/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/ps5-ll_unwindbound5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 20:54:23,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 20:54:23,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 20:54:23,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-07 20:54:23,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-07 20:54:23,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-07 20:54:23,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-07 20:54:23,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-07 20:54:23,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-07 20:54:23,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-07 20:54:23,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-07 20:54:23,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-07 20:54:23,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 20:54:23,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 20:54:23,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 20:54:23,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 20:54:23,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 20:54:23,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 20:54:23,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 20:54:23,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 20:54:23,136 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 20:54:23,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 20:54:23,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 20:54:23,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 20:54:23,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 20:54:23,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-07 20:54:23,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-07 20:54:23,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-07 20:54:23,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-07 20:54:23,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-07 20:54:23,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-07 20:54:23,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-07 20:54:23,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-07 20:54:23,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-07 20:54:23,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 20:54:23,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 20:54:23,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 20:54:23,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-07 20:54:23,157 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 20:54:23,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 20:54:23,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 20:54:23,159 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-07 20:54:23,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 20:54:23,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-07 20:54:23,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 20:54:23,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 20:54:23,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 20:54:23,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 20:54:23,160 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-07 20:54:23,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 20:54:23,160 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 20:54:23,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 20:54:23,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 20:54:23,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 20:54:23,160 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 20:54:23,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 20:54:23,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 20:54:23,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 20:54:23,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-07 20:54:23,162 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-07 20:54:23,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 20:54:23,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 20:54:23,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 20:54:23,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 20:54:23,346 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 20:54:23,346 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 20:54:23,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound5.c [2022-04-07 20:54:23,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b519de8ad/27f052c7acfc46f6a644903e431a8e7e/FLAG8d6dc3dcf [2022-04-07 20:54:23,721 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 20:54:23,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_unwindbound5.c [2022-04-07 20:54:23,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b519de8ad/27f052c7acfc46f6a644903e431a8e7e/FLAG8d6dc3dcf [2022-04-07 20:54:24,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b519de8ad/27f052c7acfc46f6a644903e431a8e7e [2022-04-07 20:54:24,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 20:54:24,165 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-07 20:54:24,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 20:54:24,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 20:54:24,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 20:54:24,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 08:54:24" (1/1) ... [2022-04-07 20:54:24,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1acab2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 08:54:24, skipping insertion in model container [2022-04-07 20:54:24,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 08:54:24" (1/1) ... [2022-04-07 20:54:24,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 20:54:24,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 20:54:24,310 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/ps5-ll_unwindbound5.c[458,471] [2022-04-07 20:54:24,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 20:54:24,346 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 20:54:24,353 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/ps5-ll_unwindbound5.c[458,471] [2022-04-07 20:54:24,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 20:54:24,382 INFO L208 MainTranslator]: Completed translation [2022-04-07 20:54:24,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 08:54:24 WrapperNode [2022-04-07 20:54:24,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 20:54:24,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 20:54:24,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 20:54:24,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 20:54:24,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 08:54:24" (1/1) ... [2022-04-07 20:54:24,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 08:54:24" (1/1) ... [2022-04-07 20:54:24,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 08:54:24" (1/1) ... [2022-04-07 20:54:24,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 08:54:24" (1/1) ... [2022-04-07 20:54:24,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 08:54:24" (1/1) ... [2022-04-07 20:54:24,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 08:54:24" (1/1) ... [2022-04-07 20:54:24,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 08:54:24" (1/1) ... [2022-04-07 20:54:24,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 20:54:24,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 20:54:24,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 20:54:24,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 20:54:24,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 08:54:24" (1/1) ... [2022-04-07 20:54:24,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 20:54:24,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 20:54:24,440 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) [2022-04-07 20:54:24,446 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 [2022-04-07 20:54:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 20:54:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 20:54:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 20:54:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-07 20:54:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-07 20:54:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 20:54:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 20:54:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 20:54:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 20:54:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 20:54:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2022-04-07 20:54:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-07 20:54:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-07 20:54:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 20:54:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 20:54:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 20:54:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 20:54:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 20:54:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 20:54:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 20:54:24,510 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 20:54:24,511 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 20:54:24,674 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 20:54:24,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 20:54:24,679 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 20:54:24,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 08:54:24 BoogieIcfgContainer [2022-04-07 20:54:24,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 20:54:24,681 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-07 20:54:24,681 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-07 20:54:24,681 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-07 20:54:24,683 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 08:54:24" (1/1) ... [2022-04-07 20:54:24,685 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-07 20:54:24,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 08:54:24 BasicIcfg [2022-04-07 20:54:24,699 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-07 20:54:24,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 20:54:24,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 20:54:24,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 20:54:24,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 08:54:24" (1/4) ... [2022-04-07 20:54:24,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6a1998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 08:54:24, skipping insertion in model container [2022-04-07 20:54:24,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 08:54:24" (2/4) ... [2022-04-07 20:54:24,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6a1998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 08:54:24, skipping insertion in model container [2022-04-07 20:54:24,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 08:54:24" (3/4) ... [2022-04-07 20:54:24,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6a1998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 08:54:24, skipping insertion in model container [2022-04-07 20:54:24,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 08:54:24" (4/4) ... [2022-04-07 20:54:24,704 INFO L111 eAbstractionObserver]: Analyzing ICFG ps5-ll_unwindbound5.cJordan [2022-04-07 20:54:24,707 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-07 20:54:24,707 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 20:54:24,733 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 20:54:24,738 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 [2022-04-07 20:54:24,739 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 20:54:24,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-07 20:54:24,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-07 20:54:24,756 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 20:54:24,756 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 20:54:24,757 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 20:54:24,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 20:54:24,760 INFO L85 PathProgramCache]: Analyzing trace with hash 843387237, now seen corresponding path program 1 times [2022-04-07 20:54:24,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 20:54:24,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116142798] [2022-04-07 20:54:24,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:24,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 20:54:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:24,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 