/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-14 22:59:38,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-14 22:59:38,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-14 22:59:38,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-14 22:59:38,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-14 22:59:38,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-14 22:59:38,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-14 22:59:38,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-14 22:59:38,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-14 22:59:38,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-14 22:59:38,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-14 22:59:38,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-14 22:59:38,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-14 22:59:38,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-14 22:59:38,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-14 22:59:38,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-14 22:59:38,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-14 22:59:38,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-14 22:59:38,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-14 22:59:38,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-14 22:59:38,457 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-14 22:59:38,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-14 22:59:38,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-14 22:59:38,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-14 22:59:38,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-14 22:59:38,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-14 22:59:38,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-14 22:59:38,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-14 22:59:38,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-14 22:59:38,473 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-14 22:59:38,481 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-14 22:59:38,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-14 22:59:38,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-14 22:59:38,482 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-14 22:59:38,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-14 22:59:38,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-14 22:59:38,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-14 22:59:38,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-14 22:59:38,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-14 22:59:38,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-14 22:59:38,483 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-14 22:59:38,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-14 22:59:38,483 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-14 22:59:38,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-14 22:59:38,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-14 22:59:38,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-14 22:59:38,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-14 22:59:38,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-14 22:59:38,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 22:59:38,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-14 22:59:38,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-14 22:59:38,484 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-14 22:59:38,484 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-14 22:59:38,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-14 22:59:38,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-14 22:59:38,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-14 22:59:38,691 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-14 22:59:38,694 INFO L275 PluginConnector]: CDTParser initialized [2022-04-14 22:59:38,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound2.c [2022-04-14 22:59:38,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40489e0f9/b1ea5ac3285241a5ad9a599f1be91401/FLAG3425fc47b [2022-04-14 22:59:39,040 INFO L306 CDTParser]: Found 1 translation units. [2022-04-14 22:59:39,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound2.c [2022-04-14 22:59:39,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40489e0f9/b1ea5ac3285241a5ad9a599f1be91401/FLAG3425fc47b [2022-04-14 22:59:39,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40489e0f9/b1ea5ac3285241a5ad9a599f1be91401 [2022-04-14 22:59:39,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-14 22:59:39,476 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-14 22:59:39,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-14 22:59:39,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-14 22:59:39,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-14 22:59:39,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 10:59:39" (1/1) ... [2022-04-14 22:59:39,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6565ee5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:59:39, skipping insertion in model container [2022-04-14 22:59:39,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 10:59:39" (1/1) ... [2022-04-14 22:59:39,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-14 22:59:39,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-14 22:59:39,604 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/ps4-ll_valuebound2.c[458,471] [2022-04-14 22:59:39,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 22:59:39,632 INFO L203 MainTranslator]: Completed pre-run [2022-04-14 22:59:39,645 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/ps4-ll_valuebound2.c[458,471] [2022-04-14 22:59:39,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 22:59:39,671 INFO L208 MainTranslator]: Completed translation [2022-04-14 22:59:39,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:59:39 WrapperNode [2022-04-14 22:59:39,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-14 22:59:39,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-14 22:59:39,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-14 22:59:39,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-14 22:59:39,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:59:39" (1/1) ... [2022-04-14 22:59:39,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:59:39" (1/1) ... [2022-04-14 22:59:39,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:59:39" (1/1) ... [2022-04-14 22:59:39,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:59:39" (1/1) ... [2022-04-14 22:59:39,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:59:39" (1/1) ... [2022-04-14 22:59:39,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:59:39" (1/1) ... [2022-04-14 22:59:39,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:59:39" (1/1) ... [2022-04-14 22:59:39,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-14 22:59:39,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-14 22:59:39,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-14 22:59:39,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-14 22:59:39,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:59:39" (1/1) ... [2022-04-14 22:59:39,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 22:59:39,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:59:39,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-14 22:59:39,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-14 22:59:39,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-14 22:59:39,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-14 22:59:39,777 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-14 22:59:39,777 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-14 22:59:39,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-14 22:59:39,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-14 22:59:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-14 22:59:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-14 22:59:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-14 22:59:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-14 22:59:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2022-04-14 22:59:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-14 22:59:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-14 22:59:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-14 22:59:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-14 22:59:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-14 22:59:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-14 22:59:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-14 22:59:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-14 22:59:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-14 22:59:39,824 INFO L234 CfgBuilder]: Building ICFG [2022-04-14 22:59:39,826 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-14 22:59:39,968 INFO L275 CfgBuilder]: Performing block encoding [2022-04-14 22:59:39,988 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-14 22:59:39,988 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-14 22:59:39,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 10:59:39 BoogieIcfgContainer [2022-04-14 22:59:39,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-14 22:59:39,990 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-14 22:59:39,990 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-14 22:59:39,990 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-14 22:59:39,992 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 10:59:39" (1/1) ... [2022-04-14 22:59:39,993 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-14 22:59:40,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 10:59:40 BasicIcfg [2022-04-14 22:59:40,017 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-14 22:59:40,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-14 22:59:40,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-14 22:59:40,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-14 22:59:40,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 10:59:39" (1/4) ... [2022-04-14 22:59:40,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575d315a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 10:59:40, skipping insertion in model container [2022-04-14 22:59:40,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:59:39" (2/4) ... [2022-04-14 22:59:40,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575d315a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 10:59:40, skipping insertion in model container [2022-04-14 22:59:40,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 10:59:39" (3/4) ... [2022-04-14 22:59:40,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575d315a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 10:59:40, skipping insertion in model container [2022-04-14 22:59:40,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 10:59:40" (4/4) ... [2022-04-14 22:59:40,035 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound2.cJordan [2022-04-14 22:59:40,038 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-14 22:59:40,038 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-14 22:59:40,079 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-14 22:59:40,104 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-14 22:59:40,104 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-14 