 (* main_~b~0 main_~a~0)) (* main_~b~0 main_~a~0)))} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1526#(and (= main_~y~0 (div main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (not (= (mod main_~b~0 2) 1)) (<= 1 main_~b~0) (= (+ main_~z~0 (* main_~b~0 main_~a~0)) (* main_~b~0 main_~a~0)))} is VALID [2022-04-14 22:49:43,044 INFO L290 TraceCheckUtils]: 23: Hoare triple {1526#(and (= main_~y~0 (div main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (not (= (mod main_~b~0 2) 1)) (<= 1 main_~b~0) (= (+ main_~z~0 (* main_~b~0 main_~a~0)) (* main_~b~0 main_~a~0)))} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1526#(and (= main_~y~0 (div main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (not (= (mod main_~b~0 2) 1)) (<= 1 main_~b~0) (= (+ main_~z~0 (* main_~b~0 main_~a~0)) (* main_~b~0 main_~a~0)))} is VALID [2022-04-14 22:49:43,045 INFO L272 TraceCheckUtils]: 24: Hoare triple {1526#(and (= main_~y~0 (div main_~b~0 2)) (= (* main_~a~0 2) main_~x~0) (not (= (mod main_~b~0 2) 1)) (<= 1 main_~b~0) (= (+ main_~z~0 (* main_~b~0 main_~a~0)) (* main_~b~0 main_~a~0)))} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1536#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:49:43,046 INFO L290 TraceCheckUtils]: 25: Hoare triple {1536#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1540#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:49:43,046 INFO L290 TraceCheckUtils]: 26: Hoare triple {1540#(<= 1 __VERIFIER_assert_~cond)} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1451#false} is VALID [2022-04-14 22:49:43,046 INFO L290 TraceCheckUtils]: 27: Hoare triple {1451#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1451#false} is VALID [2022-04-14 22:49:43,046 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:49:43,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 22:50:10,464 INFO L290 TraceCheckUtils]: 27: Hoare triple {1451#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1451#false} is VALID [2022-04-14 22:50:10,465 INFO L290 TraceCheckUtils]: 26: Hoare triple {1540#(<= 1 __VERIFIER_assert_~cond)} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1451#false} is VALID [2022-04-14 22:50:10,465 INFO L290 TraceCheckUtils]: 25: Hoare triple {1536#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1540#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:50:10,466 INFO L272 TraceCheckUtils]: 24: Hoare triple {1556#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1536#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:50:10,467 INFO L290 TraceCheckUtils]: 23: Hoare triple {1556#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1556#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} is VALID [2022-04-14 22:50:10,467 INFO L290 TraceCheckUtils]: 22: Hoare triple {1556#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1556#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} is VALID [2022-04-14 22:50:10,472 INFO L290 TraceCheckUtils]: 21: Hoare triple {1566#(and (or (not (< main_~y~0 0)) (= (mod main_~y~0 2) 0) (= (+ main_~z~0 (* (* main_~x~0 2) (+ (div main_~y~0 2) 1))) (* main_~b~0 main_~a~0))) (or (= (+ main_~z~0 (* (* main_~x~0 2) (div main_~y~0 2))) (* main_~b~0 main_~a~0)) (and (not (= (mod main_~y~0 2) 0)) (< main_~y~0 0))))} [98] L38-2-->L33-3: Formula: (and (= v_main_~x~0_1 (* v_main_~x~0_2 2)) (= v_main_~y~0_2 (let ((.cse0 (div v_main_~y~0_3 2))) (ite (and (< v_main_~y~0_3 0) (not (= (mod v_main_~y~0_3 2) 0))) (+ .cse0 1) .cse0)))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_3} OutVars{main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_2} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {1556#(= (+ main_~z~0 (* main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0))} is VALID [2022-04-14 22:50:10,473 INFO L290 TraceCheckUtils]: 20: Hoare triple {1570#(or (and (<= 0 main_~y~0) (= (mod main_~y~0 2) 1)) (and (or (= (mod main_~y~0 2) 0) (= (+ main_~z~0 (* (* main_~x~0 2) (+ (div main_~y~0 2) 1))) (* main_~b~0 main_~a~0))) (or (= (+ main_~z~0 (* (* main_~x~0 2) (div main_~y~0 2))) (* main_~b~0 main_~a~0)) (not (= (mod main_~y~0 2) 0)))))} [97] L38-->L38-2: Formula: (not (= (let ((.cse0 (mod v_main_~y~0_1 2))) (ite (and (not (= .cse0 0)) (< v_main_~y~0_1 0)) (+ .cse0 (- 2)) .cse0)) 1)) InVars {main_~y~0=v_main_~y~0_1} OutVars{main_~y~0=v_main_~y~0_1} AuxVars[] AssignedVars[] {1566#(and (or (not (< main_~y~0 0)) (= (mod main_~y~0 2) 0) (= (+ main_~z~0 (* (* main_~x~0 2) (+ (div main_~y~0 2) 1))) (* main_~b~0 main_~a~0))) (or (= (+ main_~z~0 (* (* main_~x~0 2) (div main_~y~0 2))) (* main_~b~0 main_~a~0)) (and (not (= (mod main_~y~0 2) 0)) (< main_~y~0 0))))} is VALID [2022-04-14 22:50:10,474 INFO L290 TraceCheckUtils]: 19: Hoare triple {1570#(or (and (<= 0 main_~y~0) (= (mod main_~y~0 2) 1)) (and (or (= (mod main_~y~0 2) 0) (= (+ main_~z~0 (* (* main_~x~0 2) (+ (div main_~y~0 2) 1))) (* main_~b~0 main_~a~0))) (or (= (+ main_~z~0 (* (* main_~x~0 2) (div main_~y~0 2))) (* main_~b~0 main_~a~0)) (not (= (mod main_~y~0 2) 0)))))} [92] L34-1-->L38: Formula: (not (= v_main_~y~0_8 0)) InVars {main_~y~0=v_main_~y~0_8} OutVars{main_~y~0=v_main_~y~0_8} AuxVars[] AssignedVars[] {1570#(or (and (<= 0 main_~y~0) (= (mod main_~y~0 2) 1)) (and (or (= (mod main_~y~0 2) 0) (= (+ main_~z~0 (* (* main_~x~0 2) (+ (div main_~y~0 2) 1))) (* main_~b~0 main_~a~0))) (or (= (+ main_~z~0 (* (* main_~x~0 2) (div main_~y~0 2))) (* main_~b~0 main_~a~0)) (not (= (mod main_~y~0 2) 0)))))} is VALID [2022-04-14 22:50:10,478 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1508#(not (= |__VERIFIER_assert_#in~cond| 0))} {1577#(or (<= 0 main_~y~0) (= (+ (* (* main_~x~0 2) (+ (div main_~y~0 2) 1)) (* main_~b~0 main_~a~0) (* (- 1) main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (= (mod main_~y~0 2) 0))} [102] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1570#(or (and (<= 0 main_~y~0) (= (mod main_~y~0 2) 1)) (and (or (= (mod main_~y~0 2) 0) (= (+ main_~z~0 (* (* main_~x~0 2) (+ (div main_~y~0 2) 1))) (* main_~b~0 main_~a~0))) (or (= (+ main_~z~0 (* (* main_~x~0 2) (div main_~y~0 2))) (* main_~b~0 main_~a~0)) (not (= (mod main_~y~0 2) 0)))))} is VALID [2022-04-14 22:50:10,478 INFO L290 TraceCheckUtils]: 17: Hoare triple {1508#(not (= |__VERIFIER_assert_#in~cond| 0))} [95] L13-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1508#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:50:10,479 INFO L290 TraceCheckUtils]: 16: Hoare triple {1587#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} [90] L13-->L13-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {1508#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:50:10,479 INFO L290 TraceCheckUtils]: 15: Hoare triple {1450#true} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1587#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-14 22:50:10,479 INFO L272 TraceCheckUtils]: 14: Hoare triple {1577#(or (<= 0 main_~y~0) (= (+ (* (* main_~x~0 2) (+ (div main_~y~0 2) 1)) (* main_~b~0 main_~a~0) (* (- 1) main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (= (mod main_~y~0 2) 0))} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1450#true} is VALID [2022-04-14 22:50:10,480 INFO L290 TraceCheckUtils]: 13: Hoare triple {1577#(or (<= 0 main_~y~0) (= (+ (* (* main_~x~0 2) (+ (div main_~y~0 2) 1)) (* main_~b~0 main_~a~0) (* (- 1) main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (= (mod main_~y~0 2) 0))} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1577#(or (<= 0 main_~y~0) (= (+ (* (* main_~x~0 2) (+ (div main_~y~0 2) 1)) (* main_~b~0 main_~a~0) (* (- 1) main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (= (mod main_~y~0 2) 0))} is VALID [2022-04-14 22:50:10,480 INFO L290 TraceCheckUtils]: 12: Hoare triple {1577#(or (<= 0 main_~y~0) (= (+ (* (* main_~x~0 2) (+ (div main_~y~0 2) 1)) (* main_~b~0 main_~a~0) (* (- 1) main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (= (mod main_~y~0 2) 0))} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1577#(or (<= 0 main_~y~0) (= (+ (* (* main_~x~0 2) (+ (div main_~y~0 2) 1)) (* main_~b~0 main_~a~0) (* (- 1) main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (= (mod main_~y~0 2) 0))} is VALID [2022-04-14 22:50:10,481 INFO L290 TraceCheckUtils]: 11: Hoare triple {1600#(or (= (+ (* (- 1) main_~b~0 main_~a~0) (* main_~b~0 main_~a~0) (* (* main_~a~0 2) (+ (div main_~b~0 2) 1))) (* main_~b~0 main_~a~0)) (= (mod main_~b~0 2) 0) (<= 0 main_~b~0))} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {1577#(or (<= 0 main_~y~0) (= (+ (* (* main_~x~0 2) (+ (div main_~y~0 2) 1)) (* main_~b~0 main_~a~0) (* (- 1) main_~y~0 main_~x~0)) (* main_~b~0 main_~a~0)) (= (mod main_~y~0 2) 0))} is VALID [2022-04-14 22:50:10,481 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1480#(not (= |assume_abort_if_not_#in~cond| 0))} {1450#true} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1600#(or (= (+ (* (- 1) main_~b~0 main_~a~0) (* main_~b~0 main_~a~0) (* (* main_~a~0 2) (+ (div main_~b~0 2) 1))) (* main_~b~0 main_~a~0)) (= (mod main_~b~0 2) 0) (<= 0 main_~b~0))} is VALID [2022-04-14 22:50:10,482 INFO L290 TraceCheckUtils]: 9: Hoare triple {1480#(not (= |assume_abort_if_not_#in~cond| 0))} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1480#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 22:50:10,482 INFO L290 TraceCheckUtils]: 8: Hoare triple {1613#(or (not (= |assume_abort_if_not_#in~cond| 0)) (= assume_abort_if_not_~cond 0))} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {1480#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 22:50:10,482 INFO L290 TraceCheckUtils]: 7: Hoare triple {1450#true} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {1613#(or (not (= |assume_abort_if_not_#in~cond| 0)) (= assume_abort_if_not_~cond 0))} is VALID [2022-04-14 22:50:10,482 INFO L272 TraceCheckUtils]: 6: Hoare triple {1450#true} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1450#true} is VALID [2022-04-14 22:50:10,483 INFO L290 TraceCheckUtils]: 5: Hoare triple {1450#true} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1450#true} is VALID [2022-04-14 22:50:10,483 INFO L272 TraceCheckUtils]: 4: Hoare triple {1450#true} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1450#true} is VALID [2022-04-14 22:50:10,483 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1450#true} {1450#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1450#true} is VALID [2022-04-14 22:50:10,483 INFO L290 TraceCheckUtils]: 2: Hoare triple {1450#true} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1450#true} is VALID [2022-04-14 22:50:10,483 INFO L290 TraceCheckUtils]: 1: Hoare triple {1450#true} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {1450#true} is VALID [2022-04-14 22:50:10,483 INFO L272 TraceCheckUtils]: 0: Hoare triple {1450#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1450#true} is VALID [2022-04-14 22:50:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:50:10,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:50:10,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154699648] [2022-04-14 22:50:10,484 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:50:10,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966803160] [2022-04-14 22:50:10,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966803160] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-14 22:50:10,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-14 22:50:10,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2022-04-14 22:50:10,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814423791] [2022-04-14 22:50:10,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-14 22:50:10,484 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.6) internal successors, (32), 17 states have internal predecessors, (32), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 28 [2022-04-14 22:50:10,485 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:50:10,485 