20:54:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:24,892 INFO L290 TraceCheckUtils]: 0: Hoare triple {41#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] 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| 2) 9) (= (select |v_#length_1| 3) 12) (= (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] {32#true} is VALID [2022-04-07 20:54:24,892 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-07 20:54:24,892 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {32#true} {32#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-07 20:54:24,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-07 20:54:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:24,899 INFO L290 TraceCheckUtils]: 0: Hoare triple {32#true} [72] assume_abort_if_notENTRY-->L7: 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] {32#true} is VALID [2022-04-07 20:54:24,900 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-07 20:54:24,900 INFO L290 TraceCheckUtils]: 2: Hoare triple {33#false} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-07 20:54:24,900 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {33#false} {32#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {33#false} is VALID [2022-04-07 20:54:24,901 INFO L272 TraceCheckUtils]: 0: Hoare triple {32#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {41#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 20:54:24,901 INFO L290 TraceCheckUtils]: 1: Hoare triple {41#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] 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| 2) 9) (= (select |v_#length_1| 3) 12) (= (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] {32#true} is VALID [2022-04-07 20:54:24,902 INFO L290 TraceCheckUtils]: 2: Hoare triple {32#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-07 20:54:24,902 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {32#true} {32#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-07 20:54:24,902 INFO L272 TraceCheckUtils]: 4: Hoare triple {32#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-07 20:54:24,902 INFO L290 TraceCheckUtils]: 5: Hoare triple {32#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {32#true} is VALID [2022-04-07 20:54:24,902 INFO L272 TraceCheckUtils]: 6: Hoare triple {32#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {32#true} is VALID [2022-04-07 20:54:24,903 INFO L290 TraceCheckUtils]: 7: Hoare triple {32#true} [72] assume_abort_if_notENTRY-->L7: 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] {32#true} is VALID [2022-04-07 20:54:24,903 INFO L290 TraceCheckUtils]: 8: Hoare triple {32#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-07 20:54:24,903 INFO L290 TraceCheckUtils]: 9: Hoare triple {33#false} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-07 20:54:24,904 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {33#false} {32#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {33#false} is VALID [2022-04-07 20:54:24,904 INFO L290 TraceCheckUtils]: 11: Hoare triple {33#false} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {33#false} is VALID [2022-04-07 20:54:24,904 INFO L290 TraceCheckUtils]: 12: Hoare triple {33#false} [73] L28-3-->L28-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-07 20:54:24,904 INFO L272 TraceCheckUtils]: 13: Hoare triple {33#false} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {33#false} is VALID [2022-04-07 20:54:24,904 INFO L290 TraceCheckUtils]: 14: Hoare triple {33#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {33#false} is VALID [2022-04-07 20:54:24,905 INFO L290 TraceCheckUtils]: 15: Hoare triple {33#false} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-07 20:54:24,905 INFO L290 TraceCheckUtils]: 16: Hoare triple {33#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-07 20:54:24,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 20:54:24,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 20:54:24,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116142798] [2022-04-07 20:54:24,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116142798] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 20:54:24,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 20:54:24,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 20:54:24,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699523072] [2022-04-07 20:54:24,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 20:54:24,911 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-07 20:54:24,912 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 20:54:24,914 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-07 20:54:24,931 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:24,931 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 20:54:24,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 20:54:24,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 20:54:24,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 20:54:24,946 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-07 20:54:25,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:25,018 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-04-07 20:54:25,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 20:54:25,019 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-07 20:54:25,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 20:54:25,020 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-07 20:54:25,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2022-04-07 20:54:25,024 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-07 20:54:25,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2022-04-07 20:54:25,026 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 37 transitions. [2022-04-07 20:54:25,072 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:25,083 INFO L225 Difference]: With dead ends: 30 [2022-04-07 20:54:25,083 INFO L226 Difference]: Without dead ends: 25 [2022-04-07 20:54:25,085 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 20:54:25,092 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 20:54:25,093 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 34 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 20:54:25,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-04-07 20:54:25,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-04-07 20:54:25,116 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 20:54:25,116 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 20:54:25,117 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 20:54:25,118 INFO L87 Difference]: Start difference. First operand 25 states. Second operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 20:54:25,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:25,124 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-04-07 20:54:25,125 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-07 20:54:25,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:25,125 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:25,125 INFO L74 IsIncluded]: Start isIncluded. First operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 25 states. [2022-04-07 20:54:25,126 INFO L87 Difference]: Start difference. First operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 25 states. [2022-04-07 20:54:25,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:25,129 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-04-07 20:54:25,130 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-07 20:54:25,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:25,131 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:25,133 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 20:54:25,133 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 20:54:25,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 20:54:25,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-04-07 20:54:25,142 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 17 [2022-04-07 20:54:25,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 20:54:25,142 INFO L478 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-04-07 20:54:25,143 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), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-07 20:54:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-04-07 20:54:25,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-07 20:54:25,144 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 20:54:25,144 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 20:54:25,144 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 20:54:25,144 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 20:54:25,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 20:54:25,146 INFO L85 PathProgramCache]: Analyzing trace with hash 208087835, now seen corresponding path program 1 times [2022-04-07 20:54:25,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 20:54:25,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273431204] [2022-04-07 20:54:25,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:25,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 20:54:25,163 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 20:54:25,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1472033560] [2022-04-07 20:54:25,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:25,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 20:54:25,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 20:54:25,164 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) [2022-04-07 20:54:25,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-07 20:54:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:25,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-07 20:54:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:25,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 20:54:25,371 INFO L272 TraceCheckUtils]: 0: Hoare triple {148#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {148#true} is VALID [2022-04-07 20:54:25,372 INFO L290 TraceCheckUtils]: 1: Hoare triple {148#true} [66] 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| 2) 9) (= (select |v_#length_1| 3) 12) (= (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] {156#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:25,372 INFO L290 TraceCheckUtils]: 2: Hoare triple {156#(<= ~counter~0 0)} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {156#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:25,372 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {156#(<= ~counter~0 0)} {148#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {156#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:25,373 INFO L272 TraceCheckUtils]: 4: Hoare triple {156#(<= ~counter~0 0)} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {156#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:25,374 INFO L290 TraceCheckUtils]: 5: Hoare triple {156#(<= ~counter~0 0)} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {156#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:25,376 INFO L272 TraceCheckUtils]: 6: Hoare triple {156#(<= ~counter~0 0)} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {156#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:25,376 INFO L290 TraceCheckUtils]: 7: Hoare triple {156#(<= ~counter~0 0)} [72] assume_abort_if_notENTRY-->L7: 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] {156#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:25,377 INFO L290 TraceCheckUtils]: 8: Hoare triple {156#(<= ~counter~0 0)} [76] L7-->L7-2: 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[] {156#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:25,377 INFO L290 TraceCheckUtils]: 9: Hoare triple {156#(<= ~counter~0 0)} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {156#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:25,378 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {156#(<= ~counter~0 0)} {156#(<= ~counter~0 0)} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {156#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:25,378 INFO L290 TraceCheckUtils]: 11: Hoare triple {156#(<= ~counter~0 0)} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {156#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:25,379 INFO L290 TraceCheckUtils]: 12: Hoare triple {156#(<= ~counter~0 0)} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {190#(<= |main_#t~post5| 0)} is VALID [2022-04-07 20:54:25,379 INFO L290 TraceCheckUtils]: 13: Hoare triple {190#(<= |main_#t~post5| 0)} [78] L28-1-->L28-4: Formula: (not (< |v_main_#t~post5_3| 5)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {149#false} is VALID [2022-04-07 20:54:25,380 INFO L272 TraceCheckUtils]: 14: Hoare triple {149#false} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {149#false} is