22:59:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 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) [2022-04-14 22:59:40,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-14 22:59:40,137 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:59:40,138 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:59:40,138 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:59:40,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:59:40,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1885409022, now seen corresponding path program 1 times [2022-04-14 22:59:40,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:59:40,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161106198] [2022-04-14 22:59:40,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:59:40,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:59:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:40,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 22:59:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:40,342 INFO L290 TraceCheckUtils]: 0: Hoare triple {40#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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{#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[#NULL.offset, #NULL.base] {31#true} is VALID [2022-04-14 22:59:40,343 INFO L290 TraceCheckUtils]: 1: Hoare triple {31#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-14 22:59:40,343 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {31#true} {31#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-14 22:59:40,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-14 22:59:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:40,353 INFO L290 TraceCheckUtils]: 0: Hoare triple {31#true} [71] 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] {31#true} is VALID [2022-04-14 22:59:40,354 INFO L290 TraceCheckUtils]: 1: Hoare triple {31#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:59:40,354 INFO L290 TraceCheckUtils]: 2: Hoare triple {32#false} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:59:40,355 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {32#false} {31#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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#false} is VALID [2022-04-14 22:59:40,359 INFO L272 TraceCheckUtils]: 0: Hoare triple {31#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {40#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 22:59:40,360 INFO L290 TraceCheckUtils]: 1: Hoare triple {40#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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{#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[#NULL.offset, #NULL.base] {31#true} is VALID [2022-04-14 22:59:40,360 INFO L290 TraceCheckUtils]: 2: Hoare triple {31#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-14 22:59:40,361 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {31#true} {31#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-14 22:59:40,361 INFO L272 TraceCheckUtils]: 4: Hoare triple {31#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-14 22:59:40,361 INFO L290 TraceCheckUtils]: 5: Hoare triple {31#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |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_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {31#true} is VALID [2022-04-14 22:59:40,362 INFO L272 TraceCheckUtils]: 6: Hoare triple {31#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {31#true} is VALID [2022-04-14 22:59:40,362 INFO L290 TraceCheckUtils]: 7: Hoare triple {31#true} [71] 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] {31#true} is VALID [2022-04-14 22:59:40,363 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:59:40,363 INFO L290 TraceCheckUtils]: 9: Hoare triple {32#false} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:59:40,363 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {32#false} {31#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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#false} is VALID [2022-04-14 22:59:40,364 INFO L290 TraceCheckUtils]: 11: Hoare triple {32#false} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {32#false} is VALID [2022-04-14 22:59:40,364 INFO L290 TraceCheckUtils]: 12: Hoare triple {32#false} [72] L27-2-->L27-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:59:40,364 INFO L272 TraceCheckUtils]: 13: Hoare triple {32#false} [77] L27-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~k~0_9 v_main_~y~0_9) (* (- 1) (* v_main_~y~0_9 v_main_~y~0_9))) 0) 1 0)) InVars {main_~y~0=v_main_~y~0_9, main_~k~0=v_main_~k~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0, main_~y~0] {32#false} is VALID [2022-04-14 22:59:40,365 INFO L290 TraceCheckUtils]: 14: Hoare triple {32#false} [81] __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] {32#false} is VALID [2022-04-14 22:59:40,365 INFO L290 TraceCheckUtils]: 15: Hoare triple {32#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[] {32#false} is VALID [2022-04-14 22:59:40,365 INFO L290 TraceCheckUtils]: 16: Hoare triple {32#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:59:40,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:59:40,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:59:40,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161106198] [2022-04-14 22:59:40,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161106198] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 22:59:40,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 22:59:40,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-14 22:59:40,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154783037] [2022-04-14 22:59:40,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:59:40,374 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 [2022-04-14 22:59:40,375 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:59:40,376 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) [2022-04-14 22:59:40,401 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:40,401 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-14 22:59:40,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:59:40,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-14 22:59:40,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-14 22:59:40,422 INFO L87 Difference]: Start difference. First operand has 28 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 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) [2022-04-14 22:59:40,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:40,509 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-04-14 22:59:40,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-14 22:59:40,510 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 [2022-04-14 22:59:40,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:59:40,511 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) [2022-04-14 22:59:40,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2022-04-14 22:59:40,518 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) [2022-04-14 22:59:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2022-04-14 22:59:40,522 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 34 transitions. [2022-04-14 22:59:40,564 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:40,571 INFO L225 Difference]: With dead ends: 28 [2022-04-14 22:59:40,571 INFO L226 Difference]: Without dead ends: 23 [2022-04-14 22:59:40,573 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 [2022-04-14 22:59:40,578 INFO L913 BasicCegarLoop]: 26 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:59:40,579 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 29 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:59:40,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-04-14 22:59:40,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-04-14 22:59:40,596 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:59:40,597 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-04-14 22:59:40,597 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-04-14 22:59:40,597 INFO L87 Difference]: Start difference. First operand 23 states. Second operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-04-14 22:59:40,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:40,600 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-04-14 22:59:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-04-14 22:59:40,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:40,600 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:40,601 INFO L74 IsIncluded]: Start isIncluded. First operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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 23 states. [2022-04-14 22:59:40,601 INFO L87 Difference]: Start difference. First operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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 23 states. [2022-04-14 22:59:40,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:40,603 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-04-14 22:59:40,603 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-04-14 22:59:40,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:40,603 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:40,603 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:59:40,604 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:59:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-04-14 22:59:40,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-04-14 22:59:40,606 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 17 [2022-04-14 22:59:40,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:59:40,606 INFO L478 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-04-14 22:59:40,606 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) [2022-04-14 22:59:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-04-14 22:59:40,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-14 22:59:40,607 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:59:40,607 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:59:40,607 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-14 22:59:40,607 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:59:40,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:59:40,608 INFO L85 PathProgramCache]: Analyzing trace with hash 603980644, now seen corresponding path program 1 times [2022-04-14 22:59:40,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:59:40,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630667651] [2022-04-14 22:59:40,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:59:40,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:59:40,621 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:59:40,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [673046937] [2022-04-14 22:59:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:59:40,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:40,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:59:40,622 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-14 22:59:40,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-14 22:59:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:40,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-14 22:59:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:40,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:59:40,770 