/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/ps6-ll_unwindbound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 04:39:04,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 04:39:04,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 04:39:04,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-15 04:39:04,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-15 04:39:04,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-15 04:39:04,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-15 04:39:04,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-15 04:39:04,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-15 04:39:04,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-15 04:39:04,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-15 04:39:04,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-15 04:39:04,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-15 04:39:04,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-15 04:39:04,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-15 04:39:04,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-15 04:39:04,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-15 04:39:04,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-15 04:39:04,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-15 04:39:04,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-15 04:39:04,929 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-15 04:39:04,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-15 04:39:04,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-15 04:39:04,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-15 04:39:04,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-15 04:39:04,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-15 04:39:04,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 04:39:04,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 04:39:04,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 04:39:04,957 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-15 04:39:04,986 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 04:39:04,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 04:39:04,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-15 04:39:04,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-15 04:39:04,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-15 04:39:04,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-15 04:39:04,988 INFO L138 SettingsManager]: * Use SBE=true [2022-04-15 04:39:04,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 04:39:04,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 04:39:04,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 04:39:04,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 04:39:04,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 04:39:04,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 04:39:04,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 04:39:04,990 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 04:39:04,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 04:39:04,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 04:39:04,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 04:39:04,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 04:39:04,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 04:39:04,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 04:39:04,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-15 04:39:04,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-15 04:39:04,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-15 04:39:04,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-15 04:39:04,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 04:39:04,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-15 04:39:04,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-15 04:39:04,994 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-15 04:39:04,994 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 04:39:05,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 04:39:05,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 04:39:05,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 04:39:05,249 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 04:39:05,251 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 04:39:05,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps6-ll_unwindbound1.c [2022-04-15 04:39:05,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76886983/5713378f9d8149f584282c3d3816e2d5/FLAGfb1f022a8 [2022-04-15 04:39:05,699 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 04:39:05,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps6-ll_unwindbound1.c [2022-04-15 04:39:05,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76886983/5713378f9d8149f584282c3d3816e2d5/FLAGfb1f022a8 [2022-04-15 04:39:06,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76886983/5713378f9d8149f584282c3d3816e2d5 [2022-04-15 04:39:06,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 04:39:06,109 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-15 04:39:06,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 04:39:06,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 04:39:06,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 04:39:06,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 04:39:06" (1/1) ... [2022-04-15 04:39:06,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ffadac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:39:06, skipping insertion in model container [2022-04-15 04:39:06,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 04:39:06" (1/1) ... [2022-04-15 04:39:06,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 04:39:06,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 04:39:06,293 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/ps6-ll_unwindbound1.c[458,471] [2022-04-15 04:39:06,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 04:39:06,343 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 04:39:06,357 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/ps6-ll_unwindbound1.c[458,471] [2022-04-15 04:39:06,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 04:39:06,387 INFO L208 MainTranslator]: Completed translation [2022-04-15 04:39:06,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:39:06 WrapperNode [2022-04-15 04:39:06,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 04:39:06,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 04:39:06,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 04:39:06,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 04:39:06,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:39:06" (1/1) ... [2022-04-15 04:39:06,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:39:06" (1/1) ... [2022-04-15 04:39:06,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:39:06" (1/1) ... [2022-04-15 04:39:06,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:39:06" (1/1) ... [2022-04-15 04:39:06,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:39:06" (1/1) ... [2022-04-15 04:39:06,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:39:06" (1/1) ... [2022-04-15 04:39:06,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:39:06" (1/1) ... [2022-04-15 04:39:06,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 04:39:06,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 04:39:06,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 04:39:06,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 04:39:06,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:39:06" (1/1) ... [2022-04-15 04:39:06,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 04:39:06,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 04:39:06,468 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) [2022-04-15 04:39:06,483 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 [2022-04-15 04:39:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 04:39:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 04:39:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 04:39:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-15 04:39:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 