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 20 states, 20 states have (on average 1.6) internal successors, (32), 17 states have internal predecessors, (32), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-14 22:50:10,524 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:50:10,524 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-04-14 22:50:10,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:50:10,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-04-14 22:50:10,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2022-04-14 22:50:10,525 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 20 states, 20 states have (on average 1.6) internal successors, (32), 17 states have internal predecessors, (32), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-14 22:50:12,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:50:12,466 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2022-04-14 22:50:12,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-14 22:50:12,466 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.6) internal successors, (32), 17 states have internal predecessors, (32), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 28 [2022-04-14 22:50:12,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:50:12,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.6) internal successors, (32), 17 states have internal predecessors, (32), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-14 22:50:12,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 67 transitions. [2022-04-14 22:50:12,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.6) internal successors, (32), 17 states have internal predecessors, (32), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-14 22:50:12,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 67 transitions. [2022-04-14 22:50:12,469 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 16 states and 67 transitions. [2022-04-14 22:50:12,544 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:50:12,545 INFO L225 Difference]: With dead ends: 68 [2022-04-14 22:50:12,545 INFO L226 Difference]: Without dead ends: 68 [2022-04-14 22:50:12,545 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2022-04-14 22:50:12,546 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 53 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-14 22:50:12,546 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 170 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-14 22:50:12,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-04-14 22:50:12,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2022-04-14 22:50:12,549 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:50:12,549 INFO L82 GeneralOperation]: Start isEquivalent. First operand 68 states. Second operand has 65 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 51 states have internal predecessors, (59), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-14 22:50:12,549 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand has 65 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 51 states have internal predecessors, (59), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-14 22:50:12,550 INFO L87 Difference]: Start difference. First operand 68 states. Second operand has 65 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 51 states have internal predecessors, (59), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-14 22:50:12,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:50:12,552 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2022-04-14 22:50:12,552 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2022-04-14 22:50:12,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:50:12,552 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:50:12,552 INFO L74 IsIncluded]: Start isIncluded. First operand has 65 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 51 states have internal predecessors, (59), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) Second operand 68 states. [2022-04-14 22:50:12,552 INFO L87 Difference]: Start difference. First operand has 65 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 51 states have internal predecessors, (59), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) Second operand 68 states. [2022-04-14 22:50:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:50:12,554 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2022-04-14 22:50:12,554 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2022-04-14 22:50:12,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:50:12,555 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:50:12,555 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:50:12,555 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:50:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 51 states have internal predecessors, (59), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-14 22:50:12,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 77 transitions. [2022-04-14 22:50:12,557 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 77 transitions. Word has length 28 [2022-04-14 22:50:12,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:50:12,557 INFO L478 AbstractCegarLoop]: Abstraction has 65 states and 77 transitions. [2022-04-14 22:50:12,557 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.6) internal successors, (32), 17 states have internal predecessors, (32), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-14 22:50:12,557 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 77 transitions. [2022-04-14 22:50:12,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-04-14 22:50:12,557 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:50:12,557 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:50:12,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-14 22:50:12,758 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:50:12,758 