INFO L272 TraceCheckUtils]: 0: Hoare triple {140#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {140#true} is VALID [2022-04-14 22:59:40,770 INFO L290 TraceCheckUtils]: 1: Hoare triple {140#true} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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{#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[#NULL.offset, #NULL.base] {140#true} is VALID [2022-04-14 22:59:40,771 INFO L290 TraceCheckUtils]: 2: Hoare triple {140#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {140#true} is VALID [2022-04-14 22:59:40,771 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {140#true} {140#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {140#true} is VALID [2022-04-14 22:59:40,771 INFO L272 TraceCheckUtils]: 4: Hoare triple {140#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {140#true} is VALID [2022-04-14 22:59:40,771 INFO L290 TraceCheckUtils]: 5: Hoare triple {140#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |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_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {140#true} is VALID [2022-04-14 22:59:40,771 INFO L272 TraceCheckUtils]: 6: Hoare triple {140#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {140#true} is VALID [2022-04-14 22:59:40,771 INFO L290 TraceCheckUtils]: 7: Hoare triple {140#true} [71] 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] {140#true} is VALID [2022-04-14 22:59:40,771 INFO L290 TraceCheckUtils]: 8: Hoare triple {140#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[] {140#true} is VALID [2022-04-14 22:59:40,772 INFO L290 TraceCheckUtils]: 9: Hoare triple {140#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {140#true} is VALID [2022-04-14 22:59:40,772 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {140#true} {140#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {140#true} is VALID [2022-04-14 22:59:40,772 INFO L290 TraceCheckUtils]: 11: Hoare triple {140#true} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {178#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:59:40,773 INFO L290 TraceCheckUtils]: 12: Hoare triple {178#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {178#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:59:40,773 INFO L272 TraceCheckUtils]: 13: Hoare triple {178#(and (= main_~x~0 0) (= main_~y~0 0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {185#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:59:40,774 INFO L290 TraceCheckUtils]: 14: Hoare triple {185#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __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] {189#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:59:40,774 INFO L290 TraceCheckUtils]: 15: Hoare triple {189#(<= 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[] {141#false} is VALID [2022-04-14 22:59:40,774 INFO L290 TraceCheckUtils]: 16: Hoare triple {141#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {141#false} is VALID [2022-04-14 22:59:40,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:59:40,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-14 22:59:40,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:59:40,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630667651] [2022-04-14 22:59:40,775 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:59:40,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673046937] [2022-04-14 22:59:40,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673046937] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 22:59:40,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 22:59:40,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-14 22:59:40,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651310813] [2022-04-14 22:59:40,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:59:40,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 17 [2022-04-14 22:59:40,777 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:59:40,777 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:59:40,789 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:40,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-14 22:59:40,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:59:40,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-14 22:59:40,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-14 22:59:40,789 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:59:40,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:40,949 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-04-14 22:59:40,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-14 22:59:40,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 17 [2022-04-14 22:59:40,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:59:40,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:59:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2022-04-14 22:59:40,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:59:40,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2022-04-14 22:59:40,953 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 37 transitions. [2022-04-14 22:59:40,990 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:40,991 INFO L225 Difference]: With dead ends: 32 [2022-04-14 22:59:40,991 INFO L226 Difference]: Without dead ends: 30 [2022-04-14 22:59:40,991 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-14 22:59:40,992 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:59:40,992 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 77 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:59:40,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-04-14 22:59:40,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-04-14 22:59:40,995 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:59:40,995 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 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) [2022-04-14 22:59:40,995 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 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) [2022-04-14 22:59:40,996 INFO L87 Difference]: Start difference. First operand 30 states. Second operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 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) [2022-04-14 22:59:40,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:40,997 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-04-14 22:59:40,997 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-04-14 22:59:40,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:40,998 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:40,998 INFO L74 IsIncluded]: Start isIncluded. First operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 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 30 states. [2022-04-14 22:59:40,998 INFO L87 Difference]: Start difference. First operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 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 30 states. [2022-04-14 22:59:40,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:40,999 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-04-14 22:59:41,000 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-04-14 22:59:41,000 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:41,000 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:41,000 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:59:41,000 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:59:41,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 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) [2022-04-14 22:59:41,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-04-14 22:59:41,001 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 17 [2022-04-14 22:59:41,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:59:41,002 INFO L478 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-04-14 22:59:41,002 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:59:41,002 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-04-14 22:59:41,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-14 22:59:41,002 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:59:41,002 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:59:41,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-14 22:59:41,215 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:41,216 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:59:41,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:59:41,216 INFO L85 PathProgramCache]: Analyzing trace with hash -169450186, now seen corresponding path program 1 times [2022-04-14 22:59:41,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:59:41,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723967000] [2022-04-14 22:59:41,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:59:41,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:59:41,229 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:59:41,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563574240] [2022-04-14 22:59:41,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:59:41,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:41,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:59:41,241 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-14 22:59:41,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-14 22:59:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:41,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-14 22:59:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:41,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:59:41,466 INFO L272 TraceCheckUtils]: 0: Hoare triple {319#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,467 INFO L290 TraceCheckUtils]: 1: Hoare triple {319#true} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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{#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[#NULL.offset, #NULL.base] {319#true} is VALID [2022-04-14 22:59:41,467 INFO L290 TraceCheckUtils]: 2: Hoare triple {319#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,467 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {319#true} {319#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,467 INFO L272 TraceCheckUtils]: 4: Hoare triple {319#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,467 INFO L290 TraceCheckUtils]: 5: Hoare triple {319#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |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_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {319#true} is VALID [2022-04-14 22:59:41,467 INFO L272 TraceCheckUtils]: 6: Hoare triple {319#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {319#true} is VALID [2022-04-14 22:59:41,467 INFO L290 TraceCheckUtils]: 7: Hoare triple {319#true} [71] 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] {319#true} is VALID [2022-04-14 22:59:41,468 INFO L290 TraceCheckUtils]: 8: Hoare triple {319#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[] {319#true} is VALID [2022-04-14 22:59:41,468 INFO L290 TraceCheckUtils]: 9: Hoare triple {319#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,468 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {319#true} {319#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {319#true} is VALID [2022-04-14 22:59:41,470 INFO L290 TraceCheckUtils]: 