/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/egcd3-ll_unwindbound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 18:29:03,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 18:29:03,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 18:29:03,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 18:29:03,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 18:29:03,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 18:29:03,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 18:29:03,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 18:29:03,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 18:29:03,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 18:29:03,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 18:29:03,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 18:29:03,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 18:29:03,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 18:29:03,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 18:29:03,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 18:29:03,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 18:29:03,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 18:29:03,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 18:29:03,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 18:29:03,546 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 18:29:03,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 18:29:03,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 18:29:03,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 18:29:03,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 18:29:03,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-27 18:29:03,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-27 18:29:03,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-27 18:29:03,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-27 18:29:03,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-27 18:29:03,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-27 18:29:03,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-27 18:29:03,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-27 18:29:03,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-27 18:29:03,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 18:29:03,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 18:29:03,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 18:29:03,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-27 18:29:03,564 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 18:29:03,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 18:29:03,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 18:29:03,565 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-27 18:29:03,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 18:29:03,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-27 18:29:03,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 18:29:03,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 18:29:03,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 18:29:03,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 18:29:03,566 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-27 18:29:03,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 18:29:03,566 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 18:29:03,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 18:29:03,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 18:29:03,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 18:29:03,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-27 18:29:03,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 18:29:03,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 18:29:03,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 18:29:03,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 18:29:03,567 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-27 18:29:03,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 18:29:03,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 18:29:03,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 18:29:03,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 18:29:03,787 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 18:29:03,787 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 18:29:03,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/egcd3-ll_unwindbound2.c [2022-04-27 18:29:03,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4784d228/dcd672e0a6204d83a2b9a558a262a3e2/FLAG98abf1cf9 [2022-04-27 18:29:04,186 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 18:29:04,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/egcd3-ll_unwindbound2.c [2022-04-27 18:29:04,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4784d228/dcd672e0a6204d83a2b9a558a262a3e2/FLAG98abf1cf9 [2022-04-27 18:29:04,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4784d228/dcd672e0a6204d83a2b9a558a262a3e2 [2022-04-27 18:29:04,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 18:29:04,204 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-27 18:29:04,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 18:29:04,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 18:29:04,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 18:29:04,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 06:29:04" (1/1) ... [2022-04-27 18:29:04,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2acea181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:29:04, skipping insertion in model container [2022-04-27 18:29:04,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 06:29:04" (1/1) ... [2022-04-27 18:29:04,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 18:29:04,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 18:29:04,358 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/egcd3-ll_unwindbound2.c[490,503] [2022-04-27 18:29:04,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 18:29:04,390 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 18:29:04,404 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/egcd3-ll_unwindbound2.c[490,503] [2022-04-27 18:29:04,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 18:29:04,433 INFO L208 MainTranslator]: Completed translation [2022-04-27 18:29:04,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:29:04 WrapperNode [2022-04-27 18:29:04,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 18:29:04,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 