/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/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/prod4br-ll_unwindbound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-28 01:15:16,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-28 01:15:16,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-28 01:15:16,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-28 01:15:16,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-28 01:15:16,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-28 01:15:16,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-28 01:15:16,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-28 01:15:16,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-28 01:15:16,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-28 01:15:16,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-28 01:15:16,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-28 01:15:16,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-28 01:15:16,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-28 01:15:16,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-28 01:15:16,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-28 01:15:16,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-28 01:15:16,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-28 01:15:16,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-28 01:15:16,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-28 01:15:16,749 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-28 01:15:16,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-28 01:15:16,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-28 01:15:16,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-28 01:15:16,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-28 01:15:16,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-28 01:15:16,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-28 01:15:16,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-28 01:15:16,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-28 01:15:16,758 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-28 01:15:16,791 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-28 01:15:16,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-28 01:15:16,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-28 01:15:16,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-28 01:15:16,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-28 01:15:16,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-28 01:15:16,793 INFO L138 SettingsManager]: * Use SBE=true [2022-04-28 01:15:16,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-28 01:15:16,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-28 01:15:16,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-28 01:15:16,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-28 01:15:16,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-28 01:15:16,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-28 01:15:16,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-28 01:15:16,794 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-28 01:15:16,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-28 01:15:16,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-28 01:15:16,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-28 01:15:16,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-28 01:15:16,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 01:15:16,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-28 01:15:16,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-28 01:15:16,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-28 01:15:16,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-28 01:15:16,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-28 01:15:16,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-28 01:15:16,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-28 01:15:16,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-28 01:15:16,796 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-28 01:15:16,796 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-28 01:15:16,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-28 01:15:16,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-28 01:15:16,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-28 01:15:16,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-28 01:15:16,968 INFO L275 PluginConnector]: CDTParser initialized [2022-04-28 01:15:16,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/prod4br-ll_unwindbound2.c [2022-04-28 01:15:17,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ea7b84e/8c2f2d1326ac49379901a1b28b7e4168/FLAG01bcb12cf [2022-04-28 01:15:17,373 INFO L306 CDTParser]: Found 1 translation units. [2022-04-28 01:15:17,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/prod4br-ll_unwindbound2.c [2022-04-28 01:15:17,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ea7b84e/8c2f2d1326ac49379901a1b28b7e4168/FLAG01bcb12cf [2022-04-28 01:15:17,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ea7b84e/8c2f2d1326ac49379901a1b28b7e4168 [2022-04-28 01:15:17,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-28 01:15:17,794 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-28 01:15:17,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-28 01:15:17,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-28 01:15:17,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-28 01:15:17,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 01:15:17" (1/1) ... [2022-04-28 01:15:17,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0f687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:15:17, skipping insertion in model container [2022-04-28 01:15:17,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 01:15:17" (1/1) ... [2022-04-28 01:15:17,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-28 01:15:17,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-28 01:15:17,996 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/prod4br-ll_unwindbound2.c[524,537] [2022-04-28 01:15:18,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 01:15:18,013 INFO L203 MainTranslator]: Completed pre-run [2022-04-28 01:15:18,020 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/prod4br-ll_unwindbound2.c[524,537] [2022-04-28 01:15:18,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 01:15:18,038 INFO L208 MainTranslator]: Completed translation [2022-04-28 01:15:18,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:15:18 WrapperNode [2022-04-28 01:15:18,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-28 01:15:18,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-28 01:15:18,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-28 01:15:18,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-28 01:15:18,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:15:18" (1/1) ... [2022-04-28 01:15:18,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:15:18" (1/1) ... [2022-04-28 01:15:18,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:15:18" (1/1) ... [2022-04-28 01:15:18,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:15:18" (1/1) ... [2022-04-28 01:15:18,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:15:18" (1/1) ... [2022-04-28 01:15:18,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:15:18" (1/1) ... [2022-04-28 01:15:18,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:15:18" (1/1) ... [2022-04-28 01:15:18,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-28 01:15:18,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-28 01:15:18,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-28 01:15:18,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-28 01:15:18,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:15:18" (1/1) ... [2022-04-28 01:15:18,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 01:15:18,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:15:18,093 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) [2022-04-28 01:15:18,103 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 [2022-04-28 01:15:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-28 01:15:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-28 01:15:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-28 01:15:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-28 01:15:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-28 01:15:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-28 01:15:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-28 01:15:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-28 01:15:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-28 01:15:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-28 01:15:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-28 01:15:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-28 01:15:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-28 01:15:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-28 01:15:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-28 01:15:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-28 01:15:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-28 01:15:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-28 01:15:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-28 01:15:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-28 01:15:18,161 INFO L234 CfgBuilder]: Building ICFG [2022-04-28 01:15:18,162 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-28 01:15:18,366 INFO L275 CfgBuilder]: Performing block encoding [2022-04-28 01:15:18,371 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-28 01:15:18,371 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-28 01:15:18,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 01:15:18 BoogieIcfgContainer [2022-04-28 01:15:18,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-28 01:15:18,373 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-28 01:15:18,373 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-28 01:15:18,374 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-28 01:15:18,379 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 01:15:18" (1/1) ... [2022-04-28 01:15:18,381 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-28 01:15:18,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.04 01:15:18 BasicIcfg [2022-04-28 01:15:18,405 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-28 01:15:18,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-28 01:15:18,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-28 01:15:18,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-28 01:15:18,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 01:15:17" (1/4) ... [2022-04-28 01:15:18,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2413782d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 01:15:18, skipping insertion in model container [2022-04-28 01:15:18,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:15:18" (2/4) ... [2022-04-28 01:15:18,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2413782d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 01:15:18, skipping insertion in model container [2022-04-28 01:15:18,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 01:15:18" (3/4) ... [2022-04-28 01:15:18,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2413782d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 01:15:18, skipping insertion in model container [2022-04-28 01:15:18,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.04 01:15:18" (4/4) ... [2022-04-28 01:15:18,410 INFO L111 eAbstractionObserver]: Analyzing ICFG prod4br-ll_unwindbound2.cqvasr [2022-04-28 01:15:18,419 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-28 01:15:18,419 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-28 01:15:18,445 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-28 01:15:18,449 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5135eddb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@60996af9 [2022-04-28 01:15:18,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-28 01:15:18,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 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) [2022-04-28 01:15:18,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-28 01:15:18,458 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:15:18,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:15:18,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:15:18,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:15:18,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1119019339, now seen corresponding path program 1 times [2022-04-28 01:15:18,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:15:18,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568973874] [2022-04-28 01:15:18,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:15:18,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:15:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:15:18,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 01:15:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:15:18,575 INFO L290 TraceCheckUtils]: 0: Hoare triple {44#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [82] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {35#true} is VALID [2022-04-28 01:15:18,575 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#true} [85] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {35#true} is VALID [2022-04-28 01:15:18,576 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {35#true} {35#true} [115] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {35#true} is VALID [2022-04-28 01:15:18,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-28 01:15:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:15:18,581 INFO L290 TraceCheckUtils]: 0: Hoare triple {35#true} [88] assume_abort_if_notENTRY-->L9: 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] {35#true} is VALID [2022-04-28 01:15:18,582 INFO L290 TraceCheckUtils]: 1: Hoare triple {35#true} [91] L9-->L9-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {36#false} is VALID [2022-04-28 01:15:18,582 INFO L290 TraceCheckUtils]: 2: Hoare triple {36#false} [96] L9-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {36#false} is VALID [2022-04-28 01:15:18,582 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {36#false} {35#true} [116] assume_abort_if_notEXIT-->L26-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {36#false} is VALID [2022-04-28 01:15:18,583 INFO L272 TraceCheckUtils]: 0: Hoare triple {35#true} [80] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 01:15:18,584 INFO L290 TraceCheckUtils]: 1: Hoare triple {44#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [82] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {35#true} is VALID [2022-04-28 01:15:18,584 INFO L290 TraceCheckUtils]: 2: Hoare triple {35#true} [85] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {35#true} is VALID [2022-04-28 01:15:18,584 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {35#true} {35#true} [115] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {35#true} is VALID [2022-04-28 01:15:18,585 INFO L272 TraceCheckUtils]: 4: Hoare triple {35#true} [81] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {35#true} is VALID [2022-04-28 01:15:18,585 INFO L290 TraceCheckUtils]: 5: Hoare triple {35#true} [84] mainENTRY-->L26: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_6, main_~p~0=v_main_~p~0_3, main_~a~0=v_main_~a~0_6} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {35#true} is VALID [2022-04-28 01:15:18,585 INFO L272 TraceCheckUtils]: 6: Hoare triple {35#true} [86] L26-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {35#true} is VALID [2022-04-28 01:15:18,585 INFO L290 TraceCheckUtils]: 7: Hoare triple {35#true} [88] assume_abort_if_notENTRY-->L9: 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] {35#true} is VALID [2022-04-28 01:15:18,586 INFO L290 TraceCheckUtils]: 8: Hoare triple {35#true} [91] L9-->L9-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {36#false} is VALID [2022-04-28 01:15:18,586 INFO L290 TraceCheckUtils]: 9: Hoare triple {36#false} [96] L9-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {36#false} is VALID [2022-04-28 01:15:18,586 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {36#false} {35#true} [116] assume_abort_if_notEXIT-->L26-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {36#false} is