11: Hoare triple {319#true} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {357#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:59:41,470 INFO L290 TraceCheckUtils]: 12: Hoare triple {357#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {357#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:59:41,470 INFO L272 TraceCheckUtils]: 13: Hoare triple {357#(and (= main_~x~0 0) (= main_~y~0 0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {319#true} is VALID [2022-04-14 22:59:41,471 INFO L290 TraceCheckUtils]: 14: Hoare triple {319#true} [81] __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] {319#true} is VALID [2022-04-14 22:59:41,471 INFO L290 TraceCheckUtils]: 15: Hoare triple {319#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[] {319#true} is VALID [2022-04-14 22:59:41,471 INFO L290 TraceCheckUtils]: 16: Hoare triple {319#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,472 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {319#true} {357#(and (= main_~x~0 0) (= main_~y~0 0))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {357#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:59:41,473 INFO L290 TraceCheckUtils]: 18: Hoare triple {357#(and (= main_~x~0 0) (= main_~y~0 0))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {379#(and (= (+ (- 1) main_~y~0) 0) (= (* main_~y~0 (* main_~y~0 main_~y~0)) main_~x~0))} is VALID [2022-04-14 22:59:41,473 INFO L290 TraceCheckUtils]: 19: Hoare triple {379#(and (= (+ (- 1) main_~y~0) 0) (= (* main_~y~0 (* main_~y~0 main_~y~0)) main_~x~0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {379#(and (= (+ (- 1) main_~y~0) 0) (= (* main_~y~0 (* main_~y~0 main_~y~0)) main_~x~0))} is VALID [2022-04-14 22:59:41,474 INFO L272 TraceCheckUtils]: 20: Hoare triple {379#(and (= (+ (- 1) main_~y~0) 0) (= (* main_~y~0 (* main_~y~0 main_~y~0)) main_~x~0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {386#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:59:41,474 INFO L290 TraceCheckUtils]: 21: Hoare triple {386#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __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] {390#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:59:41,475 INFO L290 TraceCheckUtils]: 22: Hoare triple {390#(<= 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[] {320#false} is VALID [2022-04-14 22:59:41,475 INFO L290 TraceCheckUtils]: 23: Hoare triple {320#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {320#false} is VALID [2022-04-14 22:59:41,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:59:41,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 22:59:41,823 INFO L290 TraceCheckUtils]: 23: Hoare triple {320#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {320#false} is VALID [2022-04-14 22:59:41,823 INFO L290 TraceCheckUtils]: 22: Hoare triple {390#(<= 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[] {320#false} is VALID [2022-04-14 22:59:41,828 INFO L290 TraceCheckUtils]: 21: Hoare triple {386#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __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] {390#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:59:41,829 INFO L272 TraceCheckUtils]: 20: Hoare triple {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {386#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:59:41,830 INFO L290 TraceCheckUtils]: 19: Hoare triple {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} is VALID [2022-04-14 22:59:41,837 INFO L290 TraceCheckUtils]: 18: Hoare triple {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} is VALID [2022-04-14 22:59:41,837 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {319#true} {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} is VALID [2022-04-14 22:59:41,837 INFO L290 TraceCheckUtils]: 16: Hoare triple {319#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,837 INFO L290 TraceCheckUtils]: 15: Hoare triple {319#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[] {319#true} is VALID [2022-04-14 22:59:41,837 INFO L290 TraceCheckUtils]: 14: Hoare triple {319#true} [81] __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] {319#true} is VALID [2022-04-14 22:59:41,838 INFO L272 TraceCheckUtils]: 13: Hoare triple {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {319#true} is VALID [2022-04-14 22:59:41,839 INFO L290 TraceCheckUtils]: 12: Hoare triple {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} is VALID [2022-04-14 22:59:41,840 INFO L290 TraceCheckUtils]: 11: Hoare triple {319#true} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} is VALID [2022-04-14 22:59:41,840 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {319#true} {319#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {319#true} is VALID [2022-04-14 22:59:41,840 INFO L290 TraceCheckUtils]: 9: Hoare triple {319#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,840 INFO L290 TraceCheckUtils]: 8: Hoare triple {319#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[] {319#true} is VALID [2022-04-14 22:59:41,840 INFO L290 TraceCheckUtils]: 7: Hoare triple {319#true} [71] 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] {319#true} is VALID [2022-04-14 22:59:41,840 INFO L272 TraceCheckUtils]: 6: Hoare triple {319#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {319#true} is VALID [2022-04-14 22:59:41,840 INFO L290 TraceCheckUtils]: 5: Hoare triple {319#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |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_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {319#true} is VALID [2022-04-14 22:59:41,840 INFO L272 TraceCheckUtils]: 4: Hoare triple {319#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,841 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {319#true} {319#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,841 INFO L290 TraceCheckUtils]: 2: Hoare triple {319#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,841 INFO L290 TraceCheckUtils]: 1: Hoare triple {319#true} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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{#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[#NULL.offset, #NULL.base] {319#true} is VALID [2022-04-14 22:59:41,841 INFO L272 TraceCheckUtils]: 0: Hoare triple {319#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:59:41,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-14 22:59:41,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:59:41,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723967000] [2022-04-14 22:59:41,841 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:59:41,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563574240] [2022-04-14 22:59:41,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563574240] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-14 22:59:41,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-14 22:59:41,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-04-14 22:59:41,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340482276] [2022-04-14 22:59:41,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:59:41,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 24 [2022-04-14 22:59:41,842 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:59:41,843 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-04-14 22:59:41,879 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:41,879 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-14 22:59:41,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:59:41,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-14 22:59:41,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-14 22:59:41,880 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-04-14 22:59:41,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:41,959 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-04-14 22:59:41,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-14 22:59:41,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 24 [2022-04-14 22:59:41,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:59:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-04-14 22:59:41,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2022-04-14 22:59:41,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-04-14 22:59:41,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2022-04-14 22:59:41,962 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 29 transitions. [2022-04-14 22:59:41,999 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:41,999 INFO L225 Difference]: With dead ends: 34 [2022-04-14 22:59:41,999 INFO L226 Difference]: Without dead ends: 31 [2022-04-14 22:59:42,000 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-14 22:59:42,000 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:59:42,001 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 70 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:59:42,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-04-14 22:59:42,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-04-14 22:59:42,003 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:59:42,003 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:59:42,003 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:59:42,003 INFO L87 Difference]: Start difference. First operand 31 states. Second operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:59:42,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:42,005 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-04-14 22:59:42,005 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-04-14 22:59:42,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:42,005 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:42,005 INFO L74 IsIncluded]: Start isIncluded. First operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 31 states. [2022-04-14 22:59:42,005 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 31 states. [2022-04-14 22:59:42,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:42,007 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-04-14 22:59:42,007 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-04-14 22:59:42,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:42,007 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:42,007 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:59:42,007 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:59:42,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:59:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2022-04-14 22:59:42,008 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 24 [2022-04-14 22:59:42,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:59:42,009 INFO L478 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2022-04-14 22:59:42,009 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-04-14 22:59:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-04-14 22:59:42,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-14 22:59:42,014 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:59:42,014 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:59:42,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-14 22:59:42,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-14 22:59:42,230 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:59:42,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:59:42,230 INFO L85 