18:29:04,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 18:29:04,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 18:29:04,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:29:04" (1/1) ... [2022-04-27 18:29:04,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:29:04" (1/1) ... [2022-04-27 18:29:04,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:29:04" (1/1) ... [2022-04-27 18:29:04,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:29:04" (1/1) ... [2022-04-27 18:29:04,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:29:04" (1/1) ... [2022-04-27 18:29:04,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:29:04" (1/1) ... [2022-04-27 18:29:04,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:29:04" (1/1) ... [2022-04-27 18:29:04,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 18:29:04,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 18:29:04,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 18:29:04,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 18:29:04,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:29:04" (1/1) ... [2022-04-27 18:29:04,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 18:29:04,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 18:29:04,486 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) [2022-04-27 18:29:04,499 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 [2022-04-27 18:29:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 18:29:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 18:29:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 18:29:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-27 18:29:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 18:29:04,515 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 18:29:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 18:29:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 18:29:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 18:29:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 18:29:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-27 18:29:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-27 18:29:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 18:29:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 18:29:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 18:29:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 18:29:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 18:29:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 18:29:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 18:29:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 18:29:04,590 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 18:29:04,591 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 18:29:04,838 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 18:29:04,843 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 18:29:04,843 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-27 18:29:04,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 06:29:04 BoogieIcfgContainer [2022-04-27 18:29:04,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 18:29:04,844 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-27 18:29:04,844 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-27 18:29:04,849 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-27 18:29:04,851 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 06:29:04" (1/1) ... [2022-04-27 18:29:04,853 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-27 18:29:04,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 06:29:04 BasicIcfg [2022-04-27 18:29:04,888 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-27 18:29:04,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 18:29:04,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 18:29:04,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 18:29:04,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 06:29:04" (1/4) ... [2022-04-27 18:29:04,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10128084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 06:29:04, skipping insertion in model container [2022-04-27 18:29:04,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:29:04" (2/4) ... [2022-04-27 18:29:04,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10128084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 06:29:04, skipping insertion in model container [2022-04-27 18:29:04,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 06:29:04" (3/4) ... [2022-04-27 18:29:04,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10128084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 06:29:04, skipping insertion in model container [2022-04-27 18:29:04,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 06:29:04" (4/4) ... [2022-04-27 18:29:04,892 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd3-ll_unwindbound2.cJordan [2022-04-27 18:29:04,902 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-27 18:29:04,902 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 18:29:04,933 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 18:29:04,937 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@21329fdb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7929b091 [2022-04-27 18:29:04,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 18:29:04,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.48) internal successors, (37), 26 states have internal predecessors, (37), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 18:29:04,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-27 18:29:04,946 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 18:29:04,947 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 18:29:04,947 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 18:29:04,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 18:29:04,950 INFO L85 PathProgramCache]: Analyzing trace with hash 6304412, now seen corresponding path program 1 times [2022-04-27 18:29:04,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 18:29:04,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118649530] [2022-04-27 18:29:04,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:29:04,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 18:29:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:05,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 18:29:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:05,094 INFO L290 TraceCheckUtils]: 0: Hoare triple {56#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] 