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:50:12,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:50:12,759 INFO L85 PathProgramCache]: Analyzing trace with hash -357510123, now seen corresponding path program 1 times [2022-04-14 22:50:12,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:50:12,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710473534] [2022-04-14 22:50:12,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:50:12,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:50:12,768 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:50:12,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468663177] [2022-04-14 22:50:12,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:50:12,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:50:12,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:50:12,771 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) [2022-04-14 22:50:12,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-14 22:50:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:50:12,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 10 conjunts are in the unsatisfiable core [2022-04-14 22:50:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:50:12,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:50:19,944 INFO L272 TraceCheckUtils]: 0: Hoare triple {1920#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:19,944 INFO L290 TraceCheckUtils]: 1: Hoare triple {1920#true} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {1920#true} is VALID [2022-04-14 22:50:19,944 INFO L290 TraceCheckUtils]: 2: Hoare triple {1920#true} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:19,945 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1920#true} {1920#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:19,945 INFO L272 TraceCheckUtils]: 4: Hoare triple {1920#true} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:19,945 INFO L290 TraceCheckUtils]: 5: Hoare triple {1920#true} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1920#true} is VALID [2022-04-14 22:50:19,945 INFO L272 TraceCheckUtils]: 6: Hoare triple {1920#true} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1920#true} is VALID [2022-04-14 22:50:19,945 INFO L290 TraceCheckUtils]: 7: Hoare triple {1920#true} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {1920#true} is VALID [2022-04-14 22:50:19,945 INFO L290 TraceCheckUtils]: 8: Hoare triple {1920#true} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:19,945 INFO L290 TraceCheckUtils]: 9: Hoare triple {1920#true} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:19,945 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1920#true} {1920#true} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1920#true} is VALID [2022-04-14 22:50:19,945 INFO L290 TraceCheckUtils]: 11: Hoare triple {1920#true} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {1920#true} is VALID [2022-04-14 22:50:19,945 INFO L290 TraceCheckUtils]: 12: Hoare triple {1920#true} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1920#true} is VALID [2022-04-14 22:50:19,946 INFO L290 TraceCheckUtils]: 13: Hoare triple {1920#true} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1920#true} is VALID [2022-04-14 22:50:19,946 INFO L272 TraceCheckUtils]: 14: Hoare triple {1920#true} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1920#true} is VALID [2022-04-14 22:50:19,946 INFO L290 TraceCheckUtils]: 15: Hoare triple {1920#true} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1920#true} is VALID [2022-04-14 22:50:19,946 INFO L290 TraceCheckUtils]: 16: Hoare triple {1920#true} [90] L13-->L13-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:19,946 INFO L290 TraceCheckUtils]: 17: Hoare triple {1920#true} [95] L13-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:19,946 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1920#true} {1920#true} [102] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1920#true} is VALID [2022-04-14 22:50:19,946 INFO L290 TraceCheckUtils]: 19: Hoare triple {1920#true} [92] L34-1-->L38: Formula: (not (= v_main_~y~0_8 0)) InVars {main_~y~0=v_main_~y~0_8} OutVars{main_~y~0=v_main_~y~0_8} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:19,946 INFO L290 TraceCheckUtils]: 20: Hoare triple {1920#true} [96] L38-->L38-2: Formula: (and (= (let ((.cse0 (mod v_main_~y~0_10 2))) (ite (and (< v_main_~y~0_10 0) (not (= .cse0 0))) (+ (- 2) .cse0) .cse0)) 1) (= v_main_~z~0_5 (+ v_main_~x~0_6 v_main_~z~0_6)) (= v_main_~y~0_9 (+ (- 1) v_main_~y~0_10))) InVars {main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_6} OutVars{main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5} AuxVars[] AssignedVars[main_~z~0, main_~y~0] {1920#true} is VALID [2022-04-14 22:50:19,946 INFO L290 TraceCheckUtils]: 21: Hoare triple {1920#true} [98] L38-2-->L33-3: Formula: (and (= v_main_~x~0_1 (* v_main_~x~0_2 2)) (= v_main_~y~0_2 (let ((.cse0 (div v_main_~y~0_3 2))) (ite (and (< v_main_~y~0_3 0) (not (= (mod v_main_~y~0_3 2) 0))) (+ .cse0 1) .cse0)))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_3} OutVars{main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_2} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {1920#true} is VALID [2022-04-14 22:50:19,946 INFO L290 TraceCheckUtils]: 22: Hoare triple {1920#true} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1920#true} is VALID [2022-04-14 22:50:19,947 INFO L290 TraceCheckUtils]: 23: Hoare triple {1920#true} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1920#true} is VALID [2022-04-14 22:50:19,947 INFO L272 TraceCheckUtils]: 24: Hoare triple {1920#true} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1920#true} is VALID [2022-04-14 22:50:19,947 INFO L290 TraceCheckUtils]: 25: Hoare triple {1920#true} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {2000#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:50:19,948 INFO L290 TraceCheckUtils]: 26: Hoare triple {2000#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} [90] L13-->L13-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {2004#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:50:19,948 INFO L290 TraceCheckUtils]: 27: Hoare triple {2004#(not (= |__VERIFIER_assert_#in~cond| 0))} [95] L13-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {2004#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:50:21,951 WARN L284 TraceCheckUtils]: 28: Hoare quadruple {2004#(not (= |__VERIFIER_assert_#in~cond| 0))} {1920#true} [102] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {2011#(or (and (not (= main_~y~0 0)) (= (mod (+ (* (- 1) main_~z~0) (* main_~b~0 main_~a~0)) main_~y~0) 0)) (= (+ (* (- 1) main_~z~0) (* main_~b~0 main_~a~0)) 0))} is UNKNOWN [2022-04-14 22:50:21,951 INFO L290 TraceCheckUtils]: 29: Hoare triple {2011#(or (and (not (= main_~y~0 0)) (= (mod (+ (* (- 1) main_~z~0) (* main_~b~0 main_~a~0)) main_~y~0) 0)) (= (+ (* (- 1) main_~z~0) (* main_~b~0 main_~a~0)) 0))} [91] L34-1-->L33-4: Formula: (= v_main_~y~0_7 0) InVars {main_~y~0=v_main_~y~0_7} OutVars{main_~y~0=v_main_~y~0_7} AuxVars[] AssignedVars[] {2015#(= main_~z~0 (* main_~b~0 main_~a~0))} is VALID [2022-04-14 22:50:21,952 INFO L272 TraceCheckUtils]: 30: Hoare triple {2015#(= main_~z~0 (* main_~b~0 main_~a~0))} [81] L33-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~z~0_8 (* v_main_~a~0_8 v_main_~b~0_10)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~b~0=v_main_~b~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~z~0, main_~b~0, main_~a~0] {2019#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:50:21,952 INFO L290 TraceCheckUtils]: 31: Hoare triple {2019#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {2023#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:50:21,953 INFO L290 TraceCheckUtils]: 32: Hoare triple {2023#(<= 1 __VERIFIER_assert_~cond)} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1921#false} is VALID [2022-04-14 22:50:21,953 INFO L290 TraceCheckUtils]: 33: Hoare triple {1921#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1921#false} is VALID [2022-04-14 22:50:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-14 22:50:21,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 22:50:28,396 INFO L290 TraceCheckUtils]: 33: Hoare triple {1921#false} [93] L14-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1921#false} is VALID [2022-04-14 22:50:28,396 INFO L290 TraceCheckUtils]: 32: Hoare triple {2023#(<= 1 __VERIFIER_assert_~cond)} [89] L13-->L14: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1921#false} is VALID [2022-04-14 22:50:28,397 INFO L290 TraceCheckUtils]: 31: Hoare triple {2019#(<= 1 |__VERIFIER_assert_#in~cond|)} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {2023#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:50:28,398 INFO L272 TraceCheckUtils]: 30: Hoare triple {2015#(= main_~z~0 (* main_~b~0 main_~a~0))} [81] L33-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~z~0_8 (* v_main_~a~0_8 v_main_~b~0_10)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~b~0=v_main_~b~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~z~0, main_~b~0, main_~a~0] {2019#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:50:28,398 INFO L290 TraceCheckUtils]: 29: Hoare triple {2042#(or (not (= main_~y~0 0)) (= main_~z~0 (* main_~b~0 main_~a~0)))} [91] L34-1-->L33-4: Formula: (= v_main_~y~0_7 0) InVars {main_~y~0=v_main_~y~0_7} OutVars{main_~y~0=v_main_~y~0_7} AuxVars[] AssignedVars[] {2015#(= main_~z~0 (* main_~b~0 main_~a~0))} is VALID [2022-04-14 22:50:28,399 INFO L284 TraceCheckUtils]: 28: Hoare quadruple {2004#(not (= |__VERIFIER_assert_#in~cond| 0))} {1920#true} [102] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {2042#(or (not (= main_~y~0 0)) (= main_~z~0 (* main_~b~0 main_~a~0)))} is VALID [2022-04-14 22:50:28,399 INFO L290 TraceCheckUtils]: 27: Hoare triple {2004#(not (= |__VERIFIER_assert_#in~cond| 0))} [95] L13-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {2004#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:50:28,399 INFO L290 TraceCheckUtils]: 26: Hoare triple {2055#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} [90] L13-->L13-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {2004#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:50:28,400 INFO L290 TraceCheckUtils]: 25: Hoare triple {1920#true} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {2055#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-14 22:50:28,400 INFO L272 TraceCheckUtils]: 24: Hoare triple {1920#true} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1920#true} is VALID [2022-04-14 22:50:28,400 INFO L290 TraceCheckUtils]: 23: Hoare triple {1920#true} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1920#true} is VALID [2022-04-14 22:50:28,400 INFO L290 TraceCheckUtils]: 22: Hoare triple {1920#true} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1920#true} is VALID [2022-04-14 22:50:28,400 INFO L290 TraceCheckUtils]: 21: Hoare triple {1920#true} [98] L38-2-->L33-3: Formula: (and (= v_main_~x~0_1 (* v_main_~x~0_2 2)) (= v_main_~y~0_2 (let ((.cse0 (div v_main_~y~0_3 2))) (ite (and (< v_main_~y~0_3 0) (not (= (mod v_main_~y~0_3 2) 0))) (+ .cse0 1) .cse0)))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_3} OutVars{main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_2} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {1920#true} is VALID [2022-04-14 22:50:28,400 INFO L290 TraceCheckUtils]: 20: Hoare triple {1920#true} [96] L38-->L38-2: Formula: (and (= (let ((.cse0 (mod v_main_~y~0_10 2))) (ite (and (< v_main_~y~0_10 0) (not (= .cse0 0))) (+ (- 2) .cse0) .cse0)) 1) (= v_main_~z~0_5 (+ v_main_~x~0_6 v_main_~z~0_6)) (= v_main_~y~0_9 (+ (- 1) v_main_~y~0_10))) InVars {main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_6} OutVars{main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5} AuxVars[] AssignedVars[main_~z~0, main_~y~0] {1920#true} is