PathProgramCache]: Analyzing trace with hash -434891502, now seen corresponding path program 1 times [2022-04-14 22:59:42,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:59:42,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238178542] [2022-04-14 22:59:42,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:59:42,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:59:42,241 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:59:42,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489293045] [2022-04-14 22:59:42,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:59:42,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:42,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:59:42,254 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-14 22:59:42,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-14 22:59:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:42,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 12 conjunts are in the unsatisfiable core [2022-04-14 22:59:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:42,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:59:42,585 INFO L272 TraceCheckUtils]: 0: Hoare triple {598#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:59:42,585 INFO L290 TraceCheckUtils]: 1: Hoare triple {598#true} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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{#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[#NULL.offset, #NULL.base] {598#true} is VALID [2022-04-14 22:59:42,585 INFO L290 TraceCheckUtils]: 2: Hoare triple {598#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:59:42,585 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {598#true} {598#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:59:42,585 INFO L272 TraceCheckUtils]: 4: Hoare triple {598#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:59:42,585 INFO L290 TraceCheckUtils]: 5: Hoare triple {598#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |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_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {598#true} is VALID [2022-04-14 22:59:42,586 INFO L272 TraceCheckUtils]: 6: Hoare triple {598#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {598#true} is VALID [2022-04-14 22:59:42,586 INFO L290 TraceCheckUtils]: 7: Hoare triple {598#true} [71] 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] {598#true} is VALID [2022-04-14 22:59:42,586 INFO L290 TraceCheckUtils]: 8: Hoare triple {598#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[] {598#true} is VALID [2022-04-14 22:59:42,586 INFO L290 TraceCheckUtils]: 9: Hoare triple {598#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:59:42,586 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {598#true} {598#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {598#true} is VALID [2022-04-14 22:59:42,587 INFO L290 TraceCheckUtils]: 11: Hoare triple {598#true} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {636#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:59:42,587 INFO L290 TraceCheckUtils]: 12: Hoare triple {636#(and (= main_~c~0 0) (= main_~y~0 0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {636#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:59:42,587 INFO L272 TraceCheckUtils]: 13: Hoare triple {636#(and (= main_~c~0 0) (= main_~y~0 0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {598#true} is VALID [2022-04-14 22:59:42,587 INFO L290 TraceCheckUtils]: 14: Hoare triple {598#true} [81] __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] {598#true} is VALID [2022-04-14 22:59:42,587 INFO L290 TraceCheckUtils]: 15: Hoare triple {598#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[] {598#true} is VALID [2022-04-14 22:59:42,588 INFO L290 TraceCheckUtils]: 16: Hoare triple {598#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:59:42,590 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {598#true} {636#(and (= main_~c~0 0) (= main_~y~0 0))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {636#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:59:42,592 INFO L290 TraceCheckUtils]: 18: Hoare triple {636#(and (= main_~c~0 0) (= main_~y~0 0))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {658#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-14 22:59:42,592 INFO L290 TraceCheckUtils]: 19: Hoare triple {658#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {658#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-14 22:59:42,592 INFO L272 TraceCheckUtils]: 20: Hoare triple {658#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {598#true} is VALID [2022-04-14 22:59:42,592 INFO L290 TraceCheckUtils]: 21: Hoare triple {598#true} [81] __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] {598#true} is VALID [2022-04-14 22:59:42,592 INFO L290 TraceCheckUtils]: 22: Hoare triple {598#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[] {598#true} is VALID [2022-04-14 22:59:42,593 INFO L290 TraceCheckUtils]: 23: Hoare triple {598#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:59:42,593 INFO L284 TraceCheckUtils]: 24: Hoare quadruple {598#true} {658#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {658#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-14 22:59:42,594 INFO L290 TraceCheckUtils]: 25: Hoare triple {658#(and (= (+ (- 1) main_~y~0) 0) (< 0 main_~k~0) (<= main_~c~0 1))} [82] L28-1-->L27-3: Formula: (not (< v_main_~c~0_3 v_main_~k~0_5)) InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} AuxVars[] AssignedVars[] {680#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} is VALID [2022-04-14 22:59:42,595 INFO L272 TraceCheckUtils]: 26: Hoare triple {680#(and (= (+ (- 1) main_~y~0) 0) (<= main_~k~0 1) (< 0 main_~k~0))} [77] L27-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~k~0_9 v_main_~y~0_9) (* (- 1) (* v_main_~y~0_9 v_main_~y~0_9))) 0) 1 0)) InVars {main_~y~0=v_main_~y~0_9, main_~k~0=v_main_~k~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0, main_~y~0] {684#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:59:42,595 INFO L290 TraceCheckUtils]: 27: Hoare triple {684#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __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] {688#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:59:42,596 INFO L290 TraceCheckUtils]: 28: Hoare triple {688#(<= 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[] {599#false} is VALID [2022-04-14 22:59:42,596 INFO L290 TraceCheckUtils]: 29: Hoare triple {599#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {599#false} is VALID [2022-04-14 22:59:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-14 22:59:42,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 22:59:42,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:59:42,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238178542] [2022-04-14 22:59:42,879 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:59:42,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489293045] [2022-04-14 22:59:42,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489293045] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-14 22:59:42,879 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-04-14 22:59:42,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2022-04-14 22:59:42,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158631624] [2022-04-14 22:59:42,880 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-04-14 22:59:42,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2022-04-14 22:59:42,880 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:59:42,880 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-14 22:59:42,904 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:42,904 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-14 22:59:42,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:59:42,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-14 22:59:42,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-04-14 22:59:42,905 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-14 22:59:43,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:43,070 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2022-04-14 22:59:43,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-14 22:59:43,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2022-04-14 22:59:43,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:59:43,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-14 22:59:43,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2022-04-14 22:59:43,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-14 22:59:43,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2022-04-14 22:59:43,074 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 35 transitions. [2022-04-14 22:59:43,099 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:43,100 INFO L225 Difference]: With dead ends: 37 [2022-04-14 22:59:43,100 INFO L226 Difference]: Without dead ends: 34 [2022-04-14 22:59:43,100 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-04-14 22:59:43,101 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:59:43,101 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 115 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:59:43,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-04-14 22:59:43,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-04-14 22:59:43,103 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:59:43,103 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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) [2022-04-14 22:59:43,104 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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) [2022-04-14 22:59:43,104 INFO L87 Difference]: Start difference. First operand 34 states. Second operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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) [2022-04-14 22:59:43,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:43,105 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-04-14 22:59:43,105 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-04-14 22:59:43,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:43,105 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:43,106 INFO L74 IsIncluded]: Start isIncluded. First operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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. [2022-04-14 22:59:43,106 INFO L87 Difference]: Start difference. First operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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. [2022-04-14 22:59:43,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:43,107 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-04-14 22:59:43,107 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-04-14 22:59:43,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:43,107 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:43,107 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:59:43,107 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:59:43,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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) [2022-04-14 22:59:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-04-14 22:59:43,109 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 30 [2022-04-14 