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) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= v_~counter~0_7 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_7, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {43#true} is VALID [2022-04-27 18:29:05,096 INFO L290 TraceCheckUtils]: 1: Hoare triple {43#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {43#true} is VALID [2022-04-27 18:29:05,096 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {43#true} {43#true} [157] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {43#true} is VALID [2022-04-27 18:29:05,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-27 18:29:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:05,111 INFO L290 TraceCheckUtils]: 0: Hoare triple {43#true} [119] assume_abort_if_notENTRY-->L8: 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] {43#true} is VALID [2022-04-27 18:29:05,111 INFO L290 TraceCheckUtils]: 1: Hoare triple {43#true} [121] L8-->L8-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 18:29:05,111 INFO L290 TraceCheckUtils]: 2: Hoare triple {44#false} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 18:29:05,112 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {44#false} {43#true} [158] assume_abort_if_notEXIT-->L24-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {44#false} is VALID [2022-04-27 18:29:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-04-27 18:29:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:05,118 INFO L290 TraceCheckUtils]: 0: Hoare triple {43#true} [119] assume_abort_if_notENTRY-->L8: 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] {43#true} is VALID [2022-04-27 18:29:05,119 INFO L290 TraceCheckUtils]: 1: Hoare triple {43#true} [121] L8-->L8-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 18:29:05,119 INFO L290 TraceCheckUtils]: 2: Hoare triple {44#false} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 18:29:05,119 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {44#false} {44#false} [159] assume_abort_if_notEXIT-->L25: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {44#false} is VALID [2022-04-27 18:29:05,120 INFO L272 TraceCheckUtils]: 0: Hoare triple {43#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {56#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 18:29:05,120 INFO L290 TraceCheckUtils]: 1: Hoare triple {56#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] 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) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= v_~counter~0_7 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_7, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {43#true} is VALID [2022-04-27 18:29:05,121 INFO L290 TraceCheckUtils]: 2: Hoare triple {43#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {43#true} is VALID [2022-04-27 18:29:05,121 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {43#true} {43#true} [157] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {43#true} is VALID [2022-04-27 18:29:05,121 INFO L272 TraceCheckUtils]: 4: Hoare triple {43#true} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {43#true} is VALID [2022-04-27 18:29:05,121 INFO L290 TraceCheckUtils]: 5: Hoare triple {43#true} [115] mainENTRY-->L24: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_3, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_3, main_~p~0=v_main_~p~0_3, main_~r~0=v_main_~r~0_3, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {43#true} is VALID [2022-04-27 18:29:05,121 INFO L272 TraceCheckUtils]: 6: Hoare triple {43#true} [117] L24-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {43#true} is VALID [2022-04-27 18:29:05,122 INFO L290 TraceCheckUtils]: 7: Hoare triple {43#true} [119] assume_abort_if_notENTRY-->L8: 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] {43#true} is VALID [2022-04-27 18:29:05,122 INFO L290 TraceCheckUtils]: 8: Hoare triple {43#true} [121] L8-->L8-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 18:29:05,122 INFO L290 TraceCheckUtils]: 9: Hoare triple {44#false} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 18:29:05,122 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {44#false} {43#true} [158] assume_abort_if_notEXIT-->L24-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {44#false} is VALID [2022-04-27 18:29:05,122 INFO L272 TraceCheckUtils]: 11: Hoare triple {44#false} [118] L24-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {43#true} is VALID [2022-04-27 18:29:05,123 INFO L290 TraceCheckUtils]: 12: Hoare triple {43#true} [119] assume_abort_if_notENTRY-->L8: 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] {43#true} is VALID [2022-04-27 18:29:05,123 INFO L290 TraceCheckUtils]: 13: Hoare triple {43#true} [121] L8-->L8-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 18:29:05,123 INFO L290 TraceCheckUtils]: 14: Hoare triple {44#false} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 18:29:05,123 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {44#false} {44#false} [159] assume_abort_if_notEXIT-->L25: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {44#false} is VALID [2022-04-27 18:29:05,124 INFO L290 TraceCheckUtils]: 16: Hoare triple {44#false} [120] L25-->L34-3: Formula: (and (= v_main_~b~0_4 v_main_~y~0_6) (= v_main_~q~0_5 0) (= v_main_~s~0_5 1) (= v_main_~p~0_5 1) (= v_main_~a~0_4 v_main_~x~0_6) (= v_main_~r~0_5 0)) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6, main_~b~0=v_main_~b~0_4, main_~p~0=v_main_~p~0_5, main_~r~0=v_main_~r~0_5, main_~s~0=v_main_~s~0_5, main_~a~0=v_main_~a~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {44#false} is VALID [2022-04-27 18:29:05,124 INFO L290 TraceCheckUtils]: 17: Hoare triple {44#false} [123] L34-3-->L34-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 18:29:05,124 INFO L272 TraceCheckUtils]: 18: Hoare triple {44#false} [126] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~y~0_12 v_main_~r~0_8) (* (- 1) (* v_main_~y~0_12 v_main_~s~0_8)) (* (- 1) (* v_main_~x~0_12 v_main_~q~0_8)) (* v_main_~x~0_12 v_main_~p~0_8)) v_main_~a~0_10) 1 0) |v___VERIFIER_assert_#in~condInParam_5|) InVars {main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_12, main_~y~0=v_main_~y~0_12, main_~p~0=v_main_~p~0_8, main_~r~0=v_main_~r~0_8, main_~s~0=v_main_~s~0_8, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_5|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {44#false} is VALID [2022-04-27 18:29:05,124 INFO L290 TraceCheckUtils]: 19: Hoare triple {44#false} [130] __VERIFIER_assertENTRY-->L11: Formula: (= v___VERIFIER_assert_~cond_1 |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_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {44#false} is VALID [2022-04-27 18:29:05,124 INFO L290 TraceCheckUtils]: 20: Hoare triple {44#false} [134] L11-->L12: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 18:29:05,125 INFO L290 TraceCheckUtils]: 21: Hoare triple {44#false} [138] L12-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#false} is VALID [2022-04-27 18:29:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-27 18:29:05,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 18:29:05,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118649530] [2022-04-27 18:29:05,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118649530] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 18:29:05,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 18:29:05,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-27 18:29:05,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58627776] [2022-04-27 18:29:05,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 18:29:05,132 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, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-04-27 18:29:05,133 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 18:29:05,135 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, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:05,160 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:29:05,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-27 18:29:05,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 18:29:05,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-27 18:29:05,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 18:29:05,189 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.48) internal successors, (37), 26 states have internal predecessors, (37), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:05,345 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-04-27 18:29:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-27 18:29:05,345 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, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-04-27 18:29:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 18:29:05,346 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, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:05,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2022-04-27 18:29:05,352 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, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:05,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2022-04-27 18:29:05,354 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 57 transitions. [2022-04-27 18:29:05,397 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:29:05,409 INFO L225 Difference]: With dead ends: 41 [2022-04-27 18:29:05,410 INFO L226 Difference]: Without dead ends: 36 [2022-04-27 18:29:05,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 18:29:05,416 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 18:29:05,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 51 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 18:29:05,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-04-27 18:29:05,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2022-04-27 18:29:05,437 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 18:29:05,438 INFO L82 GeneralOperation]: Start isEquivalent. First operand 36 states. Second operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:05,440 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:05,441 INFO L87 Difference]: Start difference. First operand 36 states. Second operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:05,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:05,455 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-04-27 18:29:05,456 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2022-04-27 18:29:05,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:29:05,459 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:29:05,459 INFO L74 IsIncluded]: Start isIncluded. First operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 36 states. [2022-04-27 18:29:05,459 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 36 states. [2022-04-27 18:29:05,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:05,462 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-04-27 18:29:05,462 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2022-04-27 18:29:05,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:29:05,462 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:29:05,462 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 18:29:05,463 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 18:29:05,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:05,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2022-04-27 18:29:05,465 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 22 [2022-04-27 18:29:05,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 18:29:05,466 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2022-04-27 18:29:05,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:05,466 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2022-04-27 18:29:05,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-27 18:29:05,466 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 18:29:05,466 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 18:29:05,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 18:29:05,467 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 18:29:05,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 18:29:05,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1535904754, now seen corresponding path program 1 times [2022-04-27 18:29:05,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 18:29:05,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055471908] [2022-04-27 18:29:05,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:29:05,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 18:29:05,501 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 18:29:05,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115562960] [2022-04-27 18:29:05,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:29:05,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 18:29:05,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 18:29:05,502 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) [2022-04-27 