VALID [2022-04-14 22:50:28,400 INFO L290 TraceCheckUtils]: 19: Hoare triple {1920#true} [92] L34-1-->L38: Formula: (not (= v_main_~y~0_8 0)) InVars {main_~y~0=v_main_~y~0_8} OutVars{main_~y~0=v_main_~y~0_8} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:28,401 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1920#true} {1920#true} [102] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1920#true} is VALID [2022-04-14 22:50:28,401 INFO L290 TraceCheckUtils]: 17: Hoare triple {1920#true} [95] L13-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:28,401 INFO L290 TraceCheckUtils]: 16: Hoare triple {1920#true} [90] L13-->L13-2: Formula: (not (= v___VERIFIER_assert_~cond_2 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:28,401 INFO L290 TraceCheckUtils]: 15: Hoare triple {1920#true} [86] __VERIFIER_assertENTRY-->L13: Formula: (= v___VERIFIER_assert_~cond_3 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1920#true} is VALID [2022-04-14 22:50:28,401 INFO L272 TraceCheckUtils]: 14: Hoare triple {1920#true} [87] L34-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~z~0_7 (* v_main_~y~0_11 v_main_~x~0_7)) (* v_main_~a~0_7 v_main_~b~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_11, main_~x~0=v_main_~x~0_7, main_~b~0=v_main_~b~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1920#true} is VALID [2022-04-14 22:50:28,401 INFO L290 TraceCheckUtils]: 13: Hoare triple {1920#true} [83] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1920#true} is VALID [2022-04-14 22:50:28,401 INFO L290 TraceCheckUtils]: 12: Hoare triple {1920#true} [78] L33-3-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1920#true} is VALID [2022-04-14 22:50:28,401 INFO L290 TraceCheckUtils]: 11: Hoare triple {1920#true} [75] L27-1-->L33-3: Formula: (and (= v_main_~z~0_3 0) (= v_main_~a~0_5 v_main_~x~0_4) (= v_main_~b~0_6 v_main_~y~0_5)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_4, main_~b~0=v_main_~b~0_6, main_~z~0=v_main_~z~0_3, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_~y~0] {1920#true} is VALID [2022-04-14 22:50:28,401 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1920#true} {1920#true} [100] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1920#true} is VALID [2022-04-14 22:50:28,401 INFO L290 TraceCheckUtils]: 9: Hoare triple {1920#true} [84] L10-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:28,402 INFO L290 TraceCheckUtils]: 8: Hoare triple {1920#true} [80] L10-->L10-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:28,402 INFO L290 TraceCheckUtils]: 7: Hoare triple {1920#true} [76] assume_abort_if_notENTRY-->L10: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {1920#true} is VALID [2022-04-14 22:50:28,402 INFO L272 TraceCheckUtils]: 6: Hoare triple {1920#true} [74] L27-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~b~0_8) 1 0)) InVars {main_~b~0=v_main_~b~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~b~0, assume_abort_if_not_#in~cond] {1920#true} is VALID [2022-04-14 22:50:28,402 INFO L290 TraceCheckUtils]: 5: Hoare triple {1920#true} [72] mainENTRY-->L27: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~b~0_2 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3, main_~b~0=v_main_~b~0_2, main_~z~0=v_main_~z~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~z~0, main_~y~0, main_~b~0, main_~a~0] {1920#true} is VALID [2022-04-14 22:50:28,402 INFO L272 TraceCheckUtils]: 4: Hoare triple {1920#true} [69] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:28,402 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1920#true} {1920#true} [99] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:28,402 INFO L290 TraceCheckUtils]: 2: Hoare triple {1920#true} [73] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:28,402 INFO L290 TraceCheckUtils]: 1: Hoare triple {1920#true} [70] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {1920#true} is VALID [2022-04-14 22:50:28,402 INFO L272 TraceCheckUtils]: 0: Hoare triple {1920#true} [68] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1920#true} is VALID [2022-04-14 22:50:28,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-14 22:50:28,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:50:28,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710473534] [2022-04-14 22:50:28,403 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:50:28,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468663177] [2022-04-14 22:50:28,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468663177] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-14 22:50:28,403 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-14 22:50:28,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2022-04-14 22:50:28,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719380308] [2022-04-14 22:50:28,403 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-14 22:50:28,404 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 34 [2022-04-14 22:50:28,404 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:50:28,404 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-14 22:50:30,429 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 34 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-14 22:50:30,430 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-14 22:50:30,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:50:30,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-14 22:50:30,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-04-14 22:50:30,430 INFO L87 Difference]: Start difference. First operand 65 states and 77 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-14 22:50:32,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-04-14 22:50:32,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:50:32,938 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2022-04-14 22:50:32,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-14 22:50:32,939 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 34 [2022-04-14 22:50:32,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:50:32,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-14 22:50:32,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 38 transitions. [2022-04-14 22:50:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-14 22:50:32,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 38 transitions. [2022-04-14 22:50:32,941 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 38 transitions. [2022-04-14 22:50:36,966 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 36 inductive. 