VALID [2022-04-28 01:15:18,587 INFO L290 TraceCheckUtils]: 11: Hoare triple {36#false} [87] L26-1-->L46-2: Formula: (and (= v_main_~a~0_9 v_main_~x~0_4) (= v_main_~b~0_9 v_main_~y~0_5) (= v_main_~q~0_8 0) (= v_main_~p~0_5 1)) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} OutVars{main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5, main_~b~0=v_main_~b~0_9, main_~p~0=v_main_~p~0_5, main_~a~0=v_main_~a~0_9} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~a~0] {36#false} is VALID [2022-04-28 01:15:18,587 INFO L290 TraceCheckUtils]: 12: Hoare triple {36#false} [89] L46-2-->L33-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {36#false} is VALID [2022-04-28 01:15:18,587 INFO L272 TraceCheckUtils]: 13: Hoare triple {36#false} [93] L33-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~q~0_12 (* v_main_~y~0_10 v_main_~x~0_8)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~q~0=v_main_~q~0_12, main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {36#false} is VALID [2022-04-28 01:15:18,587 INFO L290 TraceCheckUtils]: 14: Hoare triple {36#false} [98] __VERIFIER_assertENTRY-->L12: 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] {36#false} is VALID [2022-04-28 01:15:18,587 INFO L290 TraceCheckUtils]: 15: Hoare triple {36#false} [101] L12-->L13: 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[] {36#false} is VALID [2022-04-28 01:15:18,588 INFO L290 TraceCheckUtils]: 16: Hoare triple {36#false} [106] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {36#false} is VALID [2022-04-28 01:15:18,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:15:18,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:15:18,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568973874] [2022-04-28 01:15:18,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568973874] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 01:15:18,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 01:15:18,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-28 01:15:18,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211964723] [2022-04-28 01:15:18,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:15:18,594 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 [2022-04-28 01:15:18,595 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:15:18,597 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) [2022-04-28 01:15:18,626 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:15:18,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-28 01:15:18,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:15:18,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-28 01:15:18,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-28 01:15:18,651 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 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) [2022-04-28 01:15:18,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:15:18,785 INFO L93 Difference]: Finished difference Result 56 states and 77 transitions. [2022-04-28 01:15:18,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-28 01:15:18,785 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 [2022-04-28 01:15:18,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:15:18,787 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) [2022-04-28 01:15:18,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2022-04-28 01:15:18,795 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) [2022-04-28 01:15:18,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2022-04-28 01:15:18,805 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 77 transitions. [2022-04-28 01:15:18,875 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:15:18,882 INFO L225 Difference]: With dead ends: 56 [2022-04-28 01:15:18,882 INFO L226 Difference]: Without dead ends: 28 [2022-04-28 01:15:18,884 INFO L412 NwaCegarLoop]: 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 [2022-04-28 01:15:18,887 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 01:15:18,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 40 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:15:18,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-04-28 01:15:18,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2022-04-28 01:15:18,908 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:15:18,908 INFO L82 GeneralOperation]: Start isEquivalent. First operand 28 states. Second operand has 27 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), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:15:18,909 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand has 27 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), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:15:18,910 INFO L87 Difference]: Start difference. First operand 28 states. Second operand has 27 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), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:15:18,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:15:18,913 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-04-28 01:15:18,913 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-04-28 01:15:18,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:15:18,915 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:15:18,917 INFO L74 IsIncluded]: Start isIncluded. First operand has 27 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), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 28 states. [2022-04-28 01:15:18,918 INFO L87 Difference]: Start difference. First operand has 27 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), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 28 states. [2022-04-28 01:15:18,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:15:18,920 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-04-28 01:15:18,920 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-04-28 01:15:18,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:15:18,920 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:15:18,920 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:15:18,920 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:15:18,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 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), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 01:15:18,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-04-28 01:15:18,924 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 17 [2022-04-28 01:15:18,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:15:18,925 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-04-28 01:15:18,925 INFO L496 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) [2022-04-28 01:15:18,925 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-04-28 01:15:18,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-28 01:15:18,926 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:15:18,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:15:18,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-28 01:15:18,927 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:15:18,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:15:18,927 INFO L85 PathProgramCache]: Analyzing trace with hash -496973861, now seen corresponding path program 1 times [2022-04-28 01:15:18,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:15:18,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797095162] [2022-04-28 01:15:18,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:15:18,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:15:18,944 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:15:18,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [503495541] [2022-04-28 01:15:18,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:15:18,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:15:18,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:15:18,951 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) [2022-04-28 01:15:18,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-28 01:15:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:15:18,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-28 01:15:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:15:18,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:15:19,104 INFO L272 TraceCheckUtils]: 0: Hoare triple {214#true} [80] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {214#true} is VALID [2022-04-28 01:15:19,105 INFO L290 TraceCheckUtils]: 1: Hoare triple {214#true} [82] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {222#(<= ~counter~0 0)} is VALID [2022-04-28 01:15:19,106 INFO L290 TraceCheckUtils]: 2: Hoare triple {222#(<= ~counter~0 0)} [85] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {222#(<= ~counter~0 0)} is VALID [2022-04-28 01:15:19,106 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {222#(<= ~counter~0 0)} {214#true} [115] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {222#(<= ~counter~0 0)} is VALID [2022-04-28 01:15:19,107 INFO L272 TraceCheckUtils]: 4: Hoare triple {222#(<= ~counter~0 0)} [81] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {222#(<= ~counter~0 0)} is VALID [2022-04-28 01:15:19,107 INFO L290 TraceCheckUtils]: 5: Hoare triple {222#(<= ~counter~0 0)} [84] mainENTRY-->L26: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_6, main_~p~0=v_main_~p~0_3, main_~a~0=v_main_~a~0_6} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {222#(<= ~counter~0 0)} is VALID [2022-04-28 01:15:19,107 INFO L272 TraceCheckUtils]: 6: Hoare triple {222#(<= ~counter~0 0)} [86] L26-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {222#(<= ~counter~0 0)} is VALID [2022-04-28 01:15:19,108 INFO L290 TraceCheckUtils]: 7: Hoare triple {222#(<= ~counter~0 0)} [88] assume_abort_if_notENTRY-->L9: 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] {222#(<= ~counter~0 0)} is VALID [2022-04-28 01:15:19,108 INFO L290 TraceCheckUtils]: 8: Hoare triple {222#(<= ~counter~0 0)} [92] L9-->L9-2: 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[] {222#(<= ~counter~0 0)} is VALID [2022-04-28 01:15:19,109 INFO L290 TraceCheckUtils]: 9: Hoare triple {222#(<= ~counter~0 0)} [96] L9-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {222#(<= ~counter~0 0)} is VALID [2022-04-28 01:15:19,109 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {222#(<= ~counter~0 0)} {222#(<= ~counter~0 0)} [116] assume_abort_if_notEXIT-->L26-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {222#(<= ~counter~0 0)} is VALID [2022-04-28 01:15:19,110 INFO L290 TraceCheckUtils]: 11: Hoare triple {222#(<= ~counter~0 0)} [87] L26-1-->L46-2: Formula: (and (= v_main_~a~0_9 v_main_~x~0_4) (= v_main_~b~0_9 v_main_~y~0_5) (= v_main_~q~0_8 0) (= v_main_~p~0_5 1)) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} OutVars{main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5, main_~b~0=v_main_~b~0_9, main_~p~0=v_main_~p~0_5, main_~a~0=v_main_~a~0_9} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~a~0] {222#(<= ~counter~0 0)} is VALID [2022-04-28 01:15:19,110 INFO L290 TraceCheckUtils]: 12: Hoare triple {222#(<= ~counter~0 0)} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {256#(<= |main_#t~post6| 0)} is VALID [2022-04-28 01:15:19,110 INFO L290 TraceCheckUtils]: 13: Hoare triple {256#(<= |main_#t~post6| 0)} [94] L33-1-->L33-3: Formula: (not (< |v_main_#t~post6_3| 2)) InVars {main_#t~post6=|v_main_#t~post6_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {215#false} is VALID [2022-04-28 01:15:19,111 INFO L272 TraceCheckUtils]: 14: Hoare triple {215#false} [93] L33-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~q~0_12 (* v_main_~y~0_10 v_main_~x~0_8)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~q~0=v_main_~q~0_12, main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {215#false} is VALID [2022-04-28 01:15:19,111 INFO L290 TraceCheckUtils]: 15: Hoare triple {215#false} [98] __VERIFIER_assertENTRY-->L12: 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] {215#false} is VALID [2022-04-28 01:15:19,111 INFO L290 TraceCheckUtils]: 16: Hoare triple {215#false} [101] L12-->L13: 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[] {215#false} is VALID [2022-04-28 01:15:19,111 INFO L290 TraceCheckUtils]: 17: Hoare triple {215#false} [106] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {215#false} is VALID [2022-04-28 01:15:19,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:15:19,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 01:15:19,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:15:19,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797095162] [2022-04-28 01:15:19,112 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:15:19,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503495541] [2022-04-28 01:15:19,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503495541] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 01:15:19,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 01:15:19,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-28 01:15:19,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114895278] [2022-04-28 01:15:19,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:15:19,114 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 [2022-04-28 01:15:19,114 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:15:19,114 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) [2022-04-28 01:15:19,126 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:15:19,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-28 01:15:19,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:15:19,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-28 01:15:19,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-28 01:15:19,127 INFO L87 Difference]: Start difference. First operand 27 states and 33 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) [2022-04-28 01:15:19,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:15:19,176 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-04-28 01:15:19,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-28 01:15:19,176 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 [2022-04-28 01:15:19,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:15:19,176 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) [2022-04-28 01:15:19,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2022-04-28 01:15:19,178 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) [2022-04-28 01:15:19,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2022-04-28 01:15:19,179 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 44 transitions. [2022-04-28 01:15:19,208 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:15:19,209 INFO L225 Difference]: With dead ends: 37 [2022-04-28 01:15:19,209 INFO L226 Difference]: Without dead ends: 29 [2022-04-28 01:15:19,209 INFO L412 NwaCegarLoop]: 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 [2022-04-28 01:15:19,210 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 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 [2022-04-28 01:15:19,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:15:19,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-04-28 01:15:19,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-04-28 01:15:19,215 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:15:19,216 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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) [2022-04-28 01:15:19,216 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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) [2022-04-28 01:15:19,216 INFO L87 Difference]: Start difference. First operand 29 states. Second operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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) [2022-04-28 01:15:19,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:15:19,217 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2022-04-28 01:15:19,217 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-04-28 01:15:19,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:15:19,218 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:15:19,218 INFO L74 IsIncluded]: Start isIncluded. First operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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 29 states. [2022-04-28 01:15:19,218 