04:39:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 04:39:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 04:39:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 04:39:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 04:39:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 04:39:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2022-04-15 04:39:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-15 04:39:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 04:39:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 04:39:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 04:39:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 04:39:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 04:39:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 04:39:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 04:39:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 04:39:06,558 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 04:39:06,560 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 04:39:06,752 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 04:39:06,758 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 04:39:06,758 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 04:39:06,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 04:39:06 BoogieIcfgContainer [2022-04-15 04:39:06,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 04:39:06,760 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-15 04:39:06,760 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-15 04:39:06,761 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-15 04:39:06,763 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 04:39:06" (1/1) ... [2022-04-15 04:39:06,765 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-15 04:39:06,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 04:39:06 BasicIcfg [2022-04-15 04:39:06,785 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-15 04:39:06,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 04:39:06,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 04:39:06,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 04:39:06,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 04:39:06" (1/4) ... [2022-04-15 04:39:06,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db7de10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 04:39:06, skipping insertion in model container [2022-04-15 04:39:06,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 04:39:06" (2/4) ... [2022-04-15 04:39:06,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db7de10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 04:39:06, skipping insertion in model container [2022-04-15 04:39:06,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 04:39:06" (3/4) ... [2022-04-15 04:39:06,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db7de10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 04:39:06, skipping insertion in model container [2022-04-15 04:39:06,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 04:39:06" (4/4) ... [2022-04-15 04:39:06,792 INFO L111 eAbstractionObserver]: Analyzing ICFG ps6-ll_unwindbound1.cqvasr [2022-04-15 04:39:06,796 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-15 04:39:06,796 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 04:39:06,830 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 04:39:06,836 INFO L340 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 [2022-04-15 04:39:06,836 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 04:39:06,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-15 04:39:06,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-15 04:39:06,872 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 04:39:06,872 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 04:39:06,872 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 04:39:06,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 04:39:06,877 INFO L85 PathProgramCache]: Analyzing trace with hash 843387237, now seen corresponding path program 1 times [2022-04-15 04:39:06,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 04:39:06,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837583584] [2022-04-15 04:39:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:39:06,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 04:39:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:39:07,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 04:39:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:39:07,112 INFO L290 TraceCheckUtils]: 0: Hoare triple {41#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {32#true} is VALID [2022-04-15 04:39:07,116 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-15 04:39:07,117 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {32#true} {32#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-15 04:39:07,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-15 04:39:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:39:07,125 INFO L290 TraceCheckUtils]: 0: Hoare triple {32#true} [72] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {32#true} is VALID [2022-04-15 04:39:07,126 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-15 04:39:07,126 INFO L290 TraceCheckUtils]: 2: Hoare triple {33#false} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-15 04:39:07,126 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {33#false} {32#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {33#false} is VALID [2022-04-15 04:39:07,127 INFO L272 TraceCheckUtils]: 0: Hoare triple {32#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {41#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 04:39:07,128 INFO L290 TraceCheckUtils]: 1: Hoare triple {41#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {32#true} is VALID [2022-04-15 04:39:07,128 INFO L290 TraceCheckUtils]: 2: Hoare triple {32#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-15 04:39:07,128 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {32#true} {32#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-15 04:39:07,129 INFO L272 TraceCheckUtils]: 4: Hoare triple {32#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-15 04:39:07,129 INFO L290 TraceCheckUtils]: 5: Hoare triple {32#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {32#true} is VALID [2022-04-15 04:39:07,129 INFO L272 TraceCheckUtils]: 6: Hoare triple {32#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {32#true} is VALID [2022-04-15 04:39:07,129 INFO L290 TraceCheckUtils]: 7: Hoare triple {32#true} [72] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {32#true} is VALID [2022-04-15 04:39:07,130 INFO L290 TraceCheckUtils]: 8: Hoare triple {32#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-15 04:39:07,130 INFO L290 TraceCheckUtils]: 9: Hoare triple {33#false} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-15 04:39:07,131 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {33#false} {32#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {33#false} is VALID [2022-04-15 04:39:07,131 INFO L290 TraceCheckUtils]: 11: Hoare triple {33#false} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {33#false} is VALID [2022-04-15 04:39:07,131 INFO L290 TraceCheckUtils]: 12: Hoare triple {33#false} [73] L28-3-->L28-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-15 04:39:07,131 INFO L272 TraceCheckUtils]: 13: Hoare triple {33#false} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (- 1)) (* v_main_~y~0_9 v_main_~y~0_9) (* v_main_~x~0_8 12) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 (* (- 2) v_main_~y~0_9))))) v_main_~y~0_9) (* (- 1) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 5)) v_main_~y~0_9)))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {33#false} is VALID [2022-04-15 04:39:07,132 INFO L290 TraceCheckUtils]: 14: Hoare triple {33#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {33#false} is VALID [2022-04-15 04:39:07,132 INFO L290 TraceCheckUtils]: 15: Hoare triple {33#false} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-15 04:39:07,132 INFO L290 TraceCheckUtils]: 16: Hoare triple {33#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-15 04:39:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 04:39:07,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 04:39:07,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837583584] [2022-04-15 04:39:07,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837583584] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 04:39:07,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 04:39:07,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 04:39:07,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576887609] [2022-04-15 04:39:07,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 04:39:07,141 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 [2022-04-15 04:39:07,145 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 04:39:07,147 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) [2022-04-15 04:39:07,176 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:39:07,177 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-15 04:39:07,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 04:39:07,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-15 04:39:07,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 04:39:07,198 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:39:07,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:07,541 INFO L93 Difference]: Finished difference Result 50 states and 65 transitions. [2022-04-15 04:39:07,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-15 04:39:07,541 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 [2022-04-15 04:39:07,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 04:39:07,543 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) [2022-04-15 04:39:07,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2022-04-15 04:39:07,553 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) [2022-04-15 04:39:07,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2022-04-15 04:39:07,560 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 65 transitions. [2022-04-15 04:39:07,643 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:39:07,650 INFO L225 Difference]: With dead ends: 50 [2022-04-15 04:39:07,651 INFO L226 Difference]: Without dead ends: 25 [2022-04-15 04:39:07,653 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 04:39:07,662 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-15 04:39:07,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 34 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-15 04:39:07,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-04-15 04:39:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-04-15 04:39:07,686 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 04:39:07,687 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:39:07,688 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:39:07,688 INFO L87 Difference]: Start difference. First operand 25 states. Second operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:39:07,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:07,692 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-04-15 04:39:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-15 04:39:07,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:39:07,693 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:39:07,693 INFO L74 IsIncluded]: Start isIncluded. First operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 25 states. [2022-04-15 04:39:07,694 INFO L87 Difference]: Start difference. First operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 25 states. [2022-04-15 04:39:07,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:07,697 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-04-15 04:39:07,697 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-15 04:39:07,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:39:07,698 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:39:07,698 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 04:39:07,698 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 04:39:07,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:39:07,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-04-15 04:39:07,702 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 17 [2022-04-15 04:39:07,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 04:39:07,702 INFO L478 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-04-15 04:39:07,702 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:39:07,702 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-04-15 04:39:07,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-15 04:39:07,703 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 04:39:07,703 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 04:39:07,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 04:39:07,704 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 04:39:07,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 04:39:07,704 INFO L85 PathProgramCache]: Analyzing trace with hash 208087835, now seen corresponding path program 1 times [2022-04-15 04:39:07,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 04:39:07,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672975114] [2022-04-15 04:39:07,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:39:07,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 04:39:07,724 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-15 04:39:07,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069123735] [2022-04-15 04:39:07,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:39:07,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 04:39:07,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 04:39:07,726 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) [2022-04-15 04:39:07,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-15 04:39:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:39:07,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-15 04:39:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:39:07,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 04:39:07,970 INFO L272 TraceCheckUtils]: 0: Hoare triple {196#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {196#true} is VALID [2022-04-15 04:39:07,972 INFO L290 TraceCheckUtils]: 1: Hoare triple {196#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {204#(<= ~counter~0 0)} is VALID [2022-04-15 04:39:07,972 INFO L290 TraceCheckUtils]: 2: Hoare triple {204#(<= ~counter~0 0)} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {204#(<= ~counter~0 0)} is VALID [2022-04-15 04:39:07,973 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {204#(<= ~counter~0 0)} {196#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {204#(<= ~counter~0 0)} is VALID [2022-04-15 04:39:07,973 INFO L272 TraceCheckUtils]: 4: Hoare triple {204#(<= ~counter~0 0)} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {204#(<= ~counter~0 0)} is VALID [2022-04-15 04:39:07,974 INFO L290 TraceCheckUtils]: 5: Hoare triple {204#(<= ~counter~0 0)} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {204#(<= ~counter~0 0)} is VALID [2022-04-15 04:39:07,976 INFO L272 TraceCheckUtils]: 6: Hoare triple {204#(<= ~counter~0 0)} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {204#(<= ~counter~0 0)} is VALID [2022-04-15 04:39:07,976 INFO L290 TraceCheckUtils]: 7: Hoare triple {204#(<= ~counter~0 0)} [72] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {204#(<= ~counter~0 0)} is VALID [2022-04-15 04:39:07,976 INFO L290 TraceCheckUtils]: 8: Hoare triple {204#(<= ~counter~0 0)} [76] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {204#(<= ~counter~0 0)} is VALID [2022-04-15 04:39:07,977 INFO L290 TraceCheckUtils]: 9: Hoare triple {204#(<= ~counter~0 0)} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {204#(<= ~counter~0 0)} is VALID [2022-04-15 04:39:07,978 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {204#(<= ~counter~0 0)} {204#(<= ~counter~0 0)} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {204#(<= ~counter~0 0)} is VALID [2022-04-15 04:39:07,978 INFO L290 TraceCheckUtils]: 11: Hoare triple {204#(<= ~counter~0 0)} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {204#(<= ~counter~0 