0 not inductive. 2 times theorem prover too weak to decide inductivity. [2022-04-14 22:50:36,967 INFO L225 Difference]: With dead ends: 70 [2022-04-14 22:50:36,968 INFO L226 Difference]: Without dead ends: 65 [2022-04-14 22:50:36,968 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-04-14 22:50:36,968 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 18 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-14 22:50:36,968 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 124 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-14 22:50:36,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-04-14 22:50:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-04-14 22:50:36,971 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:50:36,971 INFO L82 GeneralOperation]: Start isEquivalent. First operand 65 states. Second operand has 65 states, 48 states have (on average 1.1875) internal successors, (57), 51 states have internal predecessors, (57), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-14 22:50:36,972 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand has 65 states, 48 states have (on average 1.1875) internal successors, (57), 51 states have internal predecessors, (57), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-14 22:50:36,972 INFO L87 Difference]: Start difference. First operand 65 states. Second operand has 65 states, 48 states have (on average 1.1875) internal successors, (57), 51 states have internal predecessors, (57), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-14 22:50:36,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:50:36,973 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2022-04-14 22:50:36,973 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2022-04-14 22:50:36,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:50:36,974 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:50:36,974 INFO L74 IsIncluded]: Start isIncluded. First operand has 65 states, 48 states have (on average 1.1875) internal successors, (57), 51 states have internal predecessors, (57), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) Second operand 65 states. [2022-04-14 22:50:36,974 INFO L87 Difference]: Start difference. First operand has 65 states, 48 states have (on average 1.1875) internal successors, (57), 51 states have internal predecessors, (57), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) Second operand 65 states. [2022-04-14 22:50:36,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:50:36,978 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2022-04-14 22:50:36,978 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2022-04-14 22:50:36,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:50:36,979 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:50:36,979 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:50:36,979 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:50:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 48 states have (on average 1.1875) internal successors, (57), 51 states have internal predecessors, (57), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-14 22:50:36,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2022-04-14 22:50:36,980 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 34 [2022-04-14 22:50:36,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:50:36,980 INFO L478 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2022-04-14 22:50:36,980 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2022-04-14 22:50:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2022-04-14 22:50:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-14 22:50:36,981 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:50:36,981 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:50:37,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-14 22:50:37,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:50:37,200 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:50:37,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:50:37,200 INFO L85 PathProgramCache]: Analyzing trace with hash -782932132, now seen corresponding path program 2 times [2022-04-14 22:50:37,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:50:37,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030086324] [2022-04-14 22:50:37,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:50:37,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:50:37,223 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:50:37,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591033004] [2022-04-14 22:50:37,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-14 22:50:37,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:50:37,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:50:37,224 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) [2022-04-14 22:50:37,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-14 22:50:37,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-14 22:50:37,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-04-14 22:50:37,264 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-14 22:50:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-14 22:50:37,317 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-14 22:50:37,317 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-14 22:50:37,318 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-14 22:50:37,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-04-14 22:50:37,547 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-04-14 22:50:37,549 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:50:37,551 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-14 22:50:37,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 10:50:37 BasicIcfg [2022-04-14 22:50:37,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-14 22:50:37,569 INFO L158 Benchmark]: Toolchain (without parser) took 139463.49ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 125.6MB in the beginning and 177.1MB in the end (delta: -51.