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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 29 states. [2022-04-28 01:15:19,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:15:19,219 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2022-04-28 01:15:19,219 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-04-28 01:15:19,220 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:15:19,220 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:15:19,220 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:15:19,220 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:15:19,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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) [2022-04-28 01:15:19,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-04-28 01:15:19,221 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 18 [2022-04-28 01:15:19,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:15:19,221 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-04-28 01:15:19,222 INFO L496 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) [2022-04-28 01:15:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-04-28 01:15:19,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-28 01:15:19,222 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:15:19,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:15:19,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-28 01:15:19,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:15:19,442 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:15:19,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:15:19,443 INFO L85 PathProgramCache]: Analyzing trace with hash -495871594, now seen corresponding path program 1 times [2022-04-28 01:15:19,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:15:19,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619352238] [2022-04-28 01:15:19,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:15:19,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:15:19,456 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:15:19,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [989412844] [2022-04-28 01:15:19,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:15:19,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:15:19,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:15:19,464 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) [2022-04-28 01:15:19,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-28 01:15:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:15:19,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-28 01:15:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:15:19,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:15:19,647 INFO L272 TraceCheckUtils]: 0: Hoare triple {422#true} [80] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {422#true} is VALID [2022-04-28 01:15:19,648 INFO L290 TraceCheckUtils]: 1: Hoare triple {422#true} [82] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {422#true} is VALID [2022-04-28 01:15:19,648 INFO L290 TraceCheckUtils]: 2: Hoare triple {422#true} [85] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {422#true} is VALID [2022-04-28 01:15:19,648 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {422#true} {422#true} [115] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {422#true} is VALID [2022-04-28 01:15:19,648 INFO L272 TraceCheckUtils]: 4: Hoare triple {422#true} [81] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {422#true} is VALID [2022-04-28 01:15:19,648 INFO L290 TraceCheckUtils]: 5: Hoare triple {422#true} [84] mainENTRY-->L26: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_6, main_~p~0=v_main_~p~0_3, main_~a~0=v_main_~a~0_6} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {422#true} is VALID [2022-04-28 01:15:19,648 INFO L272 TraceCheckUtils]: 6: Hoare triple {422#true} [86] L26-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {422#true} is VALID [2022-04-28 01:15:19,649 INFO L290 TraceCheckUtils]: 7: Hoare triple {422#true} [88] assume_abort_if_notENTRY-->L9: 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] {422#true} is VALID [2022-04-28 01:15:19,649 INFO L290 TraceCheckUtils]: 8: Hoare triple {422#true} [92] L9-->L9-2: 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[] {422#true} is VALID [2022-04-28 01:15:19,649 INFO L290 TraceCheckUtils]: 9: Hoare triple {422#true} [96] L9-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {422#true} is VALID [2022-04-28 01:15:19,649 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {422#true} {422#true} [116] assume_abort_if_notEXIT-->L26-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {422#true} is VALID [2022-04-28 01:15:19,649 INFO L290 TraceCheckUtils]: 11: Hoare triple {422#true} [87] L26-1-->L46-2: Formula: (and (= v_main_~a~0_9 v_main_~x~0_4) (= v_main_~b~0_9 v_main_~y~0_5) (= v_main_~q~0_8 0) (= v_main_~p~0_5 1)) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} OutVars{main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5, main_~b~0=v_main_~b~0_9, main_~p~0=v_main_~p~0_5, main_~a~0=v_main_~a~0_9} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~a~0] {460#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} is VALID [2022-04-28 01:15:19,650 INFO L290 TraceCheckUtils]: 12: Hoare triple {460#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {460#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} is VALID [2022-04-28 01:15:19,650 INFO L290 TraceCheckUtils]: 13: Hoare triple {460#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} [95] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {460#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} is VALID [2022-04-28 01:15:19,651 INFO L272 TraceCheckUtils]: 14: Hoare triple {460#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} [99] L34-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {470#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:15:19,652 INFO L290 TraceCheckUtils]: 15: Hoare triple {470#(<= 1 |__VERIFIER_assert_#in~cond|)} [98] __VERIFIER_assertENTRY-->L12: 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] {474#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:15:19,652 INFO L290 TraceCheckUtils]: 16: Hoare triple {474#(<= 1 __VERIFIER_assert_~cond)} [101] L12-->L13: 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[] {423#false} is VALID [2022-04-28 01:15:19,652 INFO L290 TraceCheckUtils]: 17: Hoare triple {423#false} [106] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {423#false} is VALID [2022-04-28 01:15:19,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:15:19,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 01:15:19,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:15:19,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619352238] [2022-04-28 01:15:19,653 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:15:19,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989412844] [2022-04-28 01:15:19,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989412844] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 01:15:19,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 01:15:19,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-28 01:15:19,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056764290] [2022-04-28 01:15:19,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:15:19,654 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 [2022-04-28 01:15:19,654 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:15:19,654 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) [2022-04-28 01:15:19,666 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:15:19,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-28 01:15:19,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:15:19,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-28 01:15:19,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-28 01:15:19,666 INFO L87 Difference]: Start difference. First operand 29 states and 35 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) [2022-04-28 01:15:19,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:15:19,804 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2022-04-28 01:15:19,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-28 01:15:19,804 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 [2022-04-28 01:15:19,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:15:19,805 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) [2022-04-28 01:15:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2022-04-28 01:15:19,806 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) [2022-04-28 01:15:19,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2022-04-28 01:15:19,807 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 53 transitions. [2022-04-28 01:15:19,885 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:15:19,886 INFO L225 Difference]: With dead ends: 42 [2022-04-28 01:15:19,886 INFO L226 Difference]: Without dead ends: 40 [2022-04-28 01:15:19,887 INFO L412 NwaCegarLoop]: 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 [2022-04-28 01:15:19,887 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 9 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 01:15:19,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 83 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:15:19,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-04-28 01:15:19,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2022-04-28 01:15:19,893 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:15:19,893 INFO L82 GeneralOperation]: Start isEquivalent. First operand 40 states. Second operand has 34 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-28 01:15:19,894 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand has 34 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-28 01:15:19,894 INFO L87 Difference]: Start difference. First operand 40 states. Second operand has 34 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-28 01:15:19,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:15:19,896 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2022-04-28 01:15:19,896 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2022-04-28 01:15:19,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:15:19,896 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:15:19,896 INFO L74 IsIncluded]: Start isIncluded. First operand has 34 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 40 states. [2022-04-28 01:15:19,897 INFO L87 Difference]: Start difference. First operand has 34 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 40 states. [2022-04-28 01:15:19,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:15:19,898 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2022-04-28 01:15:19,898 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2022-04-28 01:15:19,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:15:19,899 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:15:19,899 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:15:19,899 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:15:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-28 01:15:19,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2022-04-28 01:15:19,900 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 18 [2022-04-28 01:15:19,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:15:19,900 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2022-04-28 01:15:19,900 INFO L496 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) [2022-04-28 01:15:19,900 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2022-04-28 01:15:19,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-28 01:15:19,901 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:15:19,901 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:15:19,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-28 01:15:20,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-28 01:15:20,117 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:15:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:15:20,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1025358414, now seen corresponding path program 1 times [2022-04-28 01:15:20,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:15:20,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527374137] [2022-04-28 01:15:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:15:20,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:15:20,128 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:15:20,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045669961] [2022-04-28 01:15:20,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:15:20,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:15:20,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:15:20,129 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) [2022-04-28 01:15:20,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-28 01:15:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:15:20,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-28 01:15:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:15:20,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:15:28,639 INFO L272 TraceCheckUtils]: 0: Hoare triple {668#true} [80] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {668#true} is VALID [2022-04-28 01:15:28,640 INFO L290 TraceCheckUtils]: 1: Hoare triple {668#true} [82] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {668#true} is VALID [2022-04-28 01:15:28,640 INFO L290 TraceCheckUtils]: 2: Hoare triple {668#true} [85] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {668#true} is VALID [2022-04-28 01:15:28,641 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {668#true} {668#true} [115] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {668#true} is VALID [2022-04-28 01:15:28,641 INFO L272 TraceCheckUtils]: 4: Hoare triple {668#true} [81] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {668#true} is VALID [2022-04-28 01:15:28,641 INFO L290 TraceCheckUtils]: 5: Hoare triple {668#true} [84] mainENTRY-->L26: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_6, main_~p~0=v_main_~p~0_3, main_~a~0=v_main_~a~0_6} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {668#true} is VALID [2022-04-28 01:15:28,641 INFO L272 TraceCheckUtils]: 6: Hoare triple {668#true} [86] L26-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {668#true} is VALID [2022-04-28 01:15:28,641 INFO L290 TraceCheckUtils]: 7: Hoare triple {668#true} [88] assume_abort_if_notENTRY-->L9: 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] {694#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-28 01:15:28,643 INFO L290 TraceCheckUtils]: 8: Hoare triple {694#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [92] L9-->L9-2: 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[] {698#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 01:15:28,645 INFO L290 TraceCheckUtils]: 9: Hoare triple {698#(not (= |assume_abort_if_not_#in~cond| 0))} [96] L9-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {698#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 01:15:28,654 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {698#(not (= |assume_abort_if_not_#in~cond| 0))} {668#true} [116] assume_abort_if_notEXIT-->L26-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {705#(<= 1 main_~y~0)} is VALID [2022-04-28 01:15:28,655 INFO L290 TraceCheckUtils]: 11: Hoare triple {705#(<= 1 main_~y~0)} [87] L26-1-->L46-2: Formula: (and (= v_main_~a~0_9 v_main_~x~0_4) (= v_main_~b~0_9 v_main_~y~0_5) (= v_main_~q~0_8 0) (= v_main_~p~0_5 1)) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} OutVars{main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5, main_~b~0=v_main_~b~0_9, main_~p~0=v_main_~p~0_5, main_~a~0=v_main_~a~0_9} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~a~0] {709#(and (<= main_~y~0 main_~b~0) (<= 1 main_~y~0))} is VALID [2022-04-28 01:15:28,657 INFO L290 TraceCheckUtils]: 12: Hoare triple {709#(and (<= main_~y~0 main_~b~0) (<= 1 main_~y~0))} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {709#(and (<= main_~y~0 main_~b~0) (<= 1 main_~y~0))} is VALID [2022-04-28 01:15:28,658 INFO L290 TraceCheckUtils]: 13: Hoare triple {709#(and (<= main_~y~0 main_~b~0) (<= 1 main_~y~0))} [95] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {709#(and (<= main_~y~0 main_~b~0) (<= 1 