22:59:43,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:59:43,109 INFO L478 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-04-14 22:59:43,109 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-14 22:59:43,109 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-04-14 22:59:43,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-04-14 22:59:43,110 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:59:43,110 INFO L499 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:59:43,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-14 22:59:43,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:43,331 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:59:43,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:59:43,331 INFO L85 PathProgramCache]: Analyzing trace with hash 725792896, now seen corresponding path program 2 times [2022-04-14 22:59:43,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:59:43,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312570463] [2022-04-14 22:59:43,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:59:43,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:59:43,346 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:59:43,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1696472234] [2022-04-14 22:59:43,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-14 22:59:43,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:43,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:59:43,347 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-14 22:59:43,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-14 22:59:43,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-14 22:59:43,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-14 22:59:43,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-14 22:59:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:43,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:59:43,689 INFO L272 TraceCheckUtils]: 0: Hoare triple {879#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {879#true} is VALID [2022-04-14 22:59:43,689 INFO L290 TraceCheckUtils]: 1: Hoare triple {879#true} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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{#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[#NULL.offset, #NULL.base] {879#true} is VALID [2022-04-14 22:59:43,689 INFO L290 TraceCheckUtils]: 2: Hoare triple {879#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {879#true} is VALID [2022-04-14 22:59:43,689 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {879#true} {879#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {879#true} is VALID [2022-04-14 22:59:43,689 INFO L272 TraceCheckUtils]: 4: Hoare triple {879#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {879#true} is VALID [2022-04-14 22:59:43,689 INFO L290 TraceCheckUtils]: 5: Hoare triple {879#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |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_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {879#true} is VALID [2022-04-14 22:59:43,690 INFO L272 TraceCheckUtils]: 6: Hoare triple {879#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {879#true} is VALID [2022-04-14 22:59:43,690 INFO L290 TraceCheckUtils]: 7: Hoare triple {879#true} [71] 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] {879#true} is VALID [2022-04-14 22:59:43,690 INFO L290 TraceCheckUtils]: 8: Hoare triple {879#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[] {879#true} is VALID [2022-04-14 22:59:43,690 INFO L290 TraceCheckUtils]: 9: Hoare triple {879#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {879#true} is VALID [2022-04-14 22:59:43,690 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {879#true} {879#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {879#true} is VALID [2022-04-14 22:59:43,695 INFO L290 TraceCheckUtils]: 11: Hoare triple {879#true} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {917#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:59:43,695 INFO L290 TraceCheckUtils]: 12: Hoare triple {917#(and (= main_~c~0 0) (= main_~y~0 0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {917#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:59:43,696 INFO L272 TraceCheckUtils]: 13: Hoare triple {917#(and (= main_~c~0 0) (= main_~y~0 0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {879#true} is VALID [2022-04-14 22:59:43,696 INFO L290 TraceCheckUtils]: 14: Hoare triple {879#true} [81] __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] {879#true} is VALID [2022-04-14 22:59:43,696 INFO L290 TraceCheckUtils]: 15: Hoare triple {879#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[] {879#true} is VALID [2022-04-14 22:59:43,696 INFO L290 TraceCheckUtils]: 16: Hoare triple {879#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {879#true} is VALID [2022-04-14 22:59:43,696 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {879#true} {917#(and (= main_~c~0 0) (= main_~y~0 0))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {917#(and (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:59:43,697 INFO L290 TraceCheckUtils]: 18: Hoare triple {917#(and (= main_~c~0 0) (= main_~y~0 0))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {939#(and (= main_~y~0 1) (= main_~c~0 1))} is VALID [2022-04-14 22:59:43,697 INFO L290 TraceCheckUtils]: 19: Hoare triple {939#(and (= main_~y~0 1) (= main_~c~0 1))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {939#(and (= main_~y~0 1) (= main_~c~0 1))} is VALID [2022-04-14 22:59:43,697 INFO L272 TraceCheckUtils]: 20: Hoare triple {939#(and (= main_~y~0 1) (= main_~c~0 1))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {879#true} is VALID [2022-04-14 22:59:43,698 INFO L290 TraceCheckUtils]: 21: Hoare triple {879#true} [81] __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] {879#true} is VALID [2022-04-14 22:59:43,698 INFO L290 TraceCheckUtils]: 22: Hoare triple {879#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[] {879#true} is VALID [2022-04-14 22:59:43,698 INFO L290 TraceCheckUtils]: 23: Hoare triple {879#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {879#true} is VALID [2022-04-14 22:59:43,698 INFO L284 TraceCheckUtils]: 24: Hoare quadruple {879#true} {939#(and (= main_~y~0 1) (= main_~c~0 1))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {939#(and (= main_~y~0 1) (= main_~c~0 1))} is VALID [2022-04-14 22:59:43,699 INFO L290 TraceCheckUtils]: 25: Hoare triple {939#(and (= main_~y~0 1) (= main_~c~0 1))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {961#(and (< 1 main_~k~0) (= (+ (- 1) main_~y~0) 1) (<= main_~c~0 2))} is VALID [2022-04-14 22:59:43,699 INFO L290 TraceCheckUtils]: 26: Hoare triple {961#(and (< 1 main_~k~0) (= (+ (- 1) main_~y~0) 1) (<= main_~c~0 2))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {961#(and (< 1 main_~k~0) (= (+ (- 1) main_~y~0) 1) (<= main_~c~0 2))} is VALID [2022-04-14 22:59:43,699 INFO L272 TraceCheckUtils]: 27: Hoare triple {961#(and (< 1 main_~k~0) (= (+ (- 1) main_~y~0) 1) (<= main_~c~0 2))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {879#true} is VALID [2022-04-14 22:59:43,699 INFO L290 TraceCheckUtils]: 28: Hoare triple {879#true} [81] __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] {879#true} is VALID [2022-04-14 22:59:43,699 INFO L290 TraceCheckUtils]: 29: Hoare triple {879#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[] {879#true} is VALID [2022-04-14 22:59:43,700 INFO L290 TraceCheckUtils]: 30: Hoare triple {879#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {879#true} is VALID [2022-04-14 22:59:43,700 INFO L284 TraceCheckUtils]: 31: Hoare quadruple {879#true} {961#(and (< 1 main_~k~0) (= (+ (- 1) main_~y~0) 1) (<= main_~c~0 2))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {961#(and (< 1 main_~k~0) (= (+ (- 1) main_~y~0) 1) (<= main_~c~0 2))} is VALID [2022-04-14 22:59:43,701 INFO L290 TraceCheckUtils]: 32: Hoare triple {961#(and (< 1 main_~k~0) (= (+ (- 1) main_~y~0) 1) (<= main_~c~0 2))} [82] L28-1-->L27-3: Formula: (not (< v_main_~c~0_3 v_main_~k~0_5)) InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} AuxVars[] AssignedVars[] {983#(and (< 1 main_~k~0) (= (+ (- 1) main_~y~0) 1) (<= main_~k~0 2))} is VALID [2022-04-14 22:59:43,701 INFO L272 TraceCheckUtils]: 33: Hoare triple {983#(and (< 1 main_~k~0) (= (+ (- 1) main_~y~0) 1) (<= main_~k~0 2))} [77] L27-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~k~0_9 v_main_~y~0_9) (* (- 1) (* v_main_~y~0_9 v_main_~y~0_9))) 0) 1 0)) InVars {main_~y~0=v_main_~y~0_9, main_~k~0=v_main_~k~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0, main_~y~0] {987#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:59:43,702 INFO L290 TraceCheckUtils]: 34: Hoare triple {987#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __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] {991#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:59:43,702 INFO L290 TraceCheckUtils]: 35: Hoare triple {991#(<= 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[] {880#false} is VALID [2022-04-14 22:59:43,702 INFO L290 TraceCheckUtils]: 36: Hoare triple {880#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {880#false} is VALID [2022-04-14 22:59:43,702 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-04-14 22:59:43,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 22:59:43,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:59:43,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312570463] [2022-04-14 22:59:43,948 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:59:43,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696472234] [2022-04-14 22:59:43,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696472234] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-14 22:59:43,948 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-04-14 22:59:43,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2022-04-14 22:59:43,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819971382] [2022-04-14 22:59:43,948 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-04-14 22:59:43,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 5 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2022-04-14 22:59:43,949 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:59:43,949 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 5 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-14 22:59:43,971 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:43,971 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-14 22:59:43,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:59:43,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-14 22:59:43,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-04-14 22:59:43,972 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 5 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-14 22:59:44,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:44,166 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2022-04-14 22:59:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-14 22:59:44,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 5 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2022-04-14 22:59:44,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:59:44,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 5 