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-14 22:50:37,569 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-14 22:50:37,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.95ms. Allocated memory is still 176.2MB. Free memory was 125.3MB in the beginning and 151.4MB in the end (delta: -26.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-14 22:50:37,570 INFO L158 Benchmark]: Boogie Preprocessor took 32.79ms. Allocated memory is still 176.2MB. Free memory was 151.4MB in the beginning and 149.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-14 22:50:37,570 INFO L158 Benchmark]: RCFGBuilder took 242.28ms. Allocated memory is still 176.2MB. Free memory was 149.9MB in the beginning and 138.7MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-14 22:50:37,570 INFO L158 Benchmark]: IcfgTransformer took 40.13ms. Allocated memory is still 176.2MB. Free memory was 138.7MB in the beginning and 137.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-14 22:50:37,570 INFO L158 Benchmark]: TraceAbstraction took 138965.36ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 136.7MB in the beginning and 177.1MB in the end (delta: -40.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-14 22:50:37,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 178.95ms. Allocated memory is still 176.2MB. Free memory was 125.3MB in the beginning and 151.4MB in the end (delta: -26.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.79ms. Allocated memory is still 176.2MB. Free memory was 151.4MB in the beginning and 149.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 242.28ms. Allocated memory is still 176.2MB. Free memory was 149.9MB in the beginning and 138.7MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 40.13ms. Allocated memory is still 176.2MB. Free memory was 138.7MB in the beginning and 137.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 138965.36ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 136.7MB in the beginning and 177.1MB in the end (delta: -40.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L20] int counter = 0; VAL [\old(counter)=11, counter=0] [L22] int a, b; [L23] long long x, y, z; [L25] a = __VERIFIER_nondet_int() [L26] b = __VERIFIER_nondet_int() [L27] CALL assume_abort_if_not(b >= 1) VAL [\old(cond)=1, \old(counter)=0, counter=0] [L10] COND FALSE !(!cond) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=0] [L27] RET assume_abort_if_not(b >= 1) VAL [\old(counter)=0, a=2, b=7, counter=0] [L29] x = a [L30] y = b [L31] z = 0 VAL [\old(counter)=0, a=2, b=7, counter=0, x=2, y=7, z=0] [L33] EXPR counter++ VAL [\old(counter)=0, a=2, b=7, counter=1, counter++=0, x=2, y=7, z=0] [L33] COND TRUE counter++<2 [L34] CALL __VERIFIER_assert(z + x * y == (long long) a * b) VAL [\old(cond)=1, \old(counter)=0, counter=1] [L13] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=1] [L34] RET __VERIFIER_assert(z + x * y == (long long) a * b) VAL [\old(counter)=0, a=2, b=7, counter=1, x=2, y=7, z=0] [L35] COND FALSE !(!(y != 0)) VAL [\old(counter)=0, a=2, b=7, counter=1, x=2, y=7, z=0] [L38] COND TRUE y % 2 == 1 [L39] z = z + x [L40] y = y - 1 VAL [\old(counter)=0, a=2, b=7, counter=1, x=2, y=6, z=2] [L42] x = 2 * x [L43] y = y / 2 VAL [\old(counter)=0, a=2, b=7, counter=1, x=4, y=3, z=2] [L33] EXPR counter++ VAL [\old(counter)=0, a=2, b=7, counter=2, counter++=1, x=4, y=3, z=2] [L33] COND TRUE counter++<2 [L34] CALL __VERIFIER_assert(z + x * y == (long long) a * b) VAL [\old(cond)=1, \old(counter)=0, counter=2] [L13] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=2] [L34] RET __VERIFIER_assert(z + x * y == (long long) a * b) VAL [\old(counter)=0, a=2, b=7, counter=2, x=4, y=3, z=2] [L35] COND FALSE !(!(y != 0)) VAL [\old(counter)=0, a=2, b=7, counter=2, x=4, y=3, z=2] [L38] COND TRUE y % 2 == 1 [L39] z = z + x [L40] y = y - 1 VAL [\old(counter)=0, a=2, b=7, counter=2, x=4, y=2, z=6] [L42] x = 2 * x [L43] y = y / 2 VAL [\old(counter)=0, a=2, b=7, counter=2, x=8, y=1, z=6] [L33] EXPR counter++ VAL [\old(counter)=0, a=2, b=7, counter=3, counter++=2, x=8, y=1, z=6] [L33] COND FALSE !(counter++<2) [L45] CALL __VERIFIER_assert(z == (long long) a * b) VAL [\old(cond)=0, \old(counter)=0, counter=3] [L13] COND TRUE !(cond) VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=3] [L15] reach_error() VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 138.9s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 21.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 819 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 626 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 605 IncrementalHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 193 mSDtfsCounter, 605 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 313 GetRequests, 239 SyntacticMatches, 6 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=7, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 13 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 112.6s InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 301 ConstructedInterpolants, 0 QuantifiedInterpolants, 1329 SizeOfPredicates, 21 NumberOfNonLiveVariables, 705 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 35/54 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-14 22:50:37,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...