VALID [2022-04-07 20:54:25,380 INFO L290 TraceCheckUtils]: 15: Hoare triple {149#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {149#false} is VALID [2022-04-07 20:54:25,380 INFO L290 TraceCheckUtils]: 16: Hoare triple {149#false} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {149#false} is VALID [2022-04-07 20:54:25,382 INFO L290 TraceCheckUtils]: 17: Hoare triple {149#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#false} is VALID [2022-04-07 20:54:25,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 20:54:25,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 20:54:25,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 20:54:25,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273431204] [2022-04-07 20:54:25,383 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 20:54:25,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472033560] [2022-04-07 20:54:25,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472033560] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 20:54:25,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 20:54:25,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 20:54:25,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756678880] [2022-04-07 20:54:25,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 20:54:25,388 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 [2022-04-07 20:54:25,388 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 20:54:25,389 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) [2022-04-07 20:54:25,402 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:25,403 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 20:54:25,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 20:54:25,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 20:54:25,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 20:54:25,404 INFO L87 Difference]: Start difference. First operand 24 states and 27 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) [2022-04-07 20:54:25,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:25,453 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-07 20:54:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 20:54:25,454 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 [2022-04-07 20:54:25,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 20:54:25,454 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) [2022-04-07 20:54:25,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2022-04-07 20:54:25,456 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) [2022-04-07 20:54:25,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2022-04-07 20:54:25,459 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 30 transitions. [2022-04-07 20:54:25,480 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:25,482 INFO L225 Difference]: With dead ends: 26 [2022-04-07 20:54:25,482 INFO L226 Difference]: Without dead ends: 26 [2022-04-07 20:54:25,483 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 [2022-04-07 20:54:25,484 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 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 [2022-04-07 20:54:25,485 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 20:54:25,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-04-07 20:54:25,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-04-07 20:54:25,489 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 20:54:25,490 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 20:54:25,490 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 20:54:25,490 INFO L87 Difference]: Start difference. First operand 26 states. Second operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 20:54:25,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:25,494 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-07 20:54:25,494 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-07 20:54:25,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:25,494 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:25,494 INFO L74 IsIncluded]: Start isIncluded. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 26 states. [2022-04-07 20:54:25,495 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 26 states. [2022-04-07 20:54:25,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:25,498 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-07 20:54:25,498 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-07 20:54:25,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:25,499 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:25,499 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 20:54:25,499 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 20:54:25,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-07 20:54:25,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-04-07 20:54:25,503 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 18 [2022-04-07 20:54:25,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 20:54:25,504 INFO L478 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-04-07 20:54:25,504 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) [2022-04-07 20:54:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-07 20:54:25,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-07 20:54:25,505 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 20:54:25,505 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 20:54:25,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-07 20:54:25,721 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 [2022-04-07 20:54:25,722 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 20:54:25,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 20:54:25,722 INFO L85 PathProgramCache]: Analyzing trace with hash 209190102, now seen corresponding path program 1 times [2022-04-07 20:54:25,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 20:54:25,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425482347] [2022-04-07 20:54:25,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:25,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 20:54:25,733 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 20:54:25,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [825315049] [2022-04-07 20:54:25,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:25,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 20:54:25,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 20:54:25,745 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) [2022-04-07 20:54:25,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-07 20:54:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:25,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-07 20:54:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:25,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 20:54:25,888 INFO L272 TraceCheckUtils]: 0: Hoare triple {309#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {309#true} is VALID [2022-04-07 20:54:25,889 INFO L290 TraceCheckUtils]: 1: Hoare triple {309#true} [66] 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| 2) 9) (= (select |v_#length_1| 3) 12) (= (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] {309#true} is VALID [2022-04-07 20:54:25,889 INFO L290 TraceCheckUtils]: 2: Hoare triple {309#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {309#true} is VALID [2022-04-07 20:54:25,889 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {309#true} {309#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {309#true} is VALID [2022-04-07 20:54:25,889 INFO L272 TraceCheckUtils]: 4: Hoare triple {309#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {309#true} is VALID [2022-04-07 20:54:25,889 INFO L290 TraceCheckUtils]: 5: Hoare triple {309#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {309#true} is VALID [2022-04-07 20:54:25,892 INFO L272 TraceCheckUtils]: 6: Hoare triple {309#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {309#true} is VALID [2022-04-07 20:54:25,892 INFO L290 TraceCheckUtils]: 7: Hoare triple {309#true} [72] assume_abort_if_notENTRY-->L7: 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] {309#true} is VALID [2022-04-07 20:54:25,892 INFO L290 TraceCheckUtils]: 8: Hoare triple {309#true} [76] L7-->L7-2: 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[] {309#true} is VALID [2022-04-07 20:54:25,892 INFO L290 TraceCheckUtils]: 9: Hoare triple {309#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {309#true} is VALID [2022-04-07 20:54:25,892 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {309#true} {309#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {309#true} is VALID [2022-04-07 20:54:25,893 INFO L290 TraceCheckUtils]: 11: Hoare triple {309#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {347#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:25,893 INFO L290 TraceCheckUtils]: 12: Hoare triple {347#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {347#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:25,894 INFO L290 TraceCheckUtils]: 13: Hoare triple {347#(and (= main_~x~0 0) (= main_~y~0 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {347#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:25,895 INFO L272 TraceCheckUtils]: 14: Hoare triple {347#(and (= main_~x~0 0) (= main_~y~0 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {357#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 20:54:25,895 INFO L290 TraceCheckUtils]: 15: Hoare triple {357#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {361#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 20:54:25,896 INFO L290 TraceCheckUtils]: 16: Hoare triple {361#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {310#false} is VALID [2022-04-07 20:54:25,896 INFO L290 TraceCheckUtils]: 17: Hoare triple {310#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {310#false} is VALID [2022-04-07 20:54:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 20:54:25,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 20:54:25,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 20:54:25,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425482347] [2022-04-07 20:54:25,896 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 20:54:25,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825315049] [2022-04-07 20:54:25,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825315049] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 20:54:25,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 20:54:25,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 20:54:25,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470685807] [2022-04-07 20:54:25,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 20:54:25,897 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 [2022-04-07 20:54:25,898 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 20:54:25,898 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) [2022-04-07 20:54:25,910 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:25,910 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 20:54:25,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 20:54:25,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 20:54:25,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 20:54:25,911 INFO L87 Difference]: Start difference. First operand 26 states and 29 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) [2022-04-07 20:54:26,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:26,017 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2022-04-07 20:54:26,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 20:54:26,017 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 [2022-04-07 20:54:26,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 20:54:26,018 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) [2022-04-07 20:54:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2022-04-07 20:54:26,021 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) [2022-04-07 20:54:26,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2022-04-07 20:54:26,023 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 40 transitions. [2022-04-07 20:54:26,052 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:26,053 INFO L225 Difference]: With dead ends: 34 [2022-04-07 20:54:26,053 INFO L226 Difference]: Without dead ends: 32 [2022-04-07 20:54:26,054 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 [2022-04-07 20:54:26,056 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 6 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 20:54:26,057 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 87 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 20:54:26,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-04-07 20:54:26,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-04-07 20:54:26,059 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 20:54:26,059 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-07 20:54:26,059 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-07 20:54:26,060 INFO L87 Difference]: Start difference. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-07 20:54:26,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:26,061 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-04-07 20:54:26,061 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-07 20:54:26,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:26,061 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:26,062 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 32 states. [2022-04-07 20:54:26,062 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 32 states. [2022-04-07 20:54:26,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:26,063 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-04-07 20:54:26,063 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-07 20:54:26,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:26,064 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:26,064 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 20:54:26,064 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 20:54:26,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-07 20:54:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-04-07 20:54:26,065 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 18 [2022-04-07 20:54:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 20:54:26,066 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-04-07 20:54:26,066 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) [2022-04-07 20:54:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-07 20:54:26,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-07 20:54:26,066 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 20:54:26,067 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] [2022-04-07 20:54:26,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-07 20:54:26,283 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 [2022-04-07 20:54:26,283 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 20:54:26,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 20:54:26,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1223799235, now seen corresponding path program 1 times [2022-04-07 20:54:26,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 20:54:26,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097704368] [2022-04-07 20:54:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:26,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 20:54:26,295 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 20:54:26,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937247416] [2022-04-07 20:54:26,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:26,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 20:54:26,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 20:54:26,297 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) [2022-04-07 20:54:26,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-07 20:54:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:26,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-07 20:54:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:26,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 20:54:26,465 INFO L272 TraceCheckUtils]: 0: Hoare triple {499#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {499#true} is VALID [2022-04-07 20:54:26,466 INFO L290 TraceCheckUtils]: 1: Hoare triple {499#true} [66] 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| 2) 9) (= (select |v_#length_1| 3) 12) (= (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] {507#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:26,466 INFO L290 TraceCheckUtils]: 2: Hoare triple {507#(<= ~counter~0 0)} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {507#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:26,466 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {507#(<= ~counter~0 0)} {499#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {507#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:26,474 INFO L272 TraceCheckUtils]: 4: Hoare triple {507#(<= ~counter~0 0)} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {507#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:26,474 INFO L290 TraceCheckUtils]: 5: Hoare triple {507#(<= ~counter~0 0)} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {507#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:26,475 INFO L272 TraceCheckUtils]: 6: Hoare triple {507#(<= ~counter~0 0)} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {507#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:26,475 INFO L290 TraceCheckUtils]: 7: Hoare triple {507#(<= ~counter~0 0)} [72] assume_abort_if_notENTRY-->L7: 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] {507#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:26,476 INFO L290 TraceCheckUtils]: 8: Hoare triple {507#(<= ~counter~0 0)} [76] L7-->L7-2: 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[] {507#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:26,476 INFO L290 TraceCheckUtils]: 9: Hoare triple {507#(<= ~counter~0 0)} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {507#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:26,476 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {507#(<= ~counter~0 0)} {507#(<= ~counter~0 0)} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {507#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:26,477 INFO L290 TraceCheckUtils]: 11: Hoare triple {507#(<= ~counter~0 0)} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {507#(<= ~counter~0 0)} is VALID [2022-04-07 20:54:26,477 INFO L290 TraceCheckUtils]: 12: Hoare triple {507#(<= ~counter~0 0)} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {541#(<= ~counter~0 1)} is VALID [2022-04-07 20:54:26,478 INFO L290 TraceCheckUtils]: 13: Hoare triple {541#(<= ~counter~0 1)} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {541#(<= ~counter~0 1)} is VALID [2022-04-07 20:54:26,478 INFO L272 TraceCheckUtils]: 14: Hoare triple {541#(<= ~counter~0 1)} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {541#(<= ~counter~0 1)} is VALID [2022-04-07 20:54:26,479 INFO L290 TraceCheckUtils]: 15: Hoare triple {541#(<= ~counter~0 1)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {541#(<= ~counter~0 1)} is VALID [2022-04-07 20:54:26,479 INFO L290 TraceCheckUtils]: 16: Hoare triple {541#(<= ~counter~0 1)} [86] L10-->L10-2: Formula: (not (= 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[] {541#(<= ~counter~0 1)} is VALID [2022-04-07 20:54:26,479 INFO L290 TraceCheckUtils]: 17: Hoare triple {541#(<= ~counter~0 1)} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {541#(<= ~counter~0 1)} is VALID [2022-04-07 20:54:26,480 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {541#(<= ~counter~0 1)} {541#(<= ~counter~0 1)} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {541#(<= ~counter~0 1)} is VALID [2022-04-07 20:54:26,480 INFO L290 TraceCheckUtils]: 19: Hoare triple {541#(<= ~counter~0 1)} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {541#(<= ~counter~0 1)} is VALID [2022-04-07 20:54:26,481 INFO L290 TraceCheckUtils]: 20: Hoare triple {541#(<= ~counter~0 1)} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {566#(<= |main_#t~post5| 1)} is VALID [2022-04-07 20:54:26,481 INFO L290 TraceCheckUtils]: 21: Hoare triple {566#(<= |main_#t~post5| 1)} [78] L28-1-->L28-4: Formula: (not (< |v_main_#t~post5_3| 5)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {500#false} is VALID [2022-04-07 20:54:26,481 INFO L272 TraceCheckUtils]: 22: Hoare triple {500#false} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {500#false} is VALID [2022-04-07 20:54:26,481 INFO L290 TraceCheckUtils]: 23: Hoare triple {500#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {500#false} is VALID [2022-04-07 20:54:26,481 INFO L290 TraceCheckUtils]: 24: Hoare triple {500#false} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {500#false} is VALID [2022-04-07 20:54:26,482 INFO L290 TraceCheckUtils]: 25: Hoare triple {500#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {500#false} is VALID [2022-04-07 20:54:26,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 20:54:26,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 20:54:26,632 INFO L290 TraceCheckUtils]: 25: Hoare triple {500#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {500#false} is VALID [2022-04-07 20:54:26,632 INFO L290 TraceCheckUtils]: 24: Hoare triple {500#false} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {500#false} is VALID [2022-04-07 20:54:26,632 INFO L290 TraceCheckUtils]: 23: Hoare triple {500#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {500#false} is VALID [2022-04-07 20:54:26,633 INFO L272 TraceCheckUtils]: 22: Hoare triple {500#false} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {500#false} is VALID [2022-04-07 20:54:26,633 INFO L290 TraceCheckUtils]: 21: Hoare triple {594#(< |main_#t~post5| 5)} [78] L28-1-->L28-4: Formula: (not (< |v_main_#t~post5_3| 5)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {500#false} is VALID [2022-04-07 20:54:26,634 INFO L290 TraceCheckUtils]: 20: Hoare triple {598#(< ~counter~0 5)} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {594#(< |main_#t~post5| 5)} is VALID [2022-04-07 20:54:26,634 INFO L290 TraceCheckUtils]: 19: Hoare triple {598#(< ~counter~0 5)} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {598#(< ~counter~0 5)} is VALID [2022-04-07 20:54:26,634 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {499#true} {598#(< ~counter~0 5)} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {598#(< ~counter~0 5)} is VALID [2022-04-07 20:54:26,634 INFO L290 TraceCheckUtils]: 17: Hoare triple {499#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {499#true} is VALID [2022-04-07 20:54:26,635 INFO L290 TraceCheckUtils]: 16: Hoare triple {499#true} [86] L10-->L10-2: Formula: (not (= 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[] {499#true} is VALID [2022-04-07 20:54:26,635 INFO L290 TraceCheckUtils]: 15: Hoare triple {499#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {499#true} is VALID [2022-04-07 20:54:26,635 INFO L272 TraceCheckUtils]: 14: Hoare triple {598#(< ~counter~0 5)} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {499#true} is VALID [2022-04-07 20:54:26,635 INFO L290 TraceCheckUtils]: 13: Hoare triple {598#(< ~counter~0 5)} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {598#(< ~counter~0 5)} is VALID [2022-04-07 20:54:26,636 INFO L290 TraceCheckUtils]: 12: Hoare triple {623#(< ~counter~0 4)} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {598#(< ~counter~0 5)} is VALID [2022-04-07 20:54:26,636 INFO L290 TraceCheckUtils]: 11: Hoare triple {623#(< ~counter~0 4)} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {623#(< ~counter~0 4)} is VALID [2022-04-07 20:54:26,638 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {499#true} {623#(< ~counter~0 4)} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {623#(< ~counter~0 4)} is VALID [2022-04-07 20:54:26,638 INFO L290 TraceCheckUtils]: 9: Hoare triple {499#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {499#true} is VALID [2022-04-07 20:54:26,638 INFO L290 TraceCheckUtils]: 8: Hoare triple {499#true} [76] L7-->L7-2: 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[] {499#true} is VALID [2022-04-07 20:54:26,638 INFO L290 TraceCheckUtils]: 7: Hoare triple {499#true} [72] assume_abort_if_notENTRY-->L7: 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] {499#true} is VALID [2022-04-07 20:54:26,638 INFO L272 TraceCheckUtils]: 6: Hoare triple {623#(< ~counter~0 4)} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {499#true} is VALID [2022-04-07 20:54:26,639 INFO L290 TraceCheckUtils]: 5: Hoare triple {623#(< ~counter~0 4)} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {623#(< ~counter~0 4)} is VALID [2022-04-07 20:54:26,639 INFO L272 TraceCheckUtils]: 4: Hoare triple {623#(< ~counter~0 4)} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {623#(< ~counter~0 4)} is VALID [2022-04-07 20:54:26,640 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {623#(< ~counter~0 4)} {499#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {623#(< ~counter~0 4)} is VALID [2022-04-07 20:54:26,640 INFO L290 TraceCheckUtils]: 2: Hoare triple {623#(< ~counter~0 4)} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {623#(< ~counter~0 4)} is VALID [2022-04-07 20:54:26,641 INFO L290 