18:29:05,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-27 18:29:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:05,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-27 18:29:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:05,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 18:29:05,725 INFO L272 TraceCheckUtils]: 0: Hoare triple {207#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-27 18:29:05,726 INFO L290 TraceCheckUtils]: 1: Hoare triple {207#true} [113] 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) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= v_~counter~0_7 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_7, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,726 INFO L290 TraceCheckUtils]: 2: Hoare triple {215#(<= ~counter~0 0)} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,727 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {215#(<= ~counter~0 0)} {207#true} [157] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,727 INFO L272 TraceCheckUtils]: 4: Hoare triple {215#(<= ~counter~0 0)} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,728 INFO L290 TraceCheckUtils]: 5: Hoare triple {215#(<= ~counter~0 0)} [115] mainENTRY-->L24: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_3, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_3, main_~p~0=v_main_~p~0_3, main_~r~0=v_main_~r~0_3, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,728 INFO L272 TraceCheckUtils]: 6: Hoare triple {215#(<= ~counter~0 0)} [117] L24-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,729 INFO L290 TraceCheckUtils]: 7: Hoare triple {215#(<= ~counter~0 0)} [119] assume_abort_if_notENTRY-->L8: 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] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,729 INFO L290 TraceCheckUtils]: 8: Hoare triple {215#(<= ~counter~0 0)} [122] L8-->L8-2: 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[] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,730 INFO L290 TraceCheckUtils]: 9: Hoare triple {215#(<= ~counter~0 0)} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,730 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {215#(<= ~counter~0 0)} {215#(<= ~counter~0 0)} [158] assume_abort_if_notEXIT-->L24-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,731 INFO L272 TraceCheckUtils]: 11: Hoare triple {215#(<= ~counter~0 0)} [118] L24-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,731 INFO L290 TraceCheckUtils]: 12: Hoare triple {215#(<= ~counter~0 0)} [119] assume_abort_if_notENTRY-->L8: 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] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,731 INFO L290 TraceCheckUtils]: 13: Hoare triple {215#(<= ~counter~0 0)} [122] L8-->L8-2: 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[] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,732 INFO L290 TraceCheckUtils]: 14: Hoare triple {215#(<= ~counter~0 0)} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,732 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {215#(<= ~counter~0 0)} {215#(<= ~counter~0 0)} [159] assume_abort_if_notEXIT-->L25: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,733 INFO L290 TraceCheckUtils]: 16: Hoare triple {215#(<= ~counter~0 0)} [120] L25-->L34-3: Formula: (and (= v_main_~b~0_4 v_main_~y~0_6) (= v_main_~q~0_5 0) (= v_main_~s~0_5 1) (= v_main_~p~0_5 1) (= v_main_~a~0_4 v_main_~x~0_6) (= v_main_~r~0_5 0)) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6, main_~b~0=v_main_~b~0_4, main_~p~0=v_main_~p~0_5, main_~r~0=v_main_~r~0_5, main_~s~0=v_main_~s~0_5, main_~a~0=v_main_~a~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {215#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:05,733 INFO L290 TraceCheckUtils]: 17: Hoare triple {215#(<= ~counter~0 0)} [124] L34-3-->L34-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {264#(<= |main_#t~post6| 0)} is VALID [2022-04-27 18:29:05,734 INFO L290 TraceCheckUtils]: 18: Hoare triple {264#(<= |main_#t~post6| 0)} [127] L34-1-->L34-4: Formula: (not (< |v_main_#t~post6_3| 2)) InVars {main_#t~post6=|v_main_#t~post6_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {208#false} is VALID [2022-04-27 18:29:05,734 INFO L272 TraceCheckUtils]: 19: Hoare triple {208#false} [126] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~y~0_12 v_main_~r~0_8) (* (- 1) (* v_main_~y~0_12 v_main_~s~0_8)) (* (- 1) (* v_main_~x~0_12 v_main_~q~0_8)) (* v_main_~x~0_12 v_main_~p~0_8)) v_main_~a~0_10) 1 0) |v___VERIFIER_assert_#in~condInParam_5|) InVars {main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_12, main_~y~0=v_main_~y~0_12, main_~p~0=v_main_~p~0_8, main_~r~0=v_main_~r~0_8, main_~s~0=v_main_~s~0_8, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_5|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {208#false} is VALID [2022-04-27 18:29:05,734 INFO L290 TraceCheckUtils]: 20: Hoare triple {208#false} [130] __VERIFIER_assertENTRY-->L11: Formula: (= v___VERIFIER_assert_~cond_1 |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_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {208#false} is VALID [2022-04-27 18:29:05,734 INFO L290 TraceCheckUtils]: 21: Hoare triple {208#false} [134] L11-->L12: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {208#false} is VALID [2022-04-27 18:29:05,735 INFO L290 TraceCheckUtils]: 22: Hoare triple {208#false} [138] L12-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#false} is VALID [2022-04-27 18:29:05,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-27 18:29:05,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 18:29:05,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 18:29:05,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055471908] [2022-04-27 18:29:05,735 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 18:29:05,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115562960] [2022-04-27 18:29:05,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115562960] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 18:29:05,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 18:29:05,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-27 18:29:05,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59491183] [2022-04-27 18:29:05,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 18:29:05,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-04-27 18:29:05,737 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 18:29:05,737 