0)} is VALID [2022-04-15 04:39:07,980 INFO L290 TraceCheckUtils]: 12: Hoare triple {204#(<= ~counter~0 0)} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {238#(<= |main_#t~post5| 0)} is VALID [2022-04-15 04:39:07,981 INFO L290 TraceCheckUtils]: 13: Hoare triple {238#(<= |main_#t~post5| 0)} [78] L28-1-->L28-4: Formula: (not (< |v_main_#t~post5_3| 1)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {197#false} is VALID [2022-04-15 04:39:07,982 INFO L272 TraceCheckUtils]: 14: Hoare triple {197#false} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (- 1)) (* v_main_~y~0_9 v_main_~y~0_9) (* v_main_~x~0_8 12) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 (* (- 2) v_main_~y~0_9))))) v_main_~y~0_9) (* (- 1) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 5)) v_main_~y~0_9)))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {197#false} is VALID [2022-04-15 04:39:07,982 INFO L290 TraceCheckUtils]: 15: Hoare triple {197#false} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {197#false} is VALID [2022-04-15 04:39:07,982 INFO L290 TraceCheckUtils]: 16: Hoare triple {197#false} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {197#false} is VALID [2022-04-15 04:39:07,983 INFO L290 TraceCheckUtils]: 17: Hoare triple {197#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {197#false} is VALID [2022-04-15 04:39:07,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 04:39:07,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-15 04:39:07,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 04:39:07,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672975114] [2022-04-15 04:39:07,984 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-15 04:39:07,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069123735] [2022-04-15 04:39:07,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069123735] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 04:39:07,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 04:39:07,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 04:39:07,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906964554] [2022-04-15 04:39:07,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 04:39:07,992 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 [2022-04-15 04:39:07,993 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 04:39:07,993 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) [2022-04-15 04:39:08,032 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:39:08,032 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-15 04:39:08,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 04:39:08,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-15 04:39:08,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 04:39:08,035 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 04:39:08,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:08,138 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-04-15 04:39:08,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-15 04:39:08,138 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 [2022-04-15 04:39:08,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 04:39:08,139 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) [2022-04-15 04:39:08,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-04-15 04:39:08,141 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) [2022-04-15 04:39:08,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-04-15 04:39:08,144 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 38 transitions. [2022-04-15 04:39:08,193 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:39:08,196 INFO L225 Difference]: With dead ends: 34 [2022-04-15 04:39:08,196 INFO L226 Difference]: Without dead ends: 26 [2022-04-15 04:39:08,197 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 04:39:08,199 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 04:39:08,200 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 04:39:08,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-04-15 04:39:08,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-04-15 04:39:08,211 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 04:39:08,212 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:39:08,212 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:39:08,212 INFO L87 Difference]: Start difference. First operand 26 states. Second operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:39:08,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:08,218 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-15 04:39:08,218 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-15 04:39:08,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:39:08,220 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:39:08,220 INFO L74 IsIncluded]: Start isIncluded. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 26 states. [2022-04-15 04:39:08,221 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 26 states. [2022-04-15 04:39:08,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:08,225 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-15 04:39:08,225 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-15 04:39:08,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:39:08,226 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:39:08,227 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 04:39:08,227 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 04:39:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 04:39:08,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-04-15 04:39:08,233 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 18 [2022-04-15 04:39:08,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 04:39:08,233 INFO L478 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-04-15 04:39:08,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 04:39:08,233 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-15 04:39:08,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-15 04:39:08,235 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 04:39:08,235 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 04:39:08,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-15 04:39:08,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 04:39:08,452 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 04:39:08,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 04:39:08,453 INFO L85 PathProgramCache]: Analyzing trace with hash 209190102, now seen corresponding path program 1 times [2022-04-15 04:39:08,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 04:39:08,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986047595] [2022-04-15 04:39:08,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:39:08,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 04:39:08,476 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-15 04:39:08,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063139959] [2022-04-15 04:39:08,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:39:08,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 04:39:08,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 04:39:08,478 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) [2022-04-15 04:39:08,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-15 04:39:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:39:08,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-15 04:39:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:39:08,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 04:39:08,656 INFO L272 TraceCheckUtils]: 0: Hoare triple {392#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {392#true} is VALID [2022-04-15 04:39:08,657 INFO L290 TraceCheckUtils]: 1: Hoare triple {392#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {392#true} is VALID [2022-04-15 04:39:08,657 INFO L290 TraceCheckUtils]: 2: Hoare triple {392#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {392#true} is VALID [2022-04-15 04:39:08,657 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {392#true} {392#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {392#true} is VALID [2022-04-15 04:39:08,657 INFO L272 TraceCheckUtils]: 4: Hoare triple {392#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {392#true} is VALID [2022-04-15 04:39:08,658 INFO L290 TraceCheckUtils]: 5: Hoare triple {392#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {392#true} is VALID [2022-04-15 04:39:08,658 INFO L272 TraceCheckUtils]: 6: Hoare triple {392#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {392#true} is VALID [2022-04-15 04:39:08,658 INFO L290 TraceCheckUtils]: 7: Hoare triple {392#true} [72] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {392#true} is VALID [2022-04-15 04:39:08,658 INFO L290 TraceCheckUtils]: 8: Hoare triple {392#true} [76] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {392#true} is VALID [2022-04-15 04:39:08,659 INFO L290 TraceCheckUtils]: 9: Hoare triple {392#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {392#true} is VALID [2022-04-15 04:39:08,659 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {392#true} {392#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {392#true} is VALID [2022-04-15 04:39:08,662 INFO L290 TraceCheckUtils]: 11: Hoare triple {392#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {430#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:39:08,663 INFO L290 TraceCheckUtils]: 12: Hoare triple {430#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {430#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:39:08,664 INFO L290 TraceCheckUtils]: 13: Hoare triple {430#(and (= main_~x~0 0) (= main_~y~0 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 1) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {430#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:39:08,665 INFO L272 TraceCheckUtils]: 14: Hoare triple {430#(and (= main_~x~0 0) (= main_~y~0 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* (- 2) v_main_~y~0_8)))))) (* (- 1) (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 5))) v_main_~y~0_8)) (* v_main_~x~0_7 12) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8))) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {440#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 04:39:08,665 INFO L290 TraceCheckUtils]: 15: Hoare triple {440#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {444#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 04:39:08,666 INFO L290 TraceCheckUtils]: 16: Hoare triple {444#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {393#false} is VALID [2022-04-15 04:39:08,666 INFO L290 TraceCheckUtils]: 17: Hoare triple {393#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {393#false} is VALID [2022-04-15 04:39:08,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 04:39:08,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-15 04:39:08,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 04:39:08,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986047595] [2022-04-15 04:39:08,667 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-15 04:39:08,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063139959] [2022-04-15 04:39:08,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063139959] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 04:39:08,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 04:39:08,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-15 04:39:08,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812834083] [2022-04-15 04:39:08,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 04:39:08,669 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 [2022-04-15 04:39:08,669 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 04:39:08,669 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) [2022-04-15 04:39:08,685 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:39:08,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-15 04:39:08,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 04:39:08,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-15 04:39:08,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-15 04:39:08,686 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:39:08,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:08,854 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-04-15 04:39:08,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-15 04:39:08,855 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 [2022-04-15 04:39:08,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 04:39:08,855 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) [2022-04-15 04:39:08,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2022-04-15 04:39:08,858 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) [2022-04-15 04:39:08,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2022-04-15 04:39:08,859 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2022-04-15 04:39:08,905 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:39:08,907 INFO L225 Difference]: With dead ends: 36 [2022-04-15 04:39:08,907 INFO L226 Difference]: Without dead ends: 32 [2022-04-15 04:39:08,907 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-15 04:39:08,908 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 6 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 04:39:08,908 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 87 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 04:39:08,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-04-15 04:39:08,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-04-15 04:39:08,916 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 04:39:08,917 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 04:39:08,917 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 04:39:08,917 INFO L87 Difference]: Start difference. First operand 32 states. Second operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 04:39:08,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:08,919 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-04-15 04:39:08,919 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-15 04:39:08,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:39:08,920 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:39:08,920 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 32 states. [2022-04-15 04:39:08,920 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 32 states. [2022-04-15 04:39:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:08,922 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-04-15 04:39:08,922 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-15 04:39:08,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:39:08,923 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:39:08,923 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 04:39:08,923 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 04:39:08,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 04:39:08,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-04-15 04:39:08,925 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 18 [2022-04-15 04:39:08,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 04:39:08,925 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-04-15 04:39:08,925 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-15 04:39:08,925 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-04-15 04:39:08,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-15 04:39:08,926 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 04:39:08,926 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 04:39:08,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-15 04:39:09,140 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-15 04:39:09,141 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 04:39:09,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 04:39:09,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1223799235, now seen corresponding path program 1 times [2022-04-15 04:39:09,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 04:39:09,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777479718] [2022-04-15 04:39:09,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:39:09,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 04:39:09,170 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-15 