TraceCheckUtils]: 1: Hoare triple {499#true} [66] 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| 2) 9) (= (select |v_#length_1| 3) 12) (= (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] {623#(< ~counter~0 4)} is VALID [2022-04-07 20:54:26,641 INFO L272 TraceCheckUtils]: 0: Hoare triple {499#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {499#true} is VALID [2022-04-07 20:54:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 20:54:26,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 20:54:26,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097704368] [2022-04-07 20:54:26,641 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 20:54:26,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937247416] [2022-04-07 20:54:26,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937247416] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-07 20:54:26,642 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-07 20:54:26,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-04-07 20:54:26,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278949767] [2022-04-07 20:54:26,642 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-07 20:54:26,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 26 [2022-04-07 20:54:26,643 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 20:54:26,643 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-07 20:54:26,674 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:26,674 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-07 20:54:26,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 20:54:26,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-07 20:54:26,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-04-07 20:54:26,675 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-07 20:54:26,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:26,839 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2022-04-07 20:54:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-07 20:54:26,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 26 [2022-04-07 20:54:26,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 20:54:26,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-07 20:54:26,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 68 transitions. [2022-04-07 20:54:26,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-07 20:54:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 68 transitions. [2022-04-07 20:54:26,843 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 10 states and 68 transitions. [2022-04-07 20:54:26,893 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:26,895 INFO L225 Difference]: With dead ends: 58 [2022-04-07 20:54:26,895 INFO L226 Difference]: Without dead ends: 58 [2022-04-07 20:54:26,895 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-04-07 20:54:26,896 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 38 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 20:54:26,896 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 127 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 20:54:26,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-04-07 20:54:26,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2022-04-07 20:54:26,899 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 20:54:26,899 INFO L82 GeneralOperation]: Start isEquivalent. First operand 58 states. Second operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-07 20:54:26,899 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-07 20:54:26,900 INFO L87 Difference]: Start difference. First operand 58 states. Second operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-07 20:54:26,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:26,902 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2022-04-07 20:54:26,902 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-04-07 20:54:26,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:26,902 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:26,902 INFO L74 IsIncluded]: Start isIncluded. First operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand 58 states. [2022-04-07 20:54:26,903 INFO L87 Difference]: Start difference. First operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand 58 states. [2022-04-07 20:54:26,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:26,904 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2022-04-07 20:54:26,904 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-04-07 20:54:26,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:26,905 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:26,905 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 20:54:26,905 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 20:54:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-07 20:54:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2022-04-07 20:54:26,906 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 26 [2022-04-07 20:54:26,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 20:54:26,907 INFO L478 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2022-04-07 20:54:26,907 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-07 20:54:26,907 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2022-04-07 20:54:26,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-07 20:54:26,907 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 20:54:26,907 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] [2022-04-07 20:54:26,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-07 20:54:27,116 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 [2022-04-07 20:54:27,119 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 20:54:27,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 20:54:27,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1222696968, now seen corresponding path program 1 times [2022-04-07 20:54:27,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 20:54:27,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102393689] [2022-04-07 20:54:27,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:27,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 20:54:27,135 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 20:54:27,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626232830] [2022-04-07 20:54:27,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:27,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 20:54:27,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 20:54:27,136 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) [2022-04-07 20:54:27,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-07 20:54:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:27,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-07 20:54:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:27,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 20:54:27,313 INFO L272 TraceCheckUtils]: 0: Hoare triple {896#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:27,314 INFO L290 TraceCheckUtils]: 1: Hoare triple {896#true} [66] 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| 2) 9) (= (select |v_#length_1| 3) 12) (= (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] {896#true} is VALID [2022-04-07 20:54:27,314 INFO L290 TraceCheckUtils]: 2: Hoare triple {896#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:27,314 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {896#true} {896#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:27,314 INFO L272 TraceCheckUtils]: 4: Hoare triple {896#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:27,314 INFO L290 TraceCheckUtils]: 5: Hoare triple {896#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {896#true} is VALID [2022-04-07 20:54:27,314 INFO L272 TraceCheckUtils]: 6: Hoare triple {896#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {896#true} is VALID [2022-04-07 20:54:27,314 INFO L290 TraceCheckUtils]: 7: Hoare triple {896#true} [72] assume_abort_if_notENTRY-->L7: 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] {896#true} is VALID [2022-04-07 20:54:27,314 INFO L290 TraceCheckUtils]: 8: Hoare triple {896#true} [76] L7-->L7-2: 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[] {896#true} is VALID [2022-04-07 20:54:27,315 INFO L290 TraceCheckUtils]: 9: Hoare triple {896#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:27,315 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {896#true} {896#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {896#true} is VALID [2022-04-07 20:54:27,316 INFO L290 TraceCheckUtils]: 11: Hoare triple {896#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {934#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:27,316 INFO L290 TraceCheckUtils]: 12: Hoare triple {934#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {934#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:27,316 INFO L290 TraceCheckUtils]: 13: Hoare triple {934#(and (= main_~x~0 0) (= main_~y~0 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {934#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:27,316 INFO L272 TraceCheckUtils]: 14: Hoare triple {934#(and (= main_~x~0 0) (= main_~y~0 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {896#true} is VALID [2022-04-07 20:54:27,317 INFO L290 TraceCheckUtils]: 15: Hoare triple {896#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {896#true} is VALID [2022-04-07 20:54:27,317 INFO L290 TraceCheckUtils]: 16: Hoare triple {896#true} [86] L10-->L10-2: Formula: (not (= 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[] {896#true} is VALID [2022-04-07 20:54:27,317 INFO L290 TraceCheckUtils]: 17: Hoare triple {896#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:27,332 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {896#true} {934#(and (= main_~x~0 0) (= main_~y~0 0))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {934#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:27,332 INFO L290 TraceCheckUtils]: 19: Hoare triple {934#(and (= main_~x~0 0) (= main_~y~0 0))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {959#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} is VALID [2022-04-07 20:54:27,333 INFO L290 TraceCheckUtils]: 20: Hoare triple {959#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {959#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} is VALID [2022-04-07 20:54:27,333 INFO L290 TraceCheckUtils]: 21: Hoare triple {959#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {959#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} is VALID [2022-04-07 20:54:27,334 INFO L272 TraceCheckUtils]: 22: Hoare triple {959#(and (= (+ main_~x~0 (* (- 1) main_~y~0 main_~y~0 main_~y~0 main_~y~0)) 0) (= (+ (- 1) main_~y~0) 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {969#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 20:54:27,334 INFO L290 TraceCheckUtils]: 23: Hoare triple {969#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {973#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 20:54:27,334 INFO L290 TraceCheckUtils]: 24: Hoare triple {973#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {897#false} is VALID [2022-04-07 20:54:27,334 INFO L290 TraceCheckUtils]: 25: Hoare triple {897#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {897#false} is VALID [2022-04-07 20:54:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 20:54:27,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 20:54:27,486 INFO L290 TraceCheckUtils]: 25: Hoare triple {897#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {897#false} is VALID [2022-04-07 20:54:27,487 INFO L290 TraceCheckUtils]: 24: Hoare triple {973#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {897#false} is VALID [2022-04-07 20:54:27,487 INFO L290 TraceCheckUtils]: 23: Hoare triple {969#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {973#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 20:54:27,488 INFO L272 TraceCheckUtils]: 22: Hoare triple {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {969#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 20:54:27,488 INFO L290 TraceCheckUtils]: 21: Hoare triple {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-07 20:54:27,489 INFO L290 TraceCheckUtils]: 20: Hoare triple {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-07 20:54:29,413 INFO L290 TraceCheckUtils]: 19: Hoare triple {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-07 20:54:29,414 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {896#true} {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-07 20:54:29,414 INFO L290 TraceCheckUtils]: 17: Hoare triple {896#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:29,414 INFO L290 TraceCheckUtils]: 16: Hoare triple {896#true} [86] L10-->L10-2: Formula: (not (= 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[] {896#true} is VALID [2022-04-07 20:54:29,414 INFO L290 TraceCheckUtils]: 15: Hoare triple {896#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {896#true} is VALID [2022-04-07 20:54:29,414 INFO L272 TraceCheckUtils]: 14: Hoare triple {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {896#true} is VALID [2022-04-07 20:54:29,418 INFO L290 TraceCheckUtils]: 13: Hoare triple {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-07 20:54:29,419 INFO L290 TraceCheckUtils]: 12: Hoare triple {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-07 20:54:29,419 INFO L290 TraceCheckUtils]: 11: Hoare triple {896#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {989#(= (+ main_~y~0 (* 30 main_~x~0)) (+ (* (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) 15) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* (* main_~y~0 main_~y~0 main_~y~0) 10)))} is VALID [2022-04-07 20:54:29,419 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {896#true} {896#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {896#true} is VALID [2022-04-07 20:54:29,420 INFO L290 TraceCheckUtils]: 9: Hoare triple {896#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:29,420 INFO L290 TraceCheckUtils]: 8: Hoare triple {896#true} [76] L7-->L7-2: 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[] {896#true} is VALID [2022-04-07 20:54:29,420 INFO L290 TraceCheckUtils]: 7: Hoare triple {896#true} [72] assume_abort_if_notENTRY-->L7: 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] {896#true} is VALID [2022-04-07 20:54:29,420 INFO L272 TraceCheckUtils]: 6: Hoare triple {896#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {896#true} is VALID [2022-04-07 20:54:29,420 INFO L290 TraceCheckUtils]: 5: Hoare triple {896#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {896#true} is VALID [2022-04-07 20:54:29,420 INFO L272 TraceCheckUtils]: 4: Hoare triple {896#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:29,420 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {896#true} {896#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:29,420 INFO L290 TraceCheckUtils]: 2: Hoare triple {896#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:29,420 INFO L290 TraceCheckUtils]: 1: Hoare triple {896#true} [66] 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| 2) 9) (= (select |v_#length_1| 3) 12) (= (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] {896#true} is VALID [2022-04-07 20:54:29,420 INFO L272 TraceCheckUtils]: 0: Hoare triple {896#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {896#true} is VALID [2022-04-07 20:54:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-07 20:54:29,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 20:54:29,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102393689] [2022-04-07 20:54:29,421 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 20:54:29,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626232830] [2022-04-07 20:54:29,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626232830] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-07 20:54:29,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-07 20:54:29,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-04-07 20:54:29,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105926072] [2022-04-07 20:54:29,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 20:54:29,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-04-07 20:54:29,422 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 20:54:29,422 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 20:54:29,803 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:29,803 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 20:54:29,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 20:54:29,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 20:54:29,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-07 20:54:29,804 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 20:54:29,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:29,893 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2022-04-07 20:54:29,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 20:54:29,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-04-07 20:54:29,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 20:54:29,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 20:54:29,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-04-07 20:54:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 20:54:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-04-07 20:54:29,895 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 31 transitions. [2022-04-07 20:54:30,927 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:30,928 INFO L225 Difference]: With dead ends: 66 [2022-04-07 20:54:30,928 INFO L226 Difference]: Without dead ends: 60 [2022-04-07 20:54:30,928 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-07 20:54:30,929 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 20:54:30,929 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 73 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 20:54:30,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-04-07 20:54:30,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2022-04-07 20:54:30,931 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 20:54:30,932 INFO L82 GeneralOperation]: Start isEquivalent. First operand 60 states. Second operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-07 20:54:30,932 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-07 20:54:30,932 INFO L87 Difference]: Start difference. First operand 60 states. Second operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-07 20:54:30,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:30,934 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2022-04-07 20:54:30,934 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2022-04-07 20:54:30,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:30,934 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:30,934 INFO L74 IsIncluded]: Start isIncluded. First operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) Second operand 60 states. [2022-04-07 20:54:30,935 INFO L87 Difference]: Start difference. First operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) Second operand 60 states. [2022-04-07 20:54:30,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:30,936 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2022-04-07 20:54:30,936 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2022-04-07 20:54:30,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:30,937 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:30,937 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 20:54:30,937 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 20:54:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-07 20:54:30,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2022-04-07 20:54:30,944 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 26 [2022-04-07 20:54:30,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 20:54:30,944 INFO L478 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2022-04-07 20:54:30,946 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-07 20:54:30,946 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-04-07 20:54:30,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-04-07 20:54:30,947 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 20:54:30,947 INFO L499 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 20:54:30,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-04-07 20:54:31,147 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 [2022-04-07 20:54:31,147 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 20:54:31,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 20:54:31,148 INFO L85 PathProgramCache]: Analyzing trace with hash 96926796, now seen corresponding path program 1 times [2022-04-07 20:54:31,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 20:54:31,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300852279] [2022-04-07 20:54:31,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:31,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 20:54:31,159 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 20:54:31,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076606569] [2022-04-07 20:54:31,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:31,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 20:54:31,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 20:54:31,163 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) [2022-04-07 20:54:31,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-07 20:54:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:31,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2022-04-07 20:54:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:31,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 20:54:31,505 INFO L272 TraceCheckUtils]: 0: Hoare triple {1300#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1300#true} is VALID [2022-04-07 20:54:31,505 INFO L290 TraceCheckUtils]: 1: Hoare triple {1300#true} [66] 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| 2) 9) (= (select |v_#length_1| 3) 12) (= (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] {1300#true} is VALID [2022-04-07 20:54:31,505 INFO L290 TraceCheckUtils]: 2: Hoare triple {1300#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1300#true} is VALID [2022-04-07 20:54:31,505 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1300#true} {1300#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1300#true} is VALID [2022-04-07 20:54:31,506 INFO L272 TraceCheckUtils]: 4: Hoare triple {1300#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1300#true} is VALID [2022-04-07 20:54:31,506 INFO L290 TraceCheckUtils]: 5: Hoare triple {1300#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {1300#true} is VALID [2022-04-07 20:54:31,506 INFO L272 TraceCheckUtils]: 6: Hoare triple {1300#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1300#true} is VALID [2022-04-07 20:54:31,506 INFO L290 TraceCheckUtils]: 7: Hoare triple {1300#true} [72] assume_abort_if_notENTRY-->L7: 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] {1300#true} is VALID [2022-04-07 20:54:31,506 INFO L290 TraceCheckUtils]: 8: Hoare triple {1300#true} [76] L7-->L7-2: 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[] {1300#true} is VALID [2022-04-07 20:54:31,506 INFO L290 TraceCheckUtils]: 9: Hoare triple {1300#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1300#true} is VALID [2022-04-07 20:54:31,506 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1300#true} {1300#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1300#true} is VALID [2022-04-07 20:54:31,507 INFO L290 TraceCheckUtils]: 11: Hoare triple {1300#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {1338#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:31,507 INFO L290 TraceCheckUtils]: 12: Hoare triple {1338#(and (= main_~c~0 0) (= main_~y~0 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1338#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:31,507 INFO L290 TraceCheckUtils]: 13: Hoare triple {1338#(and (= main_~c~0 0) (= main_~y~0 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1338#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:31,507 INFO L272 TraceCheckUtils]: 14: Hoare triple {1338#(and (= main_~c~0 0) (= main_~y~0 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1300#true} is VALID [2022-04-07 20:54:31,507 INFO L290 TraceCheckUtils]: 15: Hoare triple {1300#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1300#true} is VALID [2022-04-07 20:54:31,508 INFO L290 TraceCheckUtils]: 16: Hoare triple {1300#true} [86] L10-->L10-2: Formula: (not (= 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[] {1300#true} is VALID [2022-04-07 20:54:31,508 INFO L290 TraceCheckUtils]: 17: Hoare triple {1300#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1300#true} is VALID [2022-04-07 20:54:31,510 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1300#true} {1338#(and (= main_~c~0 0) (= main_~y~0 0))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1338#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:31,510 INFO L290 TraceCheckUtils]: 19: Hoare triple {1338#(and (= main_~c~0 0) (= main_~y~0 0))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {1363#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-07 20:54:31,510 INFO L290 TraceCheckUtils]: 20: Hoare triple {1363#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1363#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-07 