main_~y~0))} is VALID [2022-04-28 01:15:28,658 INFO L272 TraceCheckUtils]: 14: Hoare triple {709#(and (<= main_~y~0 main_~b~0) (<= 1 main_~y~0))} [99] L34-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {668#true} is VALID [2022-04-28 01:15:28,659 INFO L290 TraceCheckUtils]: 15: Hoare triple {668#true} [98] __VERIFIER_assertENTRY-->L12: 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] {722#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:15:28,659 INFO L290 TraceCheckUtils]: 16: Hoare triple {722#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} [102] L12-->L12-2: 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[] {726#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 01:15:28,659 INFO L290 TraceCheckUtils]: 17: Hoare triple {726#(not (= |__VERIFIER_assert_#in~cond| 0))} [108] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {726#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 01:15:30,673 WARN L284 TraceCheckUtils]: 18: Hoare quadruple {726#(not (= |__VERIFIER_assert_#in~cond| 0))} {709#(and (<= main_~y~0 main_~b~0) (<= 1 main_~y~0))} [118] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {733#(and (or (and (= (mod (+ (* main_~y~0 main_~x~0) (* (- 1) main_~q~0)) (* main_~b~0 main_~a~0)) 0) (not (= main_~a~0 0))) (= (+ (* main_~y~0 main_~x~0) (* (- 1) main_~q~0)) 0)) (<= main_~y~0 main_~b~0) (<= 1 main_~y~0))} is UNKNOWN [2022-04-28 01:15:30,674 INFO L290 TraceCheckUtils]: 19: Hoare triple {733#(and (or (and (= (mod (+ (* main_~y~0 main_~x~0) (* (- 1) main_~q~0)) (* main_~b~0 main_~a~0)) 0) (not (= main_~a~0 0))) (= (+ (* main_~y~0 main_~x~0) (* (- 1) main_~q~0)) 0)) (<= main_~y~0 main_~b~0) (<= 1 main_~y~0))} [103] L34-1-->L33-3: Formula: (or (= 0 v_main_~a~0_12) (= 0 v_main_~b~0_12)) InVars {main_~b~0=v_main_~b~0_12, main_~a~0=v_main_~a~0_12} OutVars{main_~b~0=v_main_~b~0_12, main_~a~0=v_main_~a~0_12} AuxVars[] AssignedVars[] {737#(and (= main_~q~0 (* main_~y~0 main_~x~0)) (<= 1 main_~y~0))} is VALID [2022-04-28 01:15:30,674 INFO L272 TraceCheckUtils]: 20: Hoare triple {737#(and (= main_~q~0 (* main_~y~0 main_~x~0)) (<= 1 main_~y~0))} [93] L33-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~q~0_12 (* v_main_~y~0_10 v_main_~x~0_8)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~q~0=v_main_~q~0_12, main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {741#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:15:30,675 INFO L290 TraceCheckUtils]: 21: Hoare triple {741#(<= 1 |__VERIFIER_assert_#in~cond|)} [98] __VERIFIER_assertENTRY-->L12: 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] {745#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:15:30,676 INFO L290 TraceCheckUtils]: 22: Hoare triple {745#(<= 1 __VERIFIER_assert_~cond)} [101] L12-->L13: 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[] {669#false} is VALID [2022-04-28 01:15:30,676 INFO L290 TraceCheckUtils]: 23: Hoare triple {669#false} [106] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {669#false} is VALID [2022-04-28 01:15:30,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:15:30,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 01:16:08,806 INFO L290 TraceCheckUtils]: 23: Hoare triple {669#false} [106] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {669#false} is VALID [2022-04-28 01:16:08,806 INFO L290 TraceCheckUtils]: 22: Hoare triple {745#(<= 1 __VERIFIER_assert_~cond)} [101] L12-->L13: 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[] {669#false} is VALID [2022-04-28 01:16:08,807 INFO L290 TraceCheckUtils]: 21: Hoare triple {741#(<= 1 |__VERIFIER_assert_#in~cond|)} [98] __VERIFIER_assertENTRY-->L12: 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] {745#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:16:08,808 INFO L272 TraceCheckUtils]: 20: Hoare triple {761#(= main_~q~0 (* main_~y~0 main_~x~0))} [93] L33-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~q~0_12 (* v_main_~y~0_10 v_main_~x~0_8)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~q~0=v_main_~q~0_12, main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {741#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:16:08,808 INFO L290 TraceCheckUtils]: 19: Hoare triple {765#(or (= main_~q~0 (* main_~y~0 main_~x~0)) (and (not (= main_~b~0 0)) (not (= main_~a~0 0))))} [103] L34-1-->L33-3: Formula: (or (= 0 v_main_~a~0_12) (= 0 v_main_~b~0_12)) InVars {main_~b~0=v_main_~b~0_12, main_~a~0=v_main_~a~0_12} OutVars{main_~b~0=v_main_~b~0_12, main_~a~0=v_main_~a~0_12} AuxVars[] AssignedVars[] {761#(= main_~q~0 (* main_~y~0 main_~x~0))} is VALID [2022-04-28 01:16:08,810 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {726#(not (= |__VERIFIER_assert_#in~cond| 0))} {668#true} [118] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {765#(or (= main_~q~0 (* main_~y~0 main_~x~0)) (and (not (= main_~b~0 0)) (not (= main_~a~0 0))))} is VALID [2022-04-28 01:16:08,810 INFO L290 TraceCheckUtils]: 17: Hoare triple {726#(not (= |__VERIFIER_assert_#in~cond| 0))} [108] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {726#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 01:16:08,811 INFO L290 TraceCheckUtils]: 16: Hoare triple {778#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} [102] L12-->L12-2: 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[] {726#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 01:16:08,811 INFO L290 TraceCheckUtils]: 15: Hoare triple {668#true} [98] __VERIFIER_assertENTRY-->L12: 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] {778#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-28 01:16:08,811 INFO L272 TraceCheckUtils]: 14: Hoare triple {668#true} [99] L34-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {668#true} is VALID [2022-04-28 01:16:08,811 INFO L290 TraceCheckUtils]: 13: Hoare triple {668#true} [95] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {668#true} is VALID [2022-04-28 01:16:08,811 INFO L290 TraceCheckUtils]: 12: Hoare triple {668#true} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {668#true} is VALID [2022-04-28 01:16:08,812 INFO L290 TraceCheckUtils]: 11: Hoare triple {668#true} [87] L26-1-->L46-2: Formula: (and (= v_main_~a~0_9 v_main_~x~0_4) (= v_main_~b~0_9 v_main_~y~0_5) (= v_main_~q~0_8 0) (= v_main_~p~0_5 1)) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} OutVars{main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5, main_~b~0=v_main_~b~0_9, main_~p~0=v_main_~p~0_5, main_~a~0=v_main_~a~0_9} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~a~0] {668#true} is VALID [2022-04-28 01:16:08,812 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {668#true} {668#true} [116] assume_abort_if_notEXIT-->L26-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {668#true} is VALID [2022-04-28 01:16:08,812 INFO L290 TraceCheckUtils]: 9: Hoare triple {668#true} [96] L9-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {668#true} is VALID [2022-04-28 01:16:08,812 INFO L290 TraceCheckUtils]: 8: Hoare triple {668#true} [92] L9-->L9-2: 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[] {668#true} is VALID [2022-04-28 01:16:08,812 INFO L290 TraceCheckUtils]: 7: Hoare triple {668#true} [88] assume_abort_if_notENTRY-->L9: 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] {668#true} is VALID [2022-04-28 01:16:08,812 INFO L272 TraceCheckUtils]: 6: Hoare triple {668#true} [86] L26-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {668#true} is VALID [2022-04-28 01:16:08,812 INFO L290 TraceCheckUtils]: 5: Hoare triple {668#true} [84] mainENTRY-->L26: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_6, main_~p~0=v_main_~p~0_3, main_~a~0=v_main_~a~0_6} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {668#true} is VALID [2022-04-28 01:16:08,812 INFO L272 TraceCheckUtils]: 4: Hoare triple {668#true} [81] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {668#true} is VALID [2022-04-28 01:16:08,813 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {668#true} {668#true} [115] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {668#true} is VALID [2022-04-28 01:16:08,813 INFO L290 TraceCheckUtils]: 2: Hoare triple {668#true} [85] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {668#true} is VALID [2022-04-28 01:16:08,813 INFO L290 TraceCheckUtils]: 1: Hoare triple {668#true} [82] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {668#true} is VALID [2022-04-28 01:16:08,813 INFO L272 TraceCheckUtils]: 0: Hoare triple {668#true} [80] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {668#true} is VALID [2022-04-28 01:16:08,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:16:08,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:16:08,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527374137] [2022-04-28 01:16:08,813 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:16:08,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045669961] [2022-04-28 01:16:08,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045669961] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 01:16:08,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-28 01:16:08,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 15 [2022-04-28 01:16:08,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571829117] [2022-04-28 01:16:08,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-28 01:16:08,814 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 24 [2022-04-28 01:16:08,815 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:16:08,815 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 15 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-28 01:16:10,840 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 36 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-28 01:16:10,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-28 01:16:10,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:16:10,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-28 01:16:10,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-04-28 01:16:10,842 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 15 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-28 01:16:14,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:16:14,208 INFO L93 Difference]: Finished difference Result 55 states and 72 transitions. [2022-04-28 01:16:14,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-28 01:16:14,208 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 24 [2022-04-28 01:16:14,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:16:14,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-28 01:16:14,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 69 transitions. [2022-04-28 01:16:14,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-28 01:16:14,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 69 transitions. [2022-04-28 01:16:14,212 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 14 states and 69 transitions. [2022-04-28 01:16:16,289 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 68 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-28 01:16:16,290 INFO L225 Difference]: With dead ends: 55 [2022-04-28 01:16:16,290 INFO L226 Difference]: Without dead ends: 53 [2022-04-28 01:16:16,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-04-28 01:16:16,291 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 51 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-28 01:16:16,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 123 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-28 01:16:16,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-04-28 01:16:16,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 39. [2022-04-28 01:16:16,313 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:16:16,313 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand has 39 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-28 01:16:16,313 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand has 39 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-28 01:16:16,314 INFO L87 Difference]: Start difference. First operand 53 states. Second operand has 39 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-28 01:16:16,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:16:16,316 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2022-04-28 01:16:16,316 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2022-04-28 01:16:16,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:16:16,316 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:16:16,316 INFO L74 IsIncluded]: Start isIncluded. First operand has 39 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) Second operand 53 states. [2022-04-28 01:16:16,317 INFO L87 Difference]: Start difference. First operand has 39 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) Second operand 53 states. [2022-04-28 01:16:16,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:16:16,318 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2022-04-28 01:16:16,318 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2022-04-28 01:16:16,321 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:16:16,321 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:16:16,321 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:16:16,321 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:16:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-28 01:16:16,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2022-04-28 01:16:16,323 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 24 [2022-04-28 01:16:16,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:16:16,323 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-04-28 01:16:16,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-28 01:16:16,324 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-04-28 01:16:16,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-04-28 01:16:16,325 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:16:16,325 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:16:16,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-04-28 01:16:16,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:16:16,543 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:16:16,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:16:16,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2117889998, now seen corresponding path program 1 times [2022-04-28 01:16:16,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:16:16,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382124805] [2022-04-28 01:16:16,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:16:16,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:16:16,564 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:16:16,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1578182181] [2022-04-28 01:16:16,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:16:16,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:16:16,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:16:16,573 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) [2022-04-28 01:16:16,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-28 01:16:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:16:16,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-28 01:16:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:16:16,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:16:16,812 INFO L272 TraceCheckUtils]: 0: Hoare triple {1077#true} [80] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1077#true} is VALID [2022-04-28 01:16:16,813 INFO L290 TraceCheckUtils]: 1: Hoare triple {1077#true} [82] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,813 INFO L290 TraceCheckUtils]: 2: Hoare triple {1085#(<= ~counter~0 0)} [85] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,814 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1085#(<= ~counter~0 0)} {1077#true} [115] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,814 INFO L272 TraceCheckUtils]: 4: Hoare triple {1085#(<= ~counter~0 0)} [81] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,815 INFO L290 TraceCheckUtils]: 5: Hoare triple {1085#(<= ~counter~0 0)} [84] mainENTRY-->L26: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_6, main_~p~0=v_main_~p~0_3, main_~a~0=v_main_~a~0_6} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,816 INFO L272 TraceCheckUtils]: 6: Hoare triple {1085#(<= ~counter~0 