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-14 22:59:44,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 39 transitions. [2022-04-14 22:59:44,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 5 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-14 22:59:44,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 39 transitions. [2022-04-14 22:59:44,169 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 39 transitions. [2022-04-14 22:59:44,196 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:44,197 INFO L225 Difference]: With dead ends: 40 [2022-04-14 22:59:44,197 INFO L226 Difference]: Without dead ends: 37 [2022-04-14 22:59:44,197 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-04-14 22:59:44,197 INFO L913 BasicCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-14 22:59:44,198 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 143 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-14 22:59:44,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-04-14 22:59:44,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-04-14 22:59:44,200 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:59:44,200 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand has 37 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-14 22:59:44,200 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand has 37 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-14 22:59:44,200 INFO L87 Difference]: Start difference. First operand 37 states. Second operand has 37 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-14 22:59:44,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:44,201 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-04-14 22:59:44,202 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-04-14 22:59:44,202 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:44,202 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:44,202 INFO L74 IsIncluded]: Start isIncluded. First operand has 37 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 37 states. [2022-04-14 22:59:44,202 INFO L87 Difference]: Start difference. First operand has 37 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 37 states. [2022-04-14 22:59:44,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:44,203 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-04-14 22:59:44,203 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-04-14 22:59:44,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:44,204 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:44,204 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:59:44,204 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:59:44,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-14 22:59:44,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-04-14 22:59:44,205 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 37 [2022-04-14 22:59:44,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:59:44,205 INFO L478 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-04-14 22:59:44,205 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 5 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-14 22:59:44,205 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-04-14 22:59:44,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-04-14 22:59:44,206 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:59:44,206 INFO L499 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:59:44,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-14 22:59:44,419 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:44,420 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:59:44,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:59:44,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1487404370, now seen corresponding path program 3 times [2022-04-14 22:59:44,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:59:44,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32798424] [2022-04-14 22:59:44,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:59:44,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:59:44,434 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:59:44,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385284450] [2022-04-14 22:59:44,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-14 22:59:44,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:44,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:59:44,435 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-14 22:59:44,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-14 22:59:44,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-04-14 22:59:44,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-14 22:59:44,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 9 conjunts are in the unsatisfiable core [2022-04-14 22:59:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:44,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:59:44,747 INFO L272 TraceCheckUtils]: 0: Hoare triple {1194#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1194#true} is VALID [2022-04-14 22:59:44,747 INFO L290 TraceCheckUtils]: 1: Hoare triple {1194#true} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 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{#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[#NULL.offset, #NULL.base] {1194#true} is VALID [2022-04-14 22:59:44,747 INFO L290 TraceCheckUtils]: 2: Hoare triple {1194#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1194#true} is VALID [2022-04-14 22:59:44,747 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1194#true} {1194#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1194#true} is VALID [2022-04-14 22:59:44,747 INFO L272 TraceCheckUtils]: 4: Hoare triple {1194#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1194#true} is VALID [2022-04-14 22:59:44,748 INFO L290 TraceCheckUtils]: 5: Hoare triple {1194#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |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_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {1194#true} is VALID [2022-04-14 22:59:44,748 INFO L272 TraceCheckUtils]: 6: Hoare triple {1194#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {1194#true} is VALID [2022-04-14 22:59:44,748 INFO L290 TraceCheckUtils]: 7: Hoare triple {1194#true} [71] 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] {1220#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-14 22:59:44,748 INFO L290 TraceCheckUtils]: 8: Hoare triple {1220#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [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[] {1224#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 22:59:44,749 INFO L290 TraceCheckUtils]: 9: Hoare triple {1224#(not (= |assume_abort_if_not_#in~cond| 0))} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1224#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 22:59:44,749 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1224#(not (= |assume_abort_if_not_#in~cond| 0))} {1194#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 2)) 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] {1231#(and (<= 0 main_~k~0) (<= main_~k~0 2))} is VALID [2022-04-14 22:59:44,750 INFO L290 TraceCheckUtils]: 11: Hoare triple {1231#(and (<= 0 main_~k~0) (<= main_~k~0 2))} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {1235#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 0 main_~c~0))} is VALID [2022-04-14 22:59:44,750 INFO L290 TraceCheckUtils]: 12: Hoare triple {1235#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 0 main_~c~0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1235#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 0 main_~c~0))} is VALID [2022-04-14 22:59:44,750 INFO L272 TraceCheckUtils]: 13: Hoare triple {1235#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 0 main_~c~0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1194#true} is VALID [2022-04-14 22:59:44,750 INFO L290 TraceCheckUtils]: 14: Hoare triple {1194#true} [81] __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] {1194#true} is VALID [2022-04-14 22:59:44,750 INFO L290 TraceCheckUtils]: 15: Hoare triple {1194#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[] {1194#true} is VALID [2022-04-14 22:59:44,750 INFO L290 TraceCheckUtils]: 16: Hoare triple {1194#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1194#true} is VALID [2022-04-14 22:59:44,751 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {1194#true} {1235#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 0 main_~c~0))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1235#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 0 main_~c~0))} is VALID [2022-04-14 22:59:44,752 INFO L290 TraceCheckUtils]: 18: Hoare triple {1235#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 0 main_~c~0))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {1257#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 2))} is VALID [2022-04-14 22:59:44,752 INFO L290 TraceCheckUtils]: 19: Hoare triple {1257#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 2))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1257#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 2))} is VALID [2022-04-14 22:59:44,752 INFO L272 TraceCheckUtils]: 20: Hoare triple {1257#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 2))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1194#true} is VALID [2022-04-14 22:59:44,752 INFO L290 TraceCheckUtils]: 21: Hoare triple {1194#true} [81] __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] {1194#true} is VALID [2022-04-14 22:59:44,752 INFO L290 TraceCheckUtils]: 22: Hoare triple {1194#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[] {1194#true} is VALID [2022-04-14 22:59:44,753 INFO L290 TraceCheckUtils]: 23: Hoare triple {1194#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1194#true} is VALID [2022-04-14 22:59:44,753 INFO L284 TraceCheckUtils]: 24: Hoare quadruple {1194#true} {1257#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 2))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1257#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 2))} is VALID [2022-04-14 22:59:44,754 INFO L290 TraceCheckUtils]: 25: Hoare triple {1257#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 2))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {1279#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 2 main_~c~0))} is VALID [2022-04-14 22:59:44,754 INFO L290 TraceCheckUtils]: 26: Hoare triple {1279#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 2 main_~c~0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1279#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 2 main_~c~0))} is VALID [2022-04-14 22:59:44,754 INFO L272 TraceCheckUtils]: 27: Hoare triple {1279#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 2 main_~c~0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1194#true} is VALID [2022-04-14 22:59:44,755 INFO L290 TraceCheckUtils]: 28: Hoare triple {1194#true} [81] __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] {1194#true} is VALID [2022-04-14 22:59:44,755 INFO L290 TraceCheckUtils]: 29: Hoare triple {1194#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[] {1194#true} is VALID [2022-04-14 22:59:44,755 INFO L290 TraceCheckUtils]: 30: Hoare triple {1194#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1194#true} is