20:54:31,513 INFO L290 TraceCheckUtils]: 21: Hoare triple {1363#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1363#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-07 20:54:31,513 INFO L272 TraceCheckUtils]: 22: Hoare triple {1363#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1300#true} is VALID [2022-04-07 20:54:31,513 INFO L290 TraceCheckUtils]: 23: Hoare triple {1300#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1300#true} is VALID [2022-04-07 20:54:31,513 INFO L290 TraceCheckUtils]: 24: Hoare triple {1300#true} [86] L10-->L10-2: Formula: (not (= 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[] {1300#true} is VALID [2022-04-07 20:54:31,513 INFO L290 TraceCheckUtils]: 25: Hoare triple {1300#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1300#true} is VALID [2022-04-07 20:54:31,514 INFO L284 TraceCheckUtils]: 26: Hoare quadruple {1300#true} {1363#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1363#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-07 20:54:31,514 INFO L290 TraceCheckUtils]: 27: Hoare triple {1363#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [87] L29-1-->L28-4: Formula: (not (< v_main_~c~0_3 v_main_~k~0_6)) InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_6} OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[] {1388#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} is VALID [2022-04-07 20:54:31,514 INFO L272 TraceCheckUtils]: 28: Hoare triple {1388#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1300#true} is VALID [2022-04-07 20:54:31,515 INFO L290 TraceCheckUtils]: 29: Hoare triple {1300#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1300#true} is VALID [2022-04-07 20:54:31,515 INFO L290 TraceCheckUtils]: 30: Hoare triple {1300#true} [86] L10-->L10-2: Formula: (not (= 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[] {1300#true} is VALID [2022-04-07 20:54:31,515 INFO L290 TraceCheckUtils]: 31: Hoare triple {1300#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1300#true} is VALID [2022-04-07 20:54:31,515 INFO L284 TraceCheckUtils]: 32: Hoare quadruple {1300#true} {1388#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} [97] __VERIFIER_assertEXIT-->L39: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1388#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} is VALID [2022-04-07 20:54:31,516 INFO L272 TraceCheckUtils]: 33: Hoare triple {1388#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} [81] L39-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_3| (ite (= (* v_main_~y~0_10 v_main_~y~0_10) (* v_main_~y~0_10 v_main_~k~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_10, main_~k~0=v_main_~k~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0, main_~y~0] {1407#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 20:54:31,516 INFO L290 TraceCheckUtils]: 34: Hoare triple {1407#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1411#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 20:54:31,519 INFO L290 TraceCheckUtils]: 35: Hoare triple {1411#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {1301#false} is VALID [2022-04-07 20:54:31,520 INFO L290 TraceCheckUtils]: 36: Hoare triple {1301#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1301#false} is VALID [2022-04-07 20:54:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-04-07 20:54:31,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 20:54:31,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 20:54:31,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300852279] [2022-04-07 20:54:31,803 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 20:54:31,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076606569] [2022-04-07 20:54:31,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076606569] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 20:54:31,803 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-04-07 20:54:31,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2022-04-07 20:54:31,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392908692] [2022-04-07 20:54:31,803 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-04-07 20:54:31,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2022-04-07 20:54:31,804 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 20:54:31,804 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-07 20:54:31,825 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:31,825 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-07 20:54:31,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 20:54:31,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-07 20:54:31,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-04-07 20:54:31,826 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-07 20:54:32,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:32,000 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2022-04-07 20:54:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-07 20:54:32,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2022-04-07 20:54:32,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 20:54:32,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-07 20:54:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 43 transitions. [2022-04-07 20:54:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-07 20:54:32,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 43 transitions. [2022-04-07 20:54:32,003 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 43 transitions. [2022-04-07 20:54:32,047 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:32,047 INFO L225 Difference]: With dead ends: 57 [2022-04-07 20:54:32,048 INFO L226 Difference]: Without dead ends: 53 [2022-04-07 20:54:32,048 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-04-07 20:54:32,048 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 20:54:32,048 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 141 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 20:54:32,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-04-07 20:54:32,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-04-07 20:54:32,051 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 20:54:32,051 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-07 20:54:32,051 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-07 20:54:32,051 INFO L87 Difference]: Start difference. First operand 53 states. Second operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-07 20:54:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:32,053 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2022-04-07 20:54:32,053 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-04-07 20:54:32,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:32,053 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:32,053 INFO L74 IsIncluded]: Start isIncluded. First operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand 53 states. [2022-04-07 20:54:32,053 INFO L87 Difference]: Start difference. First operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand 53 states. [2022-04-07 20:54:32,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:32,054 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2022-04-07 20:54:32,055 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-04-07 20:54:32,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:32,055 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:32,055 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 20:54:32,055 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 20:54:32,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-07 20:54:32,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-04-07 20:54:32,056 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 37 [2022-04-07 20:54:32,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 20:54:32,056 INFO L478 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-04-07 20:54:32,057 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-07 20:54:32,057 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-04-07 20:54:32,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-04-07 20:54:32,057 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 20:54:32,057 INFO L499 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 20:54:32,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-04-07 20:54:32,273 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 [2022-04-07 20:54:32,274 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 20:54:32,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 20:54:32,274 INFO L85 PathProgramCache]: Analyzing trace with hash -678596118, now seen corresponding path program 2 times [2022-04-07 20:54:32,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 20:54:32,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620694714] [2022-04-07 20:54:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:32,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 20:54:32,283 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 20:54:32,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044101706] [2022-04-07 20:54:32,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-07 20:54:32,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 20:54:32,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 20:54:32,284 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) [2022-04-07 20:54:32,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-07 20:54:32,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-07 20:54:32,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-07 20:54:32,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-07 20:54:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 20:54:32,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 20:54:32,636 INFO L272 TraceCheckUtils]: 0: Hoare triple {1697#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1697#true} is VALID [2022-04-07 20:54:32,636 INFO L290 TraceCheckUtils]: 1: Hoare triple {1697#true} [66] 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| 2) 9) (= (select |v_#length_1| 3) 12) (= (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] {1697#true} is VALID [2022-04-07 20:54:32,636 INFO L290 TraceCheckUtils]: 2: Hoare triple {1697#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1697#true} is VALID [2022-04-07 20:54:32,636 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1697#true} {1697#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1697#true} is VALID [2022-04-07 20:54:32,636 INFO L272 TraceCheckUtils]: 4: Hoare triple {1697#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1697#true} is VALID [2022-04-07 20:54:32,636 INFO L290 TraceCheckUtils]: 5: Hoare triple {1697#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {1697#true} is VALID [2022-04-07 20:54:32,636 INFO L272 TraceCheckUtils]: 6: Hoare triple {1697#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1697#true} is VALID [2022-04-07 20:54:32,637 INFO L290 TraceCheckUtils]: 7: Hoare triple {1697#true} [72] assume_abort_if_notENTRY-->L7: 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] {1697#true} is VALID [2022-04-07 20:54:32,637 INFO L290 TraceCheckUtils]: 8: Hoare triple {1697#true} [76] L7-->L7-2: 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[] {1697#true} is VALID [2022-04-07 20:54:32,637 INFO L290 TraceCheckUtils]: 9: Hoare triple {1697#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1697#true} is VALID [2022-04-07 20:54:32,637 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1697#true} {1697#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {1697#true} is VALID [2022-04-07 20:54:32,637 INFO L290 TraceCheckUtils]: 11: Hoare triple {1697#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {1735#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:32,637 INFO L290 TraceCheckUtils]: 12: Hoare triple {1735#(and (= main_~c~0 0) (= main_~y~0 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1735#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:32,638 INFO L290 TraceCheckUtils]: 13: Hoare triple {1735#(and (= main_~c~0 0) (= main_~y~0 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1735#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:32,638 INFO L272 TraceCheckUtils]: 14: Hoare triple {1735#(and (= main_~c~0 0) (= main_~y~0 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1697#true} is VALID [2022-04-07 20:54:32,638 INFO L290 TraceCheckUtils]: 15: Hoare triple {1697#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1697#true} is VALID [2022-04-07 20:54:32,638 INFO L290 TraceCheckUtils]: 16: Hoare triple {1697#true} [86] L10-->L10-2: Formula: (not (= 