04:39:09,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1543120543] [2022-04-15 04:39:09,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:39:09,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 04:39:09,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 04:39:09,180 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) [2022-04-15 04:39:09,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-15 04:39:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:39:09,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-15 04:39:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 04:39:09,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 04:39:09,438 INFO L272 TraceCheckUtils]: 0: Hoare triple {614#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,438 INFO L290 TraceCheckUtils]: 1: Hoare triple {614#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {614#true} is VALID [2022-04-15 04:39:09,438 INFO L290 TraceCheckUtils]: 2: Hoare triple {614#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,438 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {614#true} {614#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,439 INFO L272 TraceCheckUtils]: 4: Hoare triple {614#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,439 INFO L290 TraceCheckUtils]: 5: Hoare triple {614#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {614#true} is VALID [2022-04-15 04:39:09,439 INFO L272 TraceCheckUtils]: 6: Hoare triple {614#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {614#true} is VALID [2022-04-15 04:39:09,439 INFO L290 TraceCheckUtils]: 7: Hoare triple {614#true} [72] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {614#true} is VALID [2022-04-15 04:39:09,439 INFO L290 TraceCheckUtils]: 8: Hoare triple {614#true} [76] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,439 INFO L290 TraceCheckUtils]: 9: Hoare triple {614#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,440 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {614#true} {614#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {614#true} is VALID [2022-04-15 04:39:09,443 INFO L290 TraceCheckUtils]: 11: Hoare triple {614#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {652#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:39:09,447 INFO L290 TraceCheckUtils]: 12: Hoare triple {652#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {652#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:39:09,448 INFO L290 TraceCheckUtils]: 13: Hoare triple {652#(and (= main_~x~0 0) (= main_~y~0 0))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 1) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {652#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:39:09,448 INFO L272 TraceCheckUtils]: 14: Hoare triple {652#(and (= main_~x~0 0) (= main_~y~0 0))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* (- 2) v_main_~y~0_8)))))) (* (- 1) (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 5))) v_main_~y~0_8)) (* v_main_~x~0_7 12) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8))) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {614#true} is VALID [2022-04-15 04:39:09,448 INFO L290 TraceCheckUtils]: 15: Hoare triple {614#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {614#true} is VALID [2022-04-15 04:39:09,448 INFO L290 TraceCheckUtils]: 16: Hoare triple {614#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,449 INFO L290 TraceCheckUtils]: 17: Hoare triple {614#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,449 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {614#true} {652#(and (= main_~x~0 0) (= main_~y~0 0))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* (- 2) v_main_~y~0_8)))))) (* (- 1) (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 5))) v_main_~y~0_8)) (* v_main_~x~0_7 12) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8))) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {652#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-15 04:39:09,450 INFO L290 TraceCheckUtils]: 19: Hoare triple {652#(and (= main_~x~0 0) (= main_~y~0 0))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= v_main_~x~0_5 (+ (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_6)) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {677#(and (= (+ (- 1) main_~y~0) 0) (= main_~x~0 (* main_~y~0 (* (* main_~y~0 (* main_~y~0 main_~y~0)) main_~y~0))))} is VALID [2022-04-15 04:39:09,451 INFO L290 TraceCheckUtils]: 20: Hoare triple {677#(and (= (+ (- 1) main_~y~0) 0) (= main_~x~0 (* main_~y~0 (* (* main_~y~0 (* main_~y~0 main_~y~0)) main_~y~0))))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {677#(and (= (+ (- 1) main_~y~0) 0) (= main_~x~0 (* main_~y~0 (* (* main_~y~0 (* main_~y~0 main_~y~0)) main_~y~0))))} is VALID [2022-04-15 04:39:09,451 INFO L290 TraceCheckUtils]: 21: Hoare triple {677#(and (= (+ (- 1) main_~y~0) 0) (= main_~x~0 (* main_~y~0 (* (* main_~y~0 (* main_~y~0 main_~y~0)) main_~y~0))))} [78] L28-1-->L28-4: Formula: (not (< |v_main_#t~post5_3| 1)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {677#(and (= (+ (- 1) main_~y~0) 0) (= main_~x~0 (* main_~y~0 (* (* main_~y~0 (* main_~y~0 main_~y~0)) main_~y~0))))} is VALID [2022-04-15 04:39:09,452 INFO L272 TraceCheckUtils]: 22: Hoare triple {677#(and (= (+ (- 1) main_~y~0) 0) (= main_~x~0 (* main_~y~0 (* (* main_~y~0 (* main_~y~0 main_~y~0)) main_~y~0))))} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (- 1)) (* v_main_~y~0_9 v_main_~y~0_9) (* v_main_~x~0_8 12) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 (* (- 2) v_main_~y~0_9))))) v_main_~y~0_9) (* (- 1) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 5)) v_main_~y~0_9)))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {687#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 04:39:09,453 INFO L290 TraceCheckUtils]: 23: Hoare triple {687#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {691#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 04:39:09,453 INFO L290 TraceCheckUtils]: 24: Hoare triple {691#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {615#false} is VALID [2022-04-15 04:39:09,453 INFO L290 TraceCheckUtils]: 25: Hoare triple {615#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {615#false} is VALID [2022-04-15 04:39:09,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 04:39:09,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-15 04:39:09,631 INFO L290 TraceCheckUtils]: 25: Hoare triple {615#false} [90] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {615#false} is VALID [2022-04-15 04:39:09,632 INFO L290 TraceCheckUtils]: 24: Hoare triple {691#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {615#false} is VALID [2022-04-15 04:39:09,632 INFO L290 TraceCheckUtils]: 23: Hoare triple {687#(<= 1 |__VERIFIER_assert_#in~cond|)} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {691#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 04:39:09,633 INFO L272 TraceCheckUtils]: 22: Hoare triple {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} [77] L28-4-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 6))) v_main_~y~0_9)) (- 1)) (* v_main_~y~0_9 v_main_~y~0_9) (* v_main_~x~0_8 12) (* (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 (* v_main_~y~0_9 (* (- 2) v_main_~y~0_9))))) v_main_~y~0_9) (* (- 1) (* v_main_~y~0_9 (* (* v_main_~y~0_9 (* v_main_~y~0_9 5)) v_main_~y~0_9)))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {687#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 04:39:09,634 INFO L290 TraceCheckUtils]: 21: Hoare triple {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} [78] L28-1-->L28-4: Formula: (not (< |v_main_#t~post5_3| 1)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:39:09,635 INFO L290 TraceCheckUtils]: 20: Hoare triple {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:39:09,764 INFO L290 TraceCheckUtils]: 19: Hoare triple {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} [88] L29-1-->L28-3: Formula: (and (< v_main_~c~0_5 v_main_~k~0_7) (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (= v_main_~x~0_5 (+ (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 (* v_main_~y~0_6 v_main_~y~0_6)))) v_main_~x~0_6)) (= v_main_~y~0_6 (+ v_main_~y~0_7 1))) InVars {main_~y~0=v_main_~y~0_7, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_7} OutVars{main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_7} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:39:09,765 INFO L284 TraceCheckUtils]: 18: Hoare quadruple {614#true} {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} [96] __VERIFIER_assertEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* (- 2) v_main_~y~0_8)))))) (* (- 1) (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 5))) v_main_~y~0_8)) (* v_main_~x~0_7 12) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8))) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:39:09,765 INFO L290 TraceCheckUtils]: 17: Hoare triple {614#true} [92] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,765 INFO L290 TraceCheckUtils]: 16: Hoare triple {614#true} [86] L10-->L10-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,765 INFO L290 TraceCheckUtils]: 15: Hoare triple {614#true} [82] __VERIFIER_assertENTRY-->L10: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {614#true} is VALID [2022-04-15 04:39:09,766 INFO L272 TraceCheckUtils]: 14: Hoare triple {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} [83] L29-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 (* (- 2) v_main_~y~0_8)))))) (* (- 1) (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 5))) v_main_~y~0_8)) (* v_main_~x~0_7 12) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 (* v_main_~y~0_8 (* v_main_~y~0_8 6))) v_main_~y~0_8))) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {614#true} is VALID [2022-04-15 04:39:09,766 INFO L290 TraceCheckUtils]: 13: Hoare triple {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} [79] L28-1-->L29: Formula: (< |v_main_#t~post5_5| 1) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:39:09,767 INFO L290 TraceCheckUtils]: 12: Hoare triple {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} [74] L28-3-->L28-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:39:09,767 INFO L290 TraceCheckUtils]: 11: Hoare triple {614#true} [71] L22-1-->L28-3: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_4 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {707#(= (+ (* 2 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 6 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0 main_~y~0)) (* 5 (* main_~y~0 main_~y~0 main_~y~0 main_~y~0))) (+ (* main_~x~0 12) (* main_~y~0 main_~y~0)))} is VALID [2022-04-15 04:39:09,767 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {614#true} {614#true} [94] assume_abort_if_notEXIT-->L22-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {614#true} is VALID [2022-04-15 04:39:09,768 INFO L290 TraceCheckUtils]: 9: Hoare triple {614#true} [80] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,768 INFO L290 TraceCheckUtils]: 8: Hoare triple {614#true} [76] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,768 INFO L290 TraceCheckUtils]: 7: Hoare triple {614#true} [72] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {614#true} is VALID [2022-04-15 04:39:09,768 INFO L272 TraceCheckUtils]: 6: Hoare triple {614#true} [70] L22-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= v_main_~k~0_8 256) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {614#true} is VALID [2022-04-15 04:39:09,768 INFO L290 TraceCheckUtils]: 5: Hoare triple {614#true} [68] mainENTRY-->L22: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {614#true} is VALID [2022-04-15 04:39:09,768 INFO L272 TraceCheckUtils]: 4: Hoare triple {614#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,769 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {614#true} {614#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,769 INFO L290 TraceCheckUtils]: 2: Hoare triple {614#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,769 INFO L290 TraceCheckUtils]: 1: Hoare triple {614#true} [66] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {614#true} is VALID [2022-04-15 04:39:09,769 INFO L272 TraceCheckUtils]: 0: Hoare triple {614#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {614#true} is VALID [2022-04-15 04:39:09,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-15 04:39:09,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 04:39:09,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777479718] [2022-04-15 04:39:09,770 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-15 04:39:09,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543120543] [2022-04-15 04:39:09,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543120543] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-15 04:39:09,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-15 04:39:09,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-04-15 04:39:09,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926582655] [2022-04-15 04:39:09,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 04:39:09,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-04-15 04:39:09,771 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 04:39:09,771 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-15 04:39:09,923 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:39:09,924 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-15 04:39:09,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 04:39:09,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-15 04:39:09,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-15 04:39:09,925 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-15 04:39:10,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:10,055 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-04-15 04:39:10,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-15 04:39:10,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-04-15 04:39:10,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 04:39:10,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-15 04:39:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2022-04-15 04:39:10,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-15 04:39:10,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2022-04-15 04:39:10,058 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 32 transitions. [2022-04-15 04:39:10,136 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 04:39:10,138 INFO L225 Difference]: With dead ends: 38 [2022-04-15 04:39:10,138 INFO L226 Difference]: Without dead ends: 34 [2022-04-15 04:39:10,138 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-15 04:39:10,139 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 04:39:10,140 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 73 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 04:39:10,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-04-15 04:39:10,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-04-15 04:39:10,152 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 04:39:10,152 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand has 34 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 04:39:10,152 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand has 34 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 04:39:10,152 INFO L87 Difference]: Start difference. First operand 34 states. Second operand has 34 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 04:39:10,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:10,154 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-04-15 04:39:10,154 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-04-15 04:39:10,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:39:10,155 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:39:10,155 INFO L74 IsIncluded]: Start isIncluded. First operand has 34 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 34 states. [2022-04-15 04:39:10,155 INFO L87 Difference]: Start difference. First operand has 34 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 34 states. [2022-04-15 04:39:10,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 04:39:10,157 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-04-15 04:39:10,157 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-04-15 