VALID [2022-04-14 22:59:44,758 INFO L284 TraceCheckUtils]: 31: Hoare quadruple {1194#true} {1279#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 2 main_~c~0))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1279#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 2 main_~c~0))} is VALID [2022-04-14 22:59:44,758 INFO L290 TraceCheckUtils]: 32: Hoare triple {1279#(and (<= 0 main_~k~0) (<= main_~k~0 2) (<= 2 main_~c~0))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {1195#false} is VALID [2022-04-14 22:59:44,758 INFO L290 TraceCheckUtils]: 33: Hoare triple {1195#false} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1195#false} is VALID [2022-04-14 22:59:44,758 INFO L272 TraceCheckUtils]: 34: Hoare triple {1195#false} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1195#false} is VALID [2022-04-14 22:59:44,759 INFO L290 TraceCheckUtils]: 35: Hoare triple {1195#false} [81] __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] {1195#false} is VALID [2022-04-14 22:59:44,759 INFO L290 TraceCheckUtils]: 36: Hoare triple {1195#false} [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[] {1195#false} is VALID [2022-04-14 22:59:44,759 INFO L290 TraceCheckUtils]: 37: Hoare triple {1195#false} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1195#false} is VALID [2022-04-14 22:59:44,759 INFO L284 TraceCheckUtils]: 38: Hoare quadruple {1195#false} {1195#false} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {1195#false} is VALID [2022-04-14 22:59:44,759 INFO L290 TraceCheckUtils]: 39: Hoare triple {1195#false} [82] L28-1-->L27-3: Formula: (not (< v_main_~c~0_3 v_main_~k~0_5)) InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} AuxVars[] AssignedVars[] {1195#false} is VALID [2022-04-14 22:59:44,759 INFO L272 TraceCheckUtils]: 40: Hoare triple {1195#false} [77] L27-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~k~0_9 v_main_~y~0_9) (* (- 1) (* v_main_~y~0_9 v_main_~y~0_9))) 0) 1 0)) InVars {main_~y~0=v_main_~y~0_9, main_~k~0=v_main_~k~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0, main_~y~0] {1195#false} is VALID [2022-04-14 22:59:44,759 INFO L290 TraceCheckUtils]: 41: Hoare triple {1195#false} [81] __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] {1195#false} is VALID [2022-04-14 22:59:44,759 INFO L290 TraceCheckUtils]: 42: Hoare triple {1195#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[] {1195#false} is VALID [2022-04-14 22:59:44,759 INFO L290 TraceCheckUtils]: 43: Hoare triple {1195#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1195#false} is VALID [2022-04-14 22:59:44,759 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-04-14 22:59:44,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-14 22:59:44,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:59:44,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32798424] [2022-04-14 22:59:44,760 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:59:44,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385284450] [2022-04-14 22:59:44,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385284450] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 22:59:44,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 22:59:44,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-14 22:59:44,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017720281] [2022-04-14 22:59:44,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:59:44,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 5 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 44 [2022-04-14 22:59:44,761 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:59:44,761 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 5 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-14 22:59:44,793 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:44,793 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-14 22:59:44,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:59:44,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-14 22:59:44,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-04-14 22:59:44,794 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 5 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-14 22:59:44,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:44,905 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2022-04-14 22:59:44,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-14 22:59:44,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 5 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 44 [2022-04-14 22:59:44,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:59:44,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 5 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-14 22:59:44,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 27 transitions. [2022-04-14 22:59:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 5 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-14 22:59:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 27 transitions. [2022-04-14 22:59:44,908 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 27 transitions. [2022-04-14 22:59:44,936 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:44,936 INFO L225 Difference]: With dead ends: 29 [2022-04-14 22:59:44,936 INFO L226 Difference]: Without dead ends: 0 [2022-04-14 22:59:44,936 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-14 22:59:44,937 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:59:44,937 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 101 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:59:44,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-14 22:59:44,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-14 22:59:44,937 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:59:44,937 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-14 22:59:44,937 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-14 22:59:44,937 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-14 22:59:44,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:44,938 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-14 22:59:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 22:59:44,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:44,938 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:44,938 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-14 22:59:44,938 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-14 22:59:44,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:44,938 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-14 22:59:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 22:59:44,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:44,938 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:44,938 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:59:44,938 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:59:44,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-14 22:59:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-14 22:59:44,938 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2022-04-14 22:59:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:59:44,938 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-14 22:59:44,939 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 5 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-04-14 22:59:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 22:59:44,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:44,940 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-14 22:59:44,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-14 22:59:45,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:45,154 INFO L719 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-04-14 22:59:45,154 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-14 22:59:45,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 10:59:45 BasicIcfg [2022-04-14 22:59:45,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-14 22:59:45,157 INFO L158 Benchmark]: Toolchain (without parser) took 5680.52ms. Allocated memory was 201.3MB in the beginning and 256.9MB in the end (delta: 55.6MB). Free memory was 146.9MB in the beginning and 107.9MB in the end (delta: 39.1MB). Peak memory consumption was 94.3MB. Max. memory is 8.0GB. [2022-04-14 22:59:45,157 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory was 163.6MB in the beginning and 163.4MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-14 22:59:45,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.36ms. Allocated memory was 201.3MB in the beginning and 256.9MB in the end (delta: 55.6MB). Free memory was 146.8MB in the beginning and 228.9MB in the end (delta: -82.1MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. [2022-04-14 22:59:45,157 INFO L158 Benchmark]: Boogie Preprocessor took 23.23ms. Allocated memory is still 256.9MB. Free memory was 228.9MB in the beginning and 227.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-14 22:59:45,157 INFO L158 Benchmark]: RCFGBuilder took 293.61ms. Allocated memory is still 256.9MB. Free memory was 227.4MB in the beginning and 216.4MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-14 22:59:45,158 INFO L158 Benchmark]: IcfgTransformer took 27.21ms. Allocated memory is still 256.9MB. Free memory was 216.4MB in the beginning and 214.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-14 22:59:45,158 INFO L158 Benchmark]: TraceAbstraction took 5138.25ms. Allocated memory is still 256.9MB. Free memory was 214.3MB in the beginning and 107.9MB in the end (delta: 106.4MB). Peak memory consumption was 107.5MB. Max. memory is 8.0GB. [2022-04-14 22:59:45,159 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 0.11ms. Allocated memory is still 201.3MB. Free memory was 163.6MB in the beginning and 163.4MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 194.36ms. Allocated memory was 201.3MB in the beginning and 256.9MB in the end (delta: 55.6MB). Free memory was 146.8MB in the beginning and 228.9MB in the end (delta: -82.1MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.23ms. Allocated memory is still 256.9MB. Free memory was 228.9MB in the beginning and 227.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 293.61ms. Allocated memory is still 256.9MB. Free memory was 227.4MB in the beginning and 216.4MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 27.21ms. Allocated memory is still 256.9MB. Free memory was 216.4MB in the beginning and 214.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 5138.25ms. Allocated memory is still 256.9MB. Free memory was 214.3MB in the beginning and 107.9MB in the end (delta: 106.4MB). Peak memory consumption was 107.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 535 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 391 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 212 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 144 mSDtfsCounter, 212 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 211 GetRequests, 168 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=5, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 593 SizeOfPredicates, 7 NumberOfNonLiveVariables, 489 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 82/96 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-14 22:59:45,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...