0)} [86] L26-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,817 INFO L290 TraceCheckUtils]: 7: Hoare triple {1085#(<= ~counter~0 0)} [88] assume_abort_if_notENTRY-->L9: 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] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,817 INFO L290 TraceCheckUtils]: 8: Hoare triple {1085#(<= ~counter~0 0)} [92] L9-->L9-2: 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[] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,819 INFO L290 TraceCheckUtils]: 9: Hoare triple {1085#(<= ~counter~0 0)} [96] L9-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,820 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1085#(<= ~counter~0 0)} {1085#(<= ~counter~0 0)} [116] assume_abort_if_notEXIT-->L26-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,823 INFO L290 TraceCheckUtils]: 11: Hoare triple {1085#(<= ~counter~0 0)} [87] L26-1-->L46-2: Formula: (and (= v_main_~a~0_9 v_main_~x~0_4) (= v_main_~b~0_9 v_main_~y~0_5) (= v_main_~q~0_8 0) (= v_main_~p~0_5 1)) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} OutVars{main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5, main_~b~0=v_main_~b~0_9, main_~p~0=v_main_~p~0_5, main_~a~0=v_main_~a~0_9} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~a~0] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,824 INFO L290 TraceCheckUtils]: 12: Hoare triple {1085#(<= ~counter~0 0)} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,824 INFO L290 TraceCheckUtils]: 13: Hoare triple {1119#(<= ~counter~0 1)} [95] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,825 INFO L272 TraceCheckUtils]: 14: Hoare triple {1119#(<= ~counter~0 1)} [99] L34-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,825 INFO L290 TraceCheckUtils]: 15: Hoare triple {1119#(<= ~counter~0 1)} [98] __VERIFIER_assertENTRY-->L12: 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] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,826 INFO L290 TraceCheckUtils]: 16: Hoare triple {1119#(<= ~counter~0 1)} [102] L12-->L12-2: 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[] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,826 INFO L290 TraceCheckUtils]: 17: Hoare triple {1119#(<= ~counter~0 1)} [108] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,827 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1119#(<= ~counter~0 1)} {1119#(<= ~counter~0 1)} [118] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,827 INFO L290 TraceCheckUtils]: 19: Hoare triple {1119#(<= ~counter~0 1)} [104] L34-1-->L39: Formula: (and (not (= 0 v_main_~b~0_13)) (not (= 0 v_main_~a~0_13))) InVars {main_~b~0=v_main_~b~0_13, main_~a~0=v_main_~a~0_13} OutVars{main_~b~0=v_main_~b~0_13, main_~a~0=v_main_~a~0_13} AuxVars[] AssignedVars[] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,827 INFO L290 TraceCheckUtils]: 20: Hoare triple {1119#(<= ~counter~0 1)} [109] L39-->L46-2: Formula: (let ((.cse5 (mod v_main_~b~0_15 2)) (.cse3 (mod v_main_~a~0_15 2))) (let ((.cse2 (and (not (= .cse3 0)) (< v_main_~a~0_15 0))) (.cse0 (and (not (= .cse5 0)) (< v_main_~b~0_15 0)))) (and (= (let ((.cse1 (div v_main_~b~0_15 2))) (ite .cse0 (+ .cse1 1) .cse1)) v_main_~b~0_14) (= v_main_~p~0_7 (* v_main_~p~0_8 4)) (= (ite .cse2 (+ (- 2) .cse3) .cse3) 0) (= (let ((.cse4 (div v_main_~a~0_15 2))) (ite .cse2 (+ .cse4 1) .cse4)) v_main_~a~0_14) (= (ite .cse0 (+ (- 2) .cse5) .cse5) 0)))) InVars {main_~b~0=v_main_~b~0_15, main_~p~0=v_main_~p~0_8, main_~a~0=v_main_~a~0_15} OutVars{main_~b~0=v_main_~b~0_14, main_~p~0=v_main_~p~0_7, main_~a~0=v_main_~a~0_14} AuxVars[] AssignedVars[main_~b~0, main_~p~0, main_~a~0] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,828 INFO L290 TraceCheckUtils]: 21: Hoare triple {1119#(<= ~counter~0 1)} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1147#(<= |main_#t~post6| 1)} is VALID [2022-04-28 01:16:16,828 INFO L290 TraceCheckUtils]: 22: Hoare triple {1147#(<= |main_#t~post6| 1)} [94] L33-1-->L33-3: Formula: (not (< |v_main_#t~post6_3| 2)) InVars {main_#t~post6=|v_main_#t~post6_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1078#false} is VALID [2022-04-28 01:16:16,828 INFO L272 TraceCheckUtils]: 23: Hoare triple {1078#false} [93] L33-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~q~0_12 (* v_main_~y~0_10 v_main_~x~0_8)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~q~0=v_main_~q~0_12, main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1078#false} is VALID [2022-04-28 01:16:16,829 INFO L290 TraceCheckUtils]: 24: Hoare triple {1078#false} [98] __VERIFIER_assertENTRY-->L12: 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] {1078#false} is VALID [2022-04-28 01:16:16,829 INFO L290 TraceCheckUtils]: 25: Hoare triple {1078#false} [101] L12-->L13: 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[] {1078#false} is VALID [2022-04-28 01:16:16,829 INFO L290 TraceCheckUtils]: 26: Hoare triple {1078#false} [106] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1078#false} is VALID [2022-04-28 01:16:16,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:16:16,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 01:16:16,964 INFO L290 TraceCheckUtils]: 26: Hoare triple {1078#false} [106] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1078#false} is VALID [2022-04-28 01:16:16,964 INFO L290 TraceCheckUtils]: 25: Hoare triple {1078#false} [101] L12-->L13: 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[] {1078#false} is VALID [2022-04-28 01:16:16,964 INFO L290 TraceCheckUtils]: 24: Hoare triple {1078#false} [98] __VERIFIER_assertENTRY-->L12: 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] {1078#false} is VALID [2022-04-28 01:16:16,965 INFO L272 TraceCheckUtils]: 23: Hoare triple {1078#false} [93] L33-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~q~0_12 (* v_main_~y~0_10 v_main_~x~0_8)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~q~0=v_main_~q~0_12, main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1078#false} is VALID [2022-04-28 01:16:16,965 INFO L290 TraceCheckUtils]: 22: Hoare triple {1147#(<= |main_#t~post6| 1)} [94] L33-1-->L33-3: Formula: (not (< |v_main_#t~post6_3| 2)) InVars {main_#t~post6=|v_main_#t~post6_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1078#false} is VALID [2022-04-28 01:16:16,966 INFO L290 TraceCheckUtils]: 21: Hoare triple {1119#(<= ~counter~0 1)} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1147#(<= |main_#t~post6| 1)} is VALID [2022-04-28 01:16:16,966 INFO L290 TraceCheckUtils]: 20: Hoare triple {1119#(<= ~counter~0 1)} [109] L39-->L46-2: Formula: (let ((.cse5 (mod v_main_~b~0_15 2)) (.cse3 (mod v_main_~a~0_15 2))) (let ((.cse2 (and (not (= .cse3 0)) (< v_main_~a~0_15 0))) (.cse0 (and (not (= .cse5 0)) (< v_main_~b~0_15 0)))) (and (= (let ((.cse1 (div v_main_~b~0_15 2))) (ite .cse0 (+ .cse1 1) .cse1)) v_main_~b~0_14) (= v_main_~p~0_7 (* v_main_~p~0_8 4)) (= (ite .cse2 (+ (- 2) .cse3) .cse3) 0) (= (let ((.cse4 (div v_main_~a~0_15 2))) (ite .cse2 (+ .cse4 1) .cse4)) v_main_~a~0_14) (= (ite .cse0 (+ (- 2) .cse5) .cse5) 0)))) InVars {main_~b~0=v_main_~b~0_15, main_~p~0=v_main_~p~0_8, main_~a~0=v_main_~a~0_15} OutVars{main_~b~0=v_main_~b~0_14, main_~p~0=v_main_~p~0_7, main_~a~0=v_main_~a~0_14} AuxVars[] AssignedVars[main_~b~0, main_~p~0, main_~a~0] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,966 INFO L290 TraceCheckUtils]: 19: Hoare triple {1119#(<= ~counter~0 1)} [104] L34-1-->L39: Formula: (and (not (= 0 v_main_~b~0_13)) (not (= 0 v_main_~a~0_13))) InVars {main_~b~0=v_main_~b~0_13, main_~a~0=v_main_~a~0_13} OutVars{main_~b~0=v_main_~b~0_13, main_~a~0=v_main_~a~0_13} AuxVars[] AssignedVars[] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,967 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1077#true} {1119#(<= ~counter~0 1)} [118] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,967 INFO L290 TraceCheckUtils]: 17: Hoare triple {1077#true} [108] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1077#true} is VALID [2022-04-28 01:16:16,967 INFO L290 TraceCheckUtils]: 16: Hoare triple {1077#true} [102] L12-->L12-2: 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[] {1077#true} is VALID [2022-04-28 01:16:16,967 INFO L290 TraceCheckUtils]: 15: Hoare triple {1077#true} [98] __VERIFIER_assertENTRY-->L12: 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] {1077#true} is VALID [2022-04-28 01:16:16,967 INFO L272 TraceCheckUtils]: 14: Hoare triple {1119#(<= ~counter~0 1)} [99] L34-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1077#true} is VALID [2022-04-28 01:16:16,968 INFO L290 TraceCheckUtils]: 13: Hoare triple {1119#(<= ~counter~0 1)} [95] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,968 INFO L290 TraceCheckUtils]: 12: Hoare triple {1085#(<= ~counter~0 0)} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1119#(<= ~counter~0 1)} is VALID [2022-04-28 01:16:16,969 INFO L290 TraceCheckUtils]: 11: Hoare triple {1085#(<= ~counter~0 0)} [87] L26-1-->L46-2: Formula: (and (= v_main_~a~0_9 v_main_~x~0_4) (= v_main_~b~0_9 v_main_~y~0_5) (= v_main_~q~0_8 0) (= v_main_~p~0_5 1)) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} OutVars{main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5, main_~b~0=v_main_~b~0_9, main_~p~0=v_main_~p~0_5, main_~a~0=v_main_~a~0_9} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~a~0] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,969 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1077#true} {1085#(<= ~counter~0 0)} [116] assume_abort_if_notEXIT-->L26-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,969 INFO L290 TraceCheckUtils]: 9: Hoare triple {1077#true} [96] L9-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1077#true} is VALID [2022-04-28 01:16:16,969 INFO L290 TraceCheckUtils]: 8: Hoare triple {1077#true} [92] L9-->L9-2: 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[] {1077#true} is VALID [2022-04-28 01:16:16,969 INFO L290 TraceCheckUtils]: 7: Hoare triple {1077#true} [88] assume_abort_if_notENTRY-->L9: 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] {1077#true} is VALID [2022-04-28 01:16:16,969 INFO L272 TraceCheckUtils]: 6: Hoare triple {1085#(<= ~counter~0 0)} [86] L26-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {1077#true} is VALID [2022-04-28 01:16:16,970 INFO L290 TraceCheckUtils]: 5: Hoare triple {1085#(<= ~counter~0 0)} [84] mainENTRY-->L26: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_6, main_~p~0=v_main_~p~0_3, main_~a~0=v_main_~a~0_6} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,970 INFO L272 TraceCheckUtils]: 4: Hoare triple {1085#(<= ~counter~0 0)} [81] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,970 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1085#(<= ~counter~0 0)} {1077#true} [115] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,971 INFO L290 TraceCheckUtils]: 2: Hoare triple {1085#(<= ~counter~0 0)} [85] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,971 INFO L290 TraceCheckUtils]: 1: Hoare triple {1077#true} [82] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {1085#(<= ~counter~0 0)} is VALID [2022-04-28 01:16:16,971 INFO L272 TraceCheckUtils]: 0: Hoare triple {1077#true} [80] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1077#true} is VALID [2022-04-28 01:16:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:16:16,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:16:16,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382124805] [2022-04-28 01:16:16,972 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:16:16,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578182181] [2022-04-28 01:16:16,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578182181] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 01:16:16,972 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-28 01:16:16,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2022-04-28 01:16:16,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067333720] [2022-04-28 01:16:16,972 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-28 01:16:16,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 27 [2022-04-28 01:16:16,973 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:16:16,973 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-28 01:16:16,996 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:16:16,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-28 01:16:16,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:16:16,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-28 01:16:16,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-28 01:16:16,997 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-28 01:16:17,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:16:17,104 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2022-04-28 01:16:17,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-28 01:16:17,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 27 [2022-04-28 01:16:17,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:16:17,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-28 01:16:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 64 transitions. [2022-04-28 01:16:17,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-28 01:16:17,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 64 transitions. [2022-04-28 01:16:17,107 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 64 transitions. [2022-04-28 01:16:17,149 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:16:17,150 INFO L225 Difference]: With dead ends: 65 [2022-04-28 01:16:17,150 INFO L226 Difference]: Without dead ends: 55 [2022-04-28 01:16:17,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-28 01:16:17,151 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 17 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 01:16:17,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 102 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:16:17,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-04-28 01:16:17,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2022-04-28 01:16:17,173 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:16:17,173 INFO L82 GeneralOperation]: Start isEquivalent. First operand 55 states. Second operand has 53 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 38 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:16:17,174 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand has 53 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 38 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:16:17,174 INFO L87 Difference]: Start difference. First operand 55 states. Second operand has 53 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 38 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:16:17,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:16:17,175 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2022-04-28 01:16:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2022-04-28 01:16:17,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:16:17,176 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:16:17,176 INFO L74 IsIncluded]: Start isIncluded. First operand has 53 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 38 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Second operand 55 states. [2022-04-28 01:16:17,176 INFO L87 Difference]: Start difference. First operand has 53 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 38 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Second operand 55 states. [2022-04-28 01:16:17,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:16:17,178 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2022-04-28 01:16:17,178 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2022-04-28 01:16:17,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:16:17,178 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:16:17,178 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:16:17,178 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:16:17,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 38 states have internal predecessors, (46), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:16:17,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2022-04-28 01:16:17,180 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 27 [2022-04-28 01:16:17,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:16:17,180 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2022-04-28 