04:39:10,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 04:39:10,157 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 04:39:10,157 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 04:39:10,158 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 04:39:10,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 04:39:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-04-15 04:39:10,159 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 26 [2022-04-15 04:39:10,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 04:39:10,159 INFO L478 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-04-15 04:39:10,160 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-15 04:39:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-04-15 04:39:10,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-15 04:39:10,160 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 04:39:10,161 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 04:39:10,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-15 04:39:10,375 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 04:39:10,376 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 04:39:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 04:39:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1100412105, now seen corresponding path program 1 times [2022-04-15 04:39:10,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 04:39:10,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112149605] [2022-04-15 04:39:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:39:10,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 04:39:10,392 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-15 04:39:10,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805336976] [2022-04-15 04:39:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 04:39:10,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 04:39:10,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 04:39:10,393 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) [2022-04-15 04:39:10,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-15 04:39:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-15 04:39:10,438 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-15 04:39:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-15 04:39:10,466 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-15 04:39:10,467 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-15 04:39:10,468 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-15 04:39:10,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-04-15 04:39:10,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 04:39:10,694 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-04-15 04:39:10,697 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-15 04:39:10,733 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-15 04:39:10,733 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-15 04:39:10,733 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L10-2 has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2022-04-15 04:39:10,734 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: L28-3 has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: L28-3 has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: L28-4 has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2022-04-15 04:39:10,735 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-15 04:39:10,735 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. [2022-04-15 04:39:10,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 04:39:10 BasicIcfg [2022-04-15 04:39:10,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-15 04:39:10,737 INFO L158 Benchmark]: Toolchain (without parser) took 4627.59ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 125.3MB in the beginning and 76.3MB in the end (delta: 49.0MB). Peak memory consumption was 85.4MB. Max. memory is 8.0GB. [2022-04-15 04:39:10,737 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 175.1MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 04:39:10,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.58ms. Allocated memory is still 175.1MB. Free memory was 125.0MB in the beginning and 153.4MB in the end (delta: -28.4MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-04-15 04:39:10,738 INFO L158 Benchmark]: Boogie Preprocessor took 44.72ms. Allocated memory is still 175.1MB. Free memory was 153.4MB in the beginning and 152.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 04:39:10,738 INFO L158 Benchmark]: RCFGBuilder took 322.81ms. Allocated memory is still 175.1MB. Free memory was 151.8MB in the beginning and 140.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-15 04:39:10,738 INFO L158 Benchmark]: IcfgTransformer took 25.54ms. Allocated memory is still 175.1MB. Free memory was 140.9MB in the beginning and 139.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-15 04:39:10,739 INFO L158 Benchmark]: TraceAbstraction took 3949.03ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 138.8MB in the beginning and 76.3MB in the end (delta: 62.5MB). Peak memory consumption was 99.1MB. Max. memory is 8.0GB. [2022-04-15 04:39:10,740 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 0.13ms. Allocated memory is still 175.1MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 278.58ms. Allocated memory is still 175.1MB. Free memory was 125.0MB in the beginning and 153.4MB in the end (delta: -28.4MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.72ms. Allocated memory is still 175.1MB. Free memory was 153.4MB in the beginning and 152.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 322.81ms. Allocated memory is still 175.1MB. Free memory was 151.8MB in the beginning and 140.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 25.54ms. Allocated memory is still 175.1MB. Free memory was 140.9MB in the beginning and 139.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 3949.03ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 138.8MB in the beginning and 76.3MB in the end (delta: 62.5MB). Peak memory consumption was 99.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int counter = 0; VAL [\old(counter)=5, counter=0] [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L22] CALL assume_abort_if_not(k <= 256) VAL [\old(cond)=1, \old(counter)=0, counter=0] [L7] COND FALSE !(!cond) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=0] [L22] RET assume_abort_if_not(k <= 256) VAL [\old(counter)=0, counter=0, k=2] [L24] y = 0 [L25] x = 0 [L26] c = 0 VAL [\old(counter)=0, c=0, counter=0, k=2, x=0, y=0] [L28] EXPR counter++ VAL [\old(counter)=0, c=0, counter=1, counter++=0, k=2, x=0, y=0] [L28] COND TRUE counter++<1 [L29] CALL __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(cond)=1, \old(counter)=0, counter=1] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=1] [L29] RET __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(counter)=0, c=0, counter=1, k=2, x=0, y=0] [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y * y + x VAL [\old(counter)=0, c=1, counter=1, k=2, x=1, y=1] [L28] EXPR counter++ VAL [\old(counter)=0, c=1, counter=2, counter++=1, k=2, x=1, y=1] [L28] COND FALSE !(counter++<1) [L39] CALL __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(cond)=1, \old(counter)=0, counter=2] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=2] [L39] RET __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(counter)=0, c=1, counter=2, k=2, x=1, y=1] [L40] CALL __VERIFIER_assert(k*y == y*y) VAL [\old(cond)=0, \old(counter)=0, counter=2] [L10] COND TRUE !(cond) VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=2] [L12] reach_error() VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 257 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 155 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 102 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=4, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 459 SizeOfPredicates, 3 NumberOfNonLiveVariables, 261 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 6/8 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! [2022-04-15 04:39:10,754 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...