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[] {1697#true} is VALID [2022-04-07 20:54:32,638 INFO L290 TraceCheckUtils]: 17: Hoare triple {1697#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1697#true} is VALID [2022-04-07 20:54:32,638 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1697#true} {1735#(and (= main_~c~0 0) (= main_~y~0 0))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1735#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-07 20:54:32,639 INFO L290 TraceCheckUtils]: 19: Hoare triple {1735#(and (= main_~c~0 0) (= main_~y~0 0))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {1760#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} is VALID [2022-04-07 20:54:32,639 INFO L290 TraceCheckUtils]: 20: Hoare triple {1760#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1760#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} is VALID [2022-04-07 20:54:32,640 INFO L290 TraceCheckUtils]: 21: Hoare triple {1760#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1760#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} is VALID [2022-04-07 20:54:32,640 INFO L272 TraceCheckUtils]: 22: Hoare triple {1760#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1697#true} is VALID [2022-04-07 20:54:32,640 INFO L290 TraceCheckUtils]: 23: Hoare triple {1697#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1697#true} is VALID [2022-04-07 20:54:32,640 INFO L290 TraceCheckUtils]: 24: Hoare triple {1697#true} [86] L10-->L10-2: Formula: (not (= 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[] {1697#true} is VALID [2022-04-07 20:54:32,640 INFO L290 TraceCheckUtils]: 25: Hoare triple {1697#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1697#true} is VALID [2022-04-07 20:54:32,641 INFO L284 TraceCheckUtils]: 26: Hoare quadruple {1697#true} {1760#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1760#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} is VALID [2022-04-07 20:54:32,641 INFO L290 TraceCheckUtils]: 27: Hoare triple {1760#(and (= (+ (- 1) main_~y~0) 0) (= (+ (- 1) main_~c~0) 0))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= (+ v_main_~x~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_5) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {1785#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} is VALID [2022-04-07 20:54:32,642 INFO L290 TraceCheckUtils]: 28: Hoare triple {1785#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1785#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} is VALID [2022-04-07 20:54:32,642 INFO L290 TraceCheckUtils]: 29: Hoare triple {1785#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 5) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1785#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} is VALID [2022-04-07 20:54:32,642 INFO L272 TraceCheckUtils]: 30: Hoare triple {1785#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1697#true} is VALID [2022-04-07 20:54:32,642 INFO L290 TraceCheckUtils]: 31: Hoare triple {1697#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1697#true} is VALID [2022-04-07 20:54:32,642 INFO L290 TraceCheckUtils]: 32: Hoare triple {1697#true} [86] L10-->L10-2: Formula: (not (= 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[] {1697#true} is VALID [2022-04-07 20:54:32,642 INFO L290 TraceCheckUtils]: 33: Hoare triple {1697#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1697#true} is VALID [2022-04-07 20:54:32,643 INFO L284 TraceCheckUtils]: 34: Hoare quadruple {1697#true} {1785#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~y~0_8) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 15)))) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8)) (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 10))) (* v_main_~x~0_7 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1785#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} is VALID [2022-04-07 20:54:32,643 INFO L290 TraceCheckUtils]: 35: Hoare triple {1785#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~c~0 2))} [87] L29-1-->L28-4: Formula: (not (< v_main_~c~0_3 v_main_~k~0_6)) InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_6} OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[] {1810#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~k~0 2))} is VALID [2022-04-07 20:54:32,643 INFO L272 TraceCheckUtils]: 36: Hoare triple {1810#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~k~0 2))} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1697#true} is VALID [2022-04-07 20:54:32,643 INFO L290 TraceCheckUtils]: 37: Hoare triple {1697#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1697#true} is VALID [2022-04-07 20:54:32,644 INFO L290 TraceCheckUtils]: 38: Hoare triple {1697#true} [86] L10-->L10-2: Formula: (not (= 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[] {1697#true} is VALID [2022-04-07 20:54:32,644 INFO L290 TraceCheckUtils]: 39: Hoare triple {1697#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1697#true} is VALID [2022-04-07 20:54:32,644 INFO L284 TraceCheckUtils]: 40: Hoare quadruple {1697#true} {1810#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~k~0 2))} [97] __VERIFIER_assertEXIT-->L39: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 10))) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (* (- 1) v_main_~y~0_9) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 15))) v_main_~y~0_9) (* v_main_~x~0_8 (- 30))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1810#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~k~0 2))} is VALID [2022-04-07 20:54:32,644 INFO L272 TraceCheckUtils]: 41: Hoare triple {1810#(and (< 1 main_~k~0) (= (+ (- 2) main_~y~0) 0) (<= main_~k~0 2))} [81] L39-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_3| (ite (= (* v_main_~y~0_10 v_main_~y~0_10) (* v_main_~y~0_10 v_main_~k~0_9)) 1 0)) InVars {main_~y~0=v_main_~y~0_10, main_~k~0=v_main_~k~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0, main_~y~0] {1829#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 20:54:32,645 INFO L290 TraceCheckUtils]: 42: Hoare triple {1829#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1833#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-07 20:54:32,645 INFO L290 TraceCheckUtils]: 43: Hoare triple {1833#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {1698#false} is VALID [2022-04-07 20:54:32,646 INFO L290 TraceCheckUtils]: 44: Hoare triple {1698#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1698#false} is VALID [2022-04-07 20:54:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-07 20:54:32,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 20:54:32,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 20:54:32,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620694714] [2022-04-07 20:54:32,923 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-07 20:54:32,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044101706] [2022-04-07 20:54:32,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044101706] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 20:54:32,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-04-07 20:54:32,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2022-04-07 20:54:32,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239373325] [2022-04-07 20:54:32,923 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-04-07 20:54:32,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 45 [2022-04-07 20:54:32,924 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 20:54:32,924 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-07 20:54:32,948 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:32,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-07 20:54:32,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 20:54:32,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-07 20:54:32,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-04-07 20:54:32,949 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-07 20:54:33,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:33,184 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2022-04-07 20:54:33,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-07 20:54:33,184 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 45 [2022-04-07 20:54:33,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 20:54:33,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-07 20:54:33,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 48 transitions. [2022-04-07 20:54:33,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-07 20:54:33,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 48 transitions. [2022-04-07 20:54:33,186 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 48 transitions. [2022-04-07 20:54:33,217 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 20:54:33,217 INFO L225 Difference]: With dead ends: 56 [2022-04-07 20:54:33,218 INFO L226 Difference]: Without dead ends: 52 [2022-04-07 20:54:33,218 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-04-07 20:54:33,218 INFO L913 BasicCegarLoop]: 35 mSDtfsCounter, 2 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 20:54:33,218 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 179 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 20:54:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-04-07 20:54:33,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-04-07 20:54:33,220 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 20:54:33,221 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-07 20:54:33,221 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-07 20:54:33,221 INFO L87 Difference]: Start difference. First operand 52 states. Second operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-07 20:54:33,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:33,222 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2022-04-07 20:54:33,222 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2022-04-07 20:54:33,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:33,222 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:33,223 INFO L74 IsIncluded]: Start isIncluded. First operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 52 states. [2022-04-07 20:54:33,223 INFO L87 Difference]: Start difference. First operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 52 states. [2022-04-07 20:54:33,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 20:54:33,224 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2022-04-07 20:54:33,224 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2022-04-07 20:54:33,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 20:54:33,224 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 20:54:33,224 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 20:54:33,224 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 20:54:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-07 20:54:33,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2022-04-07 20:54:33,225 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 45 [2022-04-07 20:54:33,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 20:54:33,225 INFO L478 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2022-04-07 20:54:33,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-07 20:54:33,225 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2022-04-07 20:54:33,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-04-07 20:54:33,226 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 20:54:33,226 INFO L499 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 20:54:33,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-07 20:54:33,430 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 [2022-04-07 20:54:33,432 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 20:54:33,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 20:54:33,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1280010632, now seen corresponding path program 3 times [2022-04-07 20:54:33,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 20:54:33,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275682426] [2022-04-07 20:54:33,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 20:54:33,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 20:54:33,444 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-07 20:54:33,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1531179581] [2022-04-07 20:54:33,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-07 20:54:33,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 20:54:33,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 20:54:33,445 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) [2022-04-07 20:54:33,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process