01:16:17,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-28 01:16:17,180 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2022-04-28 01:16:17,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-04-28 01:16:17,181 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:16:17,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:16:17,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-28 01:16:17,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:16:17,396 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:16:17,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:16:17,396 INFO L85 PathProgramCache]: Analyzing trace with hash -2116787731, now seen corresponding path program 1 times [2022-04-28 01:16:17,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:16:17,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443158663] [2022-04-28 01:16:17,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:16:17,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:16:17,408 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:16:17,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618349147] [2022-04-28 01:16:17,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:16:17,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:16:17,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:16:17,409 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) [2022-04-28 01:16:17,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-28 01:16:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:16:17,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 34 conjunts are in the unsatisfiable core [2022-04-28 01:16:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:16:17,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:16:26,784 INFO L272 TraceCheckUtils]: 0: Hoare triple {1518#true} [80] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1518#true} is VALID [2022-04-28 01:16:26,784 INFO L290 TraceCheckUtils]: 1: Hoare triple {1518#true} [82] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {1518#true} is VALID [2022-04-28 01:16:26,785 INFO L290 TraceCheckUtils]: 2: Hoare triple {1518#true} [85] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1518#true} is VALID [2022-04-28 01:16:26,785 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1518#true} {1518#true} [115] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1518#true} is VALID [2022-04-28 01:16:26,785 INFO L272 TraceCheckUtils]: 4: Hoare triple {1518#true} [81] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1518#true} is VALID [2022-04-28 01:16:26,785 INFO L290 TraceCheckUtils]: 5: Hoare triple {1518#true} [84] mainENTRY-->L26: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_6, main_~p~0=v_main_~p~0_3, main_~a~0=v_main_~a~0_6} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1518#true} is VALID [2022-04-28 01:16:26,785 INFO L272 TraceCheckUtils]: 6: Hoare triple {1518#true} [86] L26-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {1518#true} is VALID [2022-04-28 01:16:26,785 INFO L290 TraceCheckUtils]: 7: Hoare triple {1518#true} [88] assume_abort_if_notENTRY-->L9: 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] {1544#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-28 01:16:26,786 INFO L290 TraceCheckUtils]: 8: Hoare triple {1544#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [92] L9-->L9-2: 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[] {1548#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 01:16:26,786 INFO L290 TraceCheckUtils]: 9: Hoare triple {1548#(not (= |assume_abort_if_not_#in~cond| 0))} [96] L9-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1548#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 01:16:26,787 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1548#(not (= |assume_abort_if_not_#in~cond| 0))} {1518#true} [116] assume_abort_if_notEXIT-->L26-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {1555#(<= 1 main_~y~0)} is VALID [2022-04-28 01:16:26,788 INFO L290 TraceCheckUtils]: 11: Hoare triple {1555#(<= 1 main_~y~0)} [87] L26-1-->L46-2: Formula: (and (= v_main_~a~0_9 v_main_~x~0_4) (= v_main_~b~0_9 v_main_~y~0_5) (= v_main_~q~0_8 0) (= v_main_~p~0_5 1)) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} OutVars{main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5, main_~b~0=v_main_~b~0_9, main_~p~0=v_main_~p~0_5, main_~a~0=v_main_~a~0_9} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~a~0] {1559#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} is VALID [2022-04-28 01:16:26,788 INFO L290 TraceCheckUtils]: 12: Hoare triple {1559#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1559#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} is VALID [2022-04-28 01:16:26,788 INFO L290 TraceCheckUtils]: 13: Hoare triple {1559#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} [95] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1559#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} is VALID [2022-04-28 01:16:26,789 INFO L272 TraceCheckUtils]: 14: Hoare triple {1559#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} [99] L34-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1518#true} is VALID [2022-04-28 01:16:26,789 INFO L290 TraceCheckUtils]: 15: Hoare triple {1518#true} [98] __VERIFIER_assertENTRY-->L12: 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] {1572#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:16:26,789 INFO L290 TraceCheckUtils]: 16: Hoare triple {1572#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} [102] L12-->L12-2: 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[] {1576#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 01:16:26,789 INFO L290 TraceCheckUtils]: 17: Hoare triple {1576#(not (= |__VERIFIER_assert_#in~cond| 0))} [108] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1576#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 01:16:26,790 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1576#(not (= |__VERIFIER_assert_#in~cond| 0))} {1559#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} [118] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1559#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} is VALID [2022-04-28 01:16:26,791 INFO L290 TraceCheckUtils]: 19: Hoare triple {1559#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} [104] L34-1-->L39: Formula: (and (not (= 0 v_main_~b~0_13)) (not (= 0 v_main_~a~0_13))) InVars {main_~b~0=v_main_~b~0_13, main_~a~0=v_main_~a~0_13} OutVars{main_~b~0=v_main_~b~0_13, main_~a~0=v_main_~a~0_13} AuxVars[] AssignedVars[] {1559#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} is VALID [2022-04-28 01:16:26,792 INFO L290 TraceCheckUtils]: 20: Hoare triple {1559#(and (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (= main_~p~0 1))} [109] L39-->L46-2: Formula: (let ((.cse5 (mod v_main_~b~0_15 2)) (.cse3 (mod v_main_~a~0_15 2))) (let ((.cse2 (and (not (= .cse3 0)) (< v_main_~a~0_15 0))) (.cse0 (and (not (= .cse5 0)) (< v_main_~b~0_15 0)))) (and (= (let ((.cse1 (div v_main_~b~0_15 2))) (ite .cse0 (+ .cse1 1) .cse1)) v_main_~b~0_14) (= v_main_~p~0_7 (* v_main_~p~0_8 4)) (= (ite .cse2 (+ (- 2) .cse3) .cse3) 0) (= (let ((.cse4 (div v_main_~a~0_15 2))) (ite .cse2 (+ .cse4 1) .cse4)) v_main_~a~0_14) (= (ite .cse0 (+ (- 2) .cse5) .cse5) 0)))) InVars {main_~b~0=v_main_~b~0_15, main_~p~0=v_main_~p~0_8, main_~a~0=v_main_~a~0_15} OutVars{main_~b~0=v_main_~b~0_14, main_~p~0=v_main_~p~0_7, main_~a~0=v_main_~a~0_14} AuxVars[] AssignedVars[main_~b~0, main_~p~0, main_~a~0] {1589#(and (= (div main_~y~0 2) main_~b~0) (<= (mod main_~y~0 2) 0) (= main_~q~0 0) (= main_~p~0 4) (= (div main_~x~0 2) main_~a~0) (<= 1 main_~y~0) (= (mod main_~x~0 2) 0))} is VALID [2022-04-28 01:16:26,793 INFO L290 TraceCheckUtils]: 21: Hoare triple {1589#(and (= (div main_~y~0 2) main_~b~0) (<= (mod main_~y~0 2) 0) (= main_~q~0 0) (= main_~p~0 4) (= (div main_~x~0 2) main_~a~0) (<= 1 main_~y~0) (= (mod main_~x~0 2) 0))} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1589#(and (= (div main_~y~0 2) main_~b~0) (<= (mod main_~y~0 2) 0) (= main_~q~0 0) (= main_~p~0 4) (= (div main_~x~0 2) main_~a~0) (<= 1 main_~y~0) (= (mod main_~x~0 2) 0))} is VALID [2022-04-28 01:16:26,793 INFO L290 TraceCheckUtils]: 22: Hoare triple {1589#(and (= (div main_~y~0 2) main_~b~0) (<= (mod main_~y~0 2) 0) (= main_~q~0 0) (= main_~p~0 4) (= (div main_~x~0 2) main_~a~0) (<= 1 main_~y~0) (= (mod main_~x~0 2) 0))} [95] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1589#(and (= (div main_~y~0 2) main_~b~0) (<= (mod main_~y~0 2) 0) (= main_~q~0 0) (= main_~p~0 4) (= (div main_~x~0 2) main_~a~0) (<= 1 main_~y~0) (= (mod main_~x~0 2) 0))} is VALID [2022-04-28 01:16:26,798 INFO L272 TraceCheckUtils]: 23: Hoare triple {1589#(and (= (div main_~y~0 2) main_~b~0) (<= (mod main_~y~0 2) 0) (= main_~q~0 0) (= main_~p~0 4) (= (div main_~x~0 2) main_~a~0) (<= 1 main_~y~0) (= (mod main_~x~0 2) 0))} [99] L34-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1599#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:16:26,799 INFO L290 TraceCheckUtils]: 24: Hoare triple {1599#(<= 1 |__VERIFIER_assert_#in~cond|)} [98] __VERIFIER_assertENTRY-->L12: 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] {1603#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:16:26,799 INFO L290 TraceCheckUtils]: 25: Hoare triple {1603#(<= 1 __VERIFIER_assert_~cond)} [101] L12-->L13: 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[] {1519#false} is VALID [2022-04-28 01:16:26,799 INFO L290 TraceCheckUtils]: 26: Hoare triple {1519#false} [106] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1519#false} is VALID [2022-04-28 01:16:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:16:26,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 01:17:47,078 INFO L290 TraceCheckUtils]: 26: Hoare triple {1519#false} [106] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1519#false} is VALID [2022-04-28 01:17:47,079 INFO L290 TraceCheckUtils]: 25: Hoare triple {1603#(<= 1 __VERIFIER_assert_~cond)} [101] L12-->L13: 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[] {1519#false} is VALID [2022-04-28 01:17:47,079 INFO L290 TraceCheckUtils]: 24: Hoare triple {1599#(<= 1 |__VERIFIER_assert_#in~cond|)} [98] __VERIFIER_assertENTRY-->L12: 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] {1603#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:17:47,080 INFO L272 TraceCheckUtils]: 23: Hoare triple {1619#(= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))} [99] L34-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1599#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:17:47,080 INFO L290 TraceCheckUtils]: 22: Hoare triple {1619#(= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))} [95] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1619#(= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))} is VALID [2022-04-28 01:17:47,081 INFO L290 TraceCheckUtils]: 21: Hoare triple {1619#(= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1619#(= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))} is VALID [2022-04-28 01:17:47,084 INFO L290 TraceCheckUtils]: 20: Hoare triple {1629#(or (and (or (not (= (mod main_~b~0 2) 0)) (= (+ (* (div main_~b~0 2) (* main_~p~0 4) (div main_~a~0 2)) main_~q~0) (* main_~y~0 main_~x~0))) (or (= (mod main_~b~0 2) 0) (= (+ main_~q~0 (* (+ (div main_~b~0 2) 1) (* main_~p~0 4) (div main_~a~0 2))) (* main_~y~0 main_~x~0)))) (not (= (mod main_~a~0 2) 0)) (and (not (< main_~b~0 0)) (not (<= (mod main_~b~0 2) 0))))} [109] L39-->L46-2: Formula: (let ((.cse5 (mod v_main_~b~0_15 2)) (.cse3 (mod v_main_~a~0_15 2))) (let ((.cse2 (and (not (= .cse3 0)) (< v_main_~a~0_15 0))) (.cse0 (and (not (= .cse5 0)) (< v_main_~b~0_15 0)))) (and (= (let ((.cse1 (div v_main_~b~0_15 2))) (ite .cse0 (+ .cse1 1) .cse1)) v_main_~b~0_14) (= v_main_~p~0_7 (* v_main_~p~0_8 4)) (= (ite .cse2 (+ (- 2) .cse3) .cse3) 0) (= (let ((.cse4 (div v_main_~a~0_15 2))) (ite .cse2 (+ .cse4 1) .cse4)) v_main_~a~0_14) (= (ite .cse0 (+ (- 2) .cse5) .cse5) 0)))) InVars {main_~b~0=v_main_~b~0_15, main_~p~0=v_main_~p~0_8, main_~a~0=v_main_~a~0_15} OutVars{main_~b~0=v_main_~b~0_14, main_~p~0=v_main_~p~0_7, main_~a~0=v_main_~a~0_14} AuxVars[] AssignedVars[main_~b~0, main_~p~0, main_~a~0] {1619#(= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))} is VALID [2022-04-28 01:17:47,085 INFO L290 TraceCheckUtils]: 19: Hoare triple {1629#(or (and (or (not (= (mod main_~b~0 2) 0)) (= (+ (* (div main_~b~0 2) (* main_~p~0 4) (div main_~a~0 2)) main_~q~0) (* main_~y~0 main_~x~0))) (or (= (mod main_~b~0 2) 0) (= (+ main_~q~0 (* (+ (div main_~b~0 2) 1) (* main_~p~0 4) (div main_~a~0 2))) (* main_~y~0 main_~x~0)))) (not (= (mod main_~a~0 2) 0)) (and (not (< main_~b~0 0)) (not (<= (mod main_~b~0 2) 0))))} [104] L34-1-->L39: Formula: (and (not (= 0 v_main_~b~0_13)) (not (= 0 v_main_~a~0_13))) InVars {main_~b~0=v_main_~b~0_13, main_~a~0=v_main_~a~0_13} OutVars{main_~b~0=v_main_~b~0_13, main_~a~0=v_main_~a~0_13} AuxVars[] AssignedVars[] {1629#(or (and (or (not (= (mod main_~b~0 2) 0)) (= (+ (* (div main_~b~0 2) (* main_~p~0 4) (div main_~a~0 2)) main_~q~0) (* main_~y~0 main_~x~0))) (or (= (mod main_~b~0 2) 0) (= (+ main_~q~0 (* (+ (div main_~b~0 2) 1) (* main_~p~0 4) (div main_~a~0 2))) (* main_~y~0 main_~x~0)))) (not (= (mod main_~a~0 2) 0)) (and (not (< main_~b~0 0)) (not (<= (mod main_~b~0 2) 0))))} is VALID [2022-04-28 01:17:47,092 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {1576#(not (= |__VERIFIER_assert_#in~cond| 0))} {1636#(or (not (= (mod main_~a~0 2) 0)) (= (mod main_~b~0 2) 0) (not (< main_~b~0 0)) (not (= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))) (= (+ main_~q~0 (* (+ (div main_~b~0 2) 1) (* main_~p~0 4) (div main_~a~0 2))) (* main_~y~0 main_~x~0)))} [118] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1629#(or (and (or (not (= (mod main_~b~0 2) 0)) (= (+ (* (div main_~b~0 2) (* main_~p~0 4) (div main_~a~0 2)) main_~q~0) (* main_~y~0 main_~x~0))) (or (= (mod main_~b~0 2) 0) (= (+ main_~q~0 (* (+ (div main_~b~0 2) 1) (* main_~p~0 4) (div main_~a~0 2))) (* main_~y~0 main_~x~0)))) (not (= (mod main_~a~0 2) 0)) (and (not (< main_~b~0 0)) (not (<= (mod main_~b~0 2) 0))))} is VALID [2022-04-28 01:17:47,092 INFO L290 TraceCheckUtils]: 17: Hoare triple {1576#(not (= |__VERIFIER_assert_#in~cond| 0))} [108] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1576#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 01:17:47,096 INFO L290 TraceCheckUtils]: 16: Hoare triple {1646#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} [102] L12-->L12-2: 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[] {1576#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 01:17:47,096 INFO L290 TraceCheckUtils]: 15: Hoare triple {1518#true} [98] __VERIFIER_assertENTRY-->L12: 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] {1646#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-28 01:17:47,096 INFO L272 TraceCheckUtils]: 14: Hoare triple {1636#(or (not (= (mod main_~a~0 2) 0)) (= (mod main_~b~0 2) 0) (not (< main_~b~0 0)) (not (= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))) (= (+ main_~q~0 (* (+ (div main_~b~0 2) 1) (* main_~p~0 4) (div main_~a~0 2))) (* main_~y~0 main_~x~0)))} [99] L34-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1518#true} is VALID [2022-04-28 01:17:47,097 INFO L290 TraceCheckUtils]: 13: Hoare triple {1636#(or (not (= (mod main_~a~0 2) 0)) (= (mod main_~b~0 2) 0) (not (< main_~b~0 0)) (not (= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))) (= (+ main_~q~0 (* (+ (div main_~b~0 2) 1) (* main_~p~0 4) (div main_~a~0 2))) (* main_~y~0 main_~x~0)))} [95] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1636#(or (not (= (mod main_~a~0 2) 0)) (= (mod main_~b~0 2) 0) (not (< main_~b~0 0)) (not (= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))) (= (+ main_~q~0 (* (+ (div main_~b~0 2) 1) (* main_~p~0 4) (div main_~a~0 2))) (* main_~y~0 main_~x~0)))} is VALID [2022-04-28 01:17:47,097 INFO L290 TraceCheckUtils]: 12: Hoare triple {1636#(or (not (= (mod main_~a~0 2) 0)) (= (mod main_~b~0 2) 0) (not (< main_~b~0 0)) (not (= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))) (= (+ main_~q~0 (* (+ (div main_~b~0 2) 1) (* main_~p~0 4) (div main_~a~0 2))) (* main_~y~0 main_~x~0)))} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1636#(or (not (= (mod main_~a~0 2) 0)) (= (mod main_~b~0 2) 0) (not (< main_~b~0 0)) (not (= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))) (= (+ main_~q~0 (* (+ (div main_~b~0 2) 1) (* main_~p~0 4) (div main_~a~0 2))) (* main_~y~0 main_~x~0)))} is VALID [2022-04-28 01:17:47,098 INFO L290 TraceCheckUtils]: 11: Hoare triple {1659#(or (<= 0 main_~y~0) (= (mod main_~y~0 2) 0) (= (+ (* (div main_~x~0 2) 4) (* (* (div main_~x~0 2) (div main_~y~0 2)) 4)) (* main_~y~0 main_~x~0)) (not (= (mod main_~x~0 2) 0)))} [87] L26-1-->L46-2: Formula: (and (= v_main_~a~0_9 v_main_~x~0_4) (= v_main_~b~0_9 v_main_~y~0_5) (= v_main_~q~0_8 0) (= v_main_~p~0_5 1)) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} OutVars{main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5, main_~b~0=v_main_~b~0_9, main_~p~0=v_main_~p~0_5, main_~a~0=v_main_~a~0_9} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~a~0] {1636#(or (not (= (mod main_~a~0 2) 0)) (= (mod main_~b~0 2) 0) (not (< main_~b~0 0)) (not (= (+ main_~q~0 (* main_~b~0 main_~a~0 main_~p~0)) (* main_~y~0 main_~x~0))) (= (+ main_~q~0 (* (+ (div main_~b~0 2) 1) (* main_~p~0 4) (div main_~a~0 2))) (* main_~y~0 main_~x~0)))} is VALID [2022-04-28 01:17:47,099 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1548#(not (= |assume_abort_if_not_#in~cond| 0))} {1518#true} [116] assume_abort_if_notEXIT-->L26-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {1659#(or (<= 0 main_~y~0) (= (mod main_~y~0 2) 0) (= (+ (* (div main_~x~0 2) 4) (* (* (div main_~x~0 2) (div main_~y~0 2)) 4)) (* main_~y~0 main_~x~0)) (not (= (mod main_~x~0 2) 0)))} is VALID [2022-04-28 01:17:47,099 INFO L290 TraceCheckUtils]: 9: Hoare triple {1548#(not (= |assume_abort_if_not_#in~cond| 0))} [96] L9-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1548#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 01:17:47,099 INFO L290 TraceCheckUtils]: 8: Hoare triple {1672#(or (not (= |assume_abort_if_not_#in~cond| 0)) (= assume_abort_if_not_~cond 0))} [92] L9-->L9-2: 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[] {1548#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 01:17:47,100 INFO L290 TraceCheckUtils]: 7: Hoare triple {1518#true} [88] assume_abort_if_notENTRY-->L9: 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] {1672#(or (not (= |assume_abort_if_not_#in~cond| 0)) (= assume_abort_if_not_~cond 0))} is VALID [2022-04-28 01:17:47,100 INFO L272 TraceCheckUtils]: 6: Hoare triple {1518#true} [86] L26-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {1518#true} is VALID [2022-04-28 01:17:47,100 INFO L290 TraceCheckUtils]: 5: Hoare triple {1518#true} [84] mainENTRY-->L26: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_6, main_~p~0=v_main_~p~0_3, main_~a~0=v_main_~a~0_6} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {1518#true} is VALID [2022-04-28 01:17:47,101 INFO L272 TraceCheckUtils]: 4: Hoare triple {1518#true} [81] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1518#true} is VALID [2022-04-28 01:17:47,101 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1518#true} {1518#true} [115] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1518#true} is VALID [2022-04-28 01:17:47,101 INFO L290 TraceCheckUtils]: 2: Hoare triple {1518#true} [85] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1518#true} is VALID [2022-04-28 01:17:47,101 INFO L290 TraceCheckUtils]: 1: Hoare triple {1518#true} [82] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {1518#true} is VALID [2022-04-28 01:17:47,101 INFO L272 TraceCheckUtils]: 0: Hoare triple {1518#true} [80] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1518#true} is VALID [2022-04-28 01:17:47,101 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:17:47,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:17:47,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443158663] [2022-04-28 01:17:47,102 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:17:47,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618349147] [2022-04-28 01:17:47,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618349147] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 01:17:47,102 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-28 01:17:47,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 17 [2022-04-28 01:17:47,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134471913] [2022-04-28 01:17:47,102 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-28 01:17:47,103 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 27 [2022-04-28 01:17:47,103 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:17:47,103 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 17 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-28 01:17:47,141 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:17:47,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-28 01:17:47,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:17:47,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-28 01:17:47,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-04-28 01:17:47,142 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 17 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-28 01:17:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:17:50,092 INFO L93 Difference]: Finished difference Result 76 states and 98 transitions. [2022-04-28 01:17:50,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-28 01:17:50,092 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 27 [2022-04-28 01:17:50,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:17:50,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-28 01:17:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 83 transitions. [2022-04-28 01:17:50,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-28 01:17:50,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 83 transitions. [2022-04-28 01:17:50,096 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 13 states and 83 transitions. [2022-04-28 01:17:50,279 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 83 edges. 83 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:17:50,282 INFO L225 Difference]: With dead ends: 76 [2022-04-28 01:17:50,282 INFO L226 Difference]: Without dead ends: 74 [2022-04-28 01:17:50,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-04-28 01:17:50,283 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 88 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-28 01:17:50,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 175 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-28 01:17:50,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-04-28 01:17:50,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 57. [2022-04-28 01:17:50,308 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:17:50,308 INFO L82 GeneralOperation]: Start isEquivalent. First operand 74 states. Second operand has 57 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 41 states have internal predecessors, (49), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:17:50,308 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand has 57 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 41 states have internal predecessors, (49), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:17:50,308 INFO L87 Difference]: Start difference. First operand 74 states. Second operand has 57 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 41 states have internal predecessors, (49), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:17:50,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:17:50,313 INFO L93 Difference]: Finished difference Result 74 states and 96 transitions. [2022-04-28 01:17:50,313 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2022-04-28 01:17:50,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:17:50,314 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:17:50,314 INFO L74 IsIncluded]: Start isIncluded. First operand has 57 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 41 states have internal predecessors, (49), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Second operand 74 states. [2022-04-28 01:17:50,314 INFO L87 Difference]: Start difference. First operand has 57 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 41 states have internal predecessors, (49), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Second operand 74 states. [2022-04-28 01:17:50,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:17:50,321 INFO L93 Difference]: Finished difference Result 74 states and 96 transitions. [2022-04-28 01:17:50,321 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2022-04-28 01:17:50,322 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:17:50,322 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:17:50,322 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:17:50,322 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:17:50,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 41 states have internal predecessors, (49), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:17:50,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 66 transitions. [2022-04-28 01:17:50,323 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 66 transitions. Word has length 27 [2022-04-28 01:17:50,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:17:50,324 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 66 transitions. [2022-04-28 01:17:50,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-04-28 01:17:50,324 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2022-04-28 01:17:50,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-28 01:17:50,324 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:17:50,324 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:17:50,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-28 01:17:50,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:17:50,540 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:17:50,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:17:50,540 INFO L85 PathProgramCache]: Analyzing trace with hash -410392694, now seen corresponding path program 1 times [2022-04-28 01:17:50,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:17:50,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078714801] [2022-04-28 01:17:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:17:50,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:17:50,554 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:17:50,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241091585] [2022-04-28 01:17:50,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:17:50,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:17:50,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:17:50,555 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) [2022-04-28 01:17:50,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-28 01:17:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:17:50,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2022-04-28 01:17:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:17:50,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:17:50,749 INFO L272 TraceCheckUtils]: 0: Hoare triple {2038#true} [80] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {2038#true} is VALID [2022-04-28 01:17:50,749 INFO L290 TraceCheckUtils]: 1: Hoare triple {2038#true} [82] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 13) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {2038#true} is VALID [2022-04-28 01:17:50,749 INFO L290 TraceCheckUtils]: 2: Hoare triple {2038#true} [85] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {2038#true} is VALID [2022-04-28 01:17:50,749 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2038#true} {2038#true} [115] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {2038#true} is VALID [2022-04-28 01:17:50,750 INFO L272 TraceCheckUtils]: 4: Hoare triple {2038#true} [81] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {2038#true} is VALID [2022-04-28 01:17:50,750 INFO L290 TraceCheckUtils]: 5: Hoare triple {2038#true} [84] mainENTRY-->L26: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_6, main_~p~0=v_main_~p~0_3, main_~a~0=v_main_~a~0_6} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {2038#true} is VALID [2022-04-28 01:17:50,750 INFO L272 TraceCheckUtils]: 6: Hoare triple {2038#true} [86] L26-->assume_abort_if_notENTRY: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {2038#true} is VALID [2022-04-28 01:17:50,750 INFO L290 TraceCheckUtils]: 7: Hoare triple {2038#true} [88] assume_abort_if_notENTRY-->L9: 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] {2064#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-28 01:17:50,751 INFO L290 TraceCheckUtils]: 8: Hoare triple {2064#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [92] L9-->L9-2: 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[] {2068#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 01:17:50,751 INFO L290 TraceCheckUtils]: 9: Hoare triple {2068#(not (= |assume_abort_if_not_#in~cond| 0))} [96] L9-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {2068#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 01:17:50,751 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {2068#(not (= |assume_abort_if_not_#in~cond| 0))} {2038#true} [116] assume_abort_if_notEXIT-->L26-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (<= 1 v_main_~y~0_8) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~y~0=v_main_~y~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {2075#(<= 1 main_~y~0)} is VALID [2022-04-28 01:17:50,752 INFO L290 TraceCheckUtils]: 11: Hoare triple {2075#(<= 1 main_~y~0)} [87] L26-1-->L46-2: Formula: (and (= v_main_~a~0_9 v_main_~x~0_4) (= v_main_~b~0_9 v_main_~y~0_5) (= v_main_~q~0_8 0) (= v_main_~p~0_5 1)) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} OutVars{main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5, main_~b~0=v_main_~b~0_9, main_~p~0=v_main_~p~0_5, main_~a~0=v_main_~a~0_9} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~a~0] {2079#(<= 1 main_~b~0)} is VALID [2022-04-28 01:17:50,752 INFO L290 TraceCheckUtils]: 12: Hoare triple {2079#(<= 1 main_~b~0)} [90] L46-2-->L33-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {2079#(<= 1 main_~b~0)} is VALID [2022-04-28 01:17:50,753 INFO L290 TraceCheckUtils]: 13: Hoare triple {2079#(<= 1 main_~b~0)} [95] L33-1-->L34: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {2079#(<= 1 main_~b~0)} is VALID [2022-04-28 01:17:50,753 INFO L272 TraceCheckUtils]: 14: Hoare triple {2079#(<= 1 main_~b~0)} [99] L34-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {2038#true} is VALID [2022-04-28 01:17:50,753 INFO L290 TraceCheckUtils]: 15: Hoare triple {2038#true} [98] __VERIFIER_assertENTRY-->L12: 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] {2038#true} is VALID [2022-04-28 01:17:50,753 INFO L290 TraceCheckUtils]: 16: Hoare triple {2038#true} [102] L12-->L12-2: 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[] {2038#true} is VALID [2022-04-28 01:17:50,753 INFO L290 TraceCheckUtils]: 17: Hoare triple {2038#true} [108] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {2038#true} is VALID [2022-04-28 01:17:50,754 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {2038#true} {2079#(<= 1 main_~b~0)} [118] __VERIFIER_assertEXIT-->L34-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ v_main_~q~0_11 (* v_main_~p~0_9 (* v_main_~a~0_16 v_main_~b~0_16))) (* v_main_~x~0_7 v_main_~y~0_9)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~q~0=v_main_~q~0_11, main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_9, main_~b~0=v_main_~b~0_16, main_~p~0=v_main_~p~0_9, main_~a~0=v_main_~a~0_16} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~a~0] {2079#(<= 1 main_~b~0)} is VALID [2022-04-28 01:17:50,754 INFO L290 TraceCheckUtils]: 19: Hoare triple {2079#(<= 1 main_~b~0)} [103] L34-1-->L33-3: Formula: (or (= 0 v_main_~a~0_12) (= 0 v_main_~b~0_12)) InVars {main_~b~0=v_main_~b~0_12, main_~a~0=v_main_~a~0_12} OutVars{main_~b~0=v_main_~b~0_12, main_~a~0=v_main_~a~0_12} AuxVars[] AssignedVars[] {2104#(and (= main_~a~0 0) (<= 1 main_~b~0))} is VALID [2022-04-28 01:17:50,755 INFO L272 TraceCheckUtils]: 20: Hoare triple {2104#(and (= main_~a~0 0) (<= 1 main_~b~0))} [93] L33-3-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~q~0_12 (* v_main_~y~0_10 v_main_~x~0_8)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~q~0=v_main_~q~0_12, main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {2038#true} is VALID [2022-04-28 01:17:50,755 INFO L290 TraceCheckUtils]: 21: Hoare triple {2038#true} [98] __VERIFIER_assertENTRY-->L12: 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] {2038#true} is VALID [2022-04-28 01:17:50,755 INFO L290 TraceCheckUtils]: 22: Hoare triple {2038#true} [102] L12-->L12-2: 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[] {2038#true} is VALID [2022-04-28 01:17:50,755 INFO L290 TraceCheckUtils]: 23: Hoare triple {2038#true} [108] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {2038#true} is VALID [2022-04-28 01:17:50,755 INFO L284 TraceCheckUtils]: 24: Hoare quadruple {2038#true} {2104#(and (= main_~a~0 0) (<= 1 main_~b~0))} [119] __VERIFIER_assertEXIT-->L56: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= v_main_~q~0_12 (* v_main_~y~0_10 v_main_~x~0_8)) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~q~0=v_main_~q~0_12, main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {2104#(and (= main_~a~0 0) (<= 1 main_~b~0))} is VALID [2022-04-28 01:17:50,756 INFO L272 TraceCheckUtils]: 25: Hoare triple {2104#(and (= main_~a~0 0) (<= 1 main_~b~0))} [97] L56-->__VERIFIER_assertENTRY: Formula: (= (ite (= (* v_main_~a~0_17 v_main_~b~0_17) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~b~0=v_main_~b~0_17, main_~a~0=v_main_~a~0_17} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~b~0, main_~a~0] {2123#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:17:50,756 INFO L290 TraceCheckUtils]: 26: Hoare triple {2123#(<= 1 |__VERIFIER_assert_#in~cond|)} [98] __VERIFIER_assertENTRY-->L12: 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] {2127#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:17:50,757 INFO L290 TraceCheckUtils]: 27: Hoare triple {2127#(<= 1 __VERIFIER_assert_~cond)} [101] L12-->L13: 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[] {2039#false} is VALID [2022-04-28 01:17:50,757 INFO L290 TraceCheckUtils]: 28: Hoare triple {2039#false} [106] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {2039#false} is VALID [2022-04-28 01:17:50,757 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-28 01:17:50,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 01:17:50,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:17:50,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078714801] [2022-04-28 01:17:50,757 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:17:50,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241091585] [2022-04-28 01:17:50,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241091585] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 01:17:50,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 01:17:50,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-28 01:17:50,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269337071] [2022-04-28 01:17:50,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:17:50,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2022-04-28 01:17:50,758 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:17:50,758 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-28 01:17:50,777 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:17:50,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-28 01:17:50,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:17:50,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-28 01:17:50,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-04-28 01:17:50,778 INFO L87 Difference]: Start difference. First operand 57 states and 66 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-28 01:17:51,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:17:51,073 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2022-04-28 01:17:51,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-28 01:17:51,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2022-04-28 01:17:51,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:17:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-28 01:17:51,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 57 transitions. [2022-04-28 01:17:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-28 01:17:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 57 transitions. [2022-04-28 01:17:51,076 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 57 transitions. [2022-04-28 01:17:51,127 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:17:51,128 INFO L225 Difference]: With dead ends: 76 [2022-04-28 01:17:51,128 INFO L226 Difference]: Without dead ends: 60 [2022-04-28 01:17:51,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-04-28 01:17:51,129 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 33 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-28 01:17:51,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 141 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-28 01:17:51,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-04-28 01:17:51,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2022-04-28 01:17:51,158 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:17:51,158 INFO L82 GeneralOperation]: Start isEquivalent. First operand 60 states. Second operand has 57 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 43 states have internal predecessors, (53), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:17:51,158 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand has 57 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 43 states have internal predecessors, (53), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:17:51,159 INFO L87 Difference]: Start difference. First operand 60 states. Second operand has 57 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 43 states have internal predecessors, (53), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:17:51,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:17:51,160 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2022-04-28 01:17:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2022-04-28 01:17:51,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:17:51,160 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:17:51,161 INFO L74 IsIncluded]: Start isIncluded. First operand has 57 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 43 states have internal predecessors, (53), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Second operand 60 states. [2022-04-28 01:17:51,161 INFO L87 Difference]: Start difference. First operand has 57 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 43 states have internal predecessors, (53), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Second operand 60 states. [2022-04-28 01:17:51,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:17:51,162 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2022-04-28 01:17:51,162 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2022-04-28 01:17:51,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:17:51,163 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:17:51,163 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:17:51,163 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:17:51,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 43 states have internal predecessors, (53), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-28 01:17:51,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2022-04-28 01:17:51,164 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 29 [2022-04-28 01:17:51,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:17:51,164 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2022-04-28 01:17:51,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-28 01:17:51,165 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2022-04-28 01:17:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-04-28 01:17:51,165 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:17:51,165 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:17:51,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-28 01:17:51,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:17:51,381 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:17:51,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:17:51,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1979136443, now seen corresponding path program 2 times [2022-04-28 01:17:51,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:17:51,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669753583] [2022-04-28 01:17:51,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:17:51,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:17:51,391 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:17:51,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1853105959] [2022-04-28 01:17:51,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-28 01:17:51,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:17:51,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:17:51,402 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) [2022-04-28 01:17:51,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-28 01:17:51,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-28 01:17:51,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-04-28 01:17:51,443 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-28 01:17:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-28 01:17:51,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-28 01:17:51,469 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-04-28 01:17:51,469 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-28 01:17:51,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-04-28 01:17:51,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:17:51,689 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-04-28 01:17:51,691 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2022-04-28 01:17:51,722 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L9-2 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L12-2 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L56 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L33-1 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L33-1 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-04-28 01:17:51,723 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2022-04-28 01:17:51,724 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2022-04-28 01:17:51,724 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-28 01:17:51,724 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-28 01:17:51,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 01:17:51 BasicIcfg [2022-04-28 01:17:51,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-28 01:17:51,725 INFO L158 Benchmark]: Toolchain (without parser) took 153930.72ms. Allocated memory was 164.6MB in the beginning and 210.8MB in the end (delta: 46.1MB). Free memory was 107.0MB in the beginning and 157.8MB in the end (delta: -50.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 01:17:51,725 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 164.6MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 01:17:51,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.30ms. Allocated memory was 164.6MB in the beginning and 210.8MB in the end (delta: 46.1MB). Free memory was 106.7MB in the beginning and 182.5MB in the end (delta: -75.8MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. [2022-04-28 01:17:51,725 INFO L158 Benchmark]: Boogie Preprocessor took 19.06ms. Allocated memory is still 210.8MB. Free memory was 182.5MB in the beginning and 180.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-28 01:17:51,725 INFO L158 Benchmark]: RCFGBuilder took 309.25ms. Allocated memory is still 210.8MB. Free memory was 180.5MB in the beginning and 168.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-28 01:17:51,726 INFO L158 Benchmark]: IcfgTransformer took 32.15ms. Allocated memory is still 210.8MB. Free memory was 168.0MB in the beginning and 165.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-28 01:17:51,726 INFO L158 Benchmark]: TraceAbstraction took 153318.17ms. Allocated memory is still 210.8MB. Free memory was 165.3MB in the beginning and 158.3MB in the end (delta: 7.0MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. [2022-04-28 01:17:51,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 164.6MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 231.30ms. Allocated memory was 164.6MB in the beginning and 210.8MB in the end (delta: 46.1MB). Free memory was 106.7MB in the beginning and 182.5MB in the end (delta: -75.8MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.06ms. Allocated memory is still 210.8MB. Free memory was 182.5MB in the beginning and 180.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 309.25ms. Allocated memory is still 210.8MB. Free memory was 180.5MB in the beginning and 168.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgTransformer took 32.15ms. Allocated memory is still 210.8MB. Free memory was 168.0MB in the beginning and 165.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 153318.17ms. Allocated memory is still 210.8MB. Free memory was 165.3MB in the beginning and 158.3MB in the end (delta: 7.0MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int counter = 0; VAL [\old(counter)=7, counter=0] [L21] int x, y; [L22] long long a, b, p, q; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] CALL assume_abort_if_not(y >= 1) VAL [\old(cond)=1, \old(counter)=0, counter=0] [L9] COND FALSE !(!cond) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=0] [L26] RET assume_abort_if_not(y >= 1) VAL [\old(counter)=0, counter=0, x=4, y=4] [L28] a = x [L29] b = y [L30] p = 1 [L31] q = 0 VAL [\old(counter)=0, a=4, b=4, counter=0, p=1, q=0, x=4, y=4] [L33] EXPR counter++ VAL [\old(counter)=0, a=4, b=4, counter=1, counter++=0, p=1, q=0, x=4, y=4] [L33] COND TRUE counter++<2 [L34] CALL __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [\old(cond)=1, \old(counter)=0, counter=1] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=1] [L34] RET __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [\old(counter)=0, a=4, b=4, counter=1, p=1, q=0, x=4, y=4] [L36] COND FALSE !(!(a != 0 && b != 0)) VAL [\old(counter)=0, a=4, b=4, counter=1, p=1, q=0, x=4, y=4] [L39] COND TRUE a % 2 == 0 && b % 2 == 0 [L40] a = a / 2 [L41] b = b / 2 [L42] p = 4 * p VAL [\old(counter)=0, a=2, b=2, counter=1, p=4, q=0, x=4, y=4] [L33] EXPR counter++ VAL [\old(counter)=0, a=2, b=2, counter=2, counter++=1, p=4, q=0, x=4, y=4] [L33] COND TRUE counter++<2 [L34] CALL __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [\old(cond)=1, \old(counter)=0, counter=2] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=2] [L34] RET __VERIFIER_assert(q + a * b * p == (long long) x * y) VAL [\old(counter)=0, a=2, b=2, counter=2, p=4, q=0, x=4, y=4] [L36] COND FALSE !(!(a != 0 && b != 0)) VAL [\old(counter)=0, a=2, b=2, counter=2, p=4, q=0, x=4, y=4] [L39] COND TRUE a % 2 == 0 && b % 2 == 0 [L40] a = a / 2 [L41] b = b / 2 [L42] p = 4 * p VAL [\old(counter)=0, a=1, b=1, counter=2, p=16, q=0, x=4, y=4] [L33] EXPR counter++ VAL [\old(counter)=0, a=1, b=1, counter=3, counter++=2, p=16, q=0, x=4, y=4] [L33] COND FALSE !(counter++<2) [L56] CALL __VERIFIER_assert(q == (long long) x * y) VAL [\old(cond)=0, \old(counter)=0, counter=3] [L12] COND TRUE !(cond) VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=3] [L14] reach_error() VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 153.3s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 208 mSDsluCounter, 745 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 551 mSDsCounter, 148 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 782 IncrementalHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 148 mSolverCounterUnsat, 194 mSDtfsCounter, 782 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 176 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=6, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 43 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 139.1s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 1056 SizeOfPredicates, 20 NumberOfNonLiveVariables, 597 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 16/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-28 01:17:51,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...