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:05,752 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:29:05,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-27 18:29:05,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 18:29:05,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-27 18:29:05,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-27 18:29:05,753 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:05,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:05,867 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2022-04-27 18:29:05,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-27 18:29:05,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-04-27 18:29:05,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 18:29:05,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:05,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2022-04-27 18:29:05,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:05,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2022-04-27 18:29:05,879 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 48 transitions. [2022-04-27 18:29:05,913 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:29:05,916 INFO L225 Difference]: With dead ends: 37 [2022-04-27 18:29:05,917 INFO L226 Difference]: Without dead ends: 37 [2022-04-27 18:29:05,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-27 18:29:05,920 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 18:29:05,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 18:29:05,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-04-27 18:29:05,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-04-27 18:29:05,926 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 18:29:05,927 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:05,928 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:05,929 INFO L87 Difference]: Start difference. First operand 37 states. Second operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:05,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:05,935 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2022-04-27 18:29:05,935 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2022-04-27 18:29:05,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:29:05,937 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:29:05,938 INFO L74 IsIncluded]: Start isIncluded. First operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 37 states. [2022-04-27 18:29:05,938 INFO L87 Difference]: Start difference. First operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 37 states. [2022-04-27 18:29:05,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:05,945 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2022-04-27 18:29:05,945 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2022-04-27 18:29:05,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:29:05,950 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:29:05,950 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 18:29:05,950 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 18:29:05,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:05,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2022-04-27 18:29:05,954 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 23 [2022-04-27 18:29:05,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 18:29:05,955 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2022-04-27 18:29:05,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2022-04-27 18:29:05,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-27 18:29:05,957 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 18:29:05,957 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 18:29:05,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-27 18:29:06,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 18:29:06,178 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 18:29:06,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 18:29:06,178 INFO L85 PathProgramCache]: Analyzing trace with hash 401530880, now seen corresponding path program 1 times [2022-04-27 18:29:06,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 18:29:06,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808257597] [2022-04-27 18:29:06,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:29:06,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 18:29:06,195 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 18:29:06,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1900410301] [2022-04-27 18:29:06,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:29:06,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 18:29:06,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 18:29:06,196 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) [2022-04-27 18:29:06,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-27 18:29:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:06,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-27 18:29:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:06,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 18:29:06,380 INFO L272 TraceCheckUtils]: 0: Hoare triple {427#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-27 18:29:06,381 INFO L290 TraceCheckUtils]: 1: Hoare triple {427#true} [113] 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) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= v_~counter~0_7 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_7, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {427#true} is VALID [2022-04-27 18:29:06,381 INFO L290 TraceCheckUtils]: 2: Hoare triple {427#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-27 18:29:06,381 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {427#true} {427#true} [157] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-27 18:29:06,381 INFO L272 TraceCheckUtils]: 4: Hoare triple {427#true} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-27 18:29:06,381 INFO L290 TraceCheckUtils]: 5: Hoare triple {427#true} [115] mainENTRY-->L24: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_3, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_3, main_~p~0=v_main_~p~0_3, main_~r~0=v_main_~r~0_3, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {427#true} is VALID [2022-04-27 18:29:06,381 INFO L272 TraceCheckUtils]: 6: Hoare triple {427#true} [117] L24-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {427#true} is VALID [2022-04-27 18:29:06,382 INFO L290 TraceCheckUtils]: 7: Hoare triple {427#true} [119] assume_abort_if_notENTRY-->L8: 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] {427#true} is VALID [2022-04-27 18:29:06,382 INFO L290 TraceCheckUtils]: 8: Hoare triple {427#true} [122] L8-->L8-2: 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[] {427#true} is VALID [2022-04-27 18:29:06,382 INFO L290 TraceCheckUtils]: 9: Hoare triple {427#true} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-27 18:29:06,383 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {427#true} {427#true} [158] assume_abort_if_notEXIT-->L24-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {427#true} is VALID [2022-04-27 18:29:06,383 INFO L272 TraceCheckUtils]: 11: Hoare triple {427#true} [118] L24-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {427#true} is VALID [2022-04-27 18:29:06,383 INFO L290 TraceCheckUtils]: 12: Hoare triple {427#true} [119] assume_abort_if_notENTRY-->L8: 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] {468#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-27 18:29:06,384 INFO L290 TraceCheckUtils]: 13: Hoare triple {468#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [122] L8-->L8-2: 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[] {472#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-27 18:29:06,384 INFO L290 TraceCheckUtils]: 14: Hoare triple {472#(not (= |assume_abort_if_not_#in~cond| 0))} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {472#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-27 18:29:06,384 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {472#(not (= |assume_abort_if_not_#in~cond| 0))} {427#true} [159] assume_abort_if_notEXIT-->L25: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {479#(<= 1 main_~y~0)} is VALID [2022-04-27 18:29:06,385 INFO L290 TraceCheckUtils]: 16: Hoare triple {479#(<= 1 main_~y~0)} [120] L25-->L34-3: Formula: (and (= v_main_~b~0_4 v_main_~y~0_6) (= v_main_~q~0_5 0) (= v_main_~s~0_5 1) (= v_main_~p~0_5 1) (= v_main_~a~0_4 v_main_~x~0_6) (= v_main_~r~0_5 0)) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6, main_~b~0=v_main_~b~0_4, main_~p~0=v_main_~p~0_5, main_~r~0=v_main_~r~0_5, main_~s~0=v_main_~s~0_5, main_~a~0=v_main_~a~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {483#(<= 1 main_~b~0)} is VALID [2022-04-27 18:29:06,385 INFO L290 TraceCheckUtils]: 17: Hoare triple {483#(<= 1 main_~b~0)} [124] L34-3-->L34-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {483#(<= 1 main_~b~0)} is VALID [2022-04-27 18:29:06,386 INFO L290 TraceCheckUtils]: 18: Hoare triple {483#(<= 1 main_~b~0)} [128] L34-1-->L35: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {483#(<= 1 main_~b~0)} is VALID [2022-04-27 18:29:06,386 INFO L290 TraceCheckUtils]: 19: Hoare triple {483#(<= 1 main_~b~0)} [131] L35-->L34-4: Formula: (= v_main_~b~0_5 0) InVars {main_~b~0=v_main_~b~0_5} OutVars{main_~b~0=v_main_~b~0_5} AuxVars[] AssignedVars[] {428#false} is VALID [2022-04-27 18:29:06,386 INFO L272 TraceCheckUtils]: 20: Hoare triple {428#false} [126] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~y~0_12 v_main_~r~0_8) (* (- 1) (* v_main_~y~0_12 v_main_~s~0_8)) (* (- 1) (* v_main_~x~0_12 v_main_~q~0_8)) (* v_main_~x~0_12 v_main_~p~0_8)) v_main_~a~0_10) 1 0) |v___VERIFIER_assert_#in~condInParam_5|) InVars {main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_12, main_~y~0=v_main_~y~0_12, main_~p~0=v_main_~p~0_8, main_~r~0=v_main_~r~0_8, main_~s~0=v_main_~s~0_8, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_5|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {428#false} is VALID [2022-04-27 18:29:06,386 INFO L290 TraceCheckUtils]: 21: Hoare triple {428#false} [130] __VERIFIER_assertENTRY-->L11: Formula: (= v___VERIFIER_assert_~cond_1 |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_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {428#false} is VALID [2022-04-27 18:29:06,387 INFO L290 TraceCheckUtils]: 22: Hoare triple {428#false} [134] L11-->L12: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {428#false} is VALID [2022-04-27 18:29:06,387 INFO L290 TraceCheckUtils]: 23: Hoare triple {428#false} [138] L12-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {428#false} is VALID [2022-04-27 18:29:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-27 18:29:06,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 18:29:06,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 18:29:06,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808257597] [2022-04-27 18:29:06,390 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 18:29:06,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900410301] [2022-04-27 18:29:06,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900410301] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 18:29:06,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 18:29:06,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-27 18:29:06,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096985235] [2022-04-27 18:29:06,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 18:29:06,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-04-27 18:29:06,391 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 18:29:06,392 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-27 18:29:06,407 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:29:06,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-27 18:29:06,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 18:29:06,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-27 18:29:06,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-27 18:29:06,408 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-27 18:29:06,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:06,613 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2022-04-27 18:29:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-27 18:29:06,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-04-27 18:29:06,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 18:29:06,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-27 18:29:06,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 69 transitions. [2022-04-27 18:29:06,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-27 18:29:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 69 transitions. [2022-04-27 18:29:06,618 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 69 transitions. [2022-04-27 18:29:06,669 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:29:06,670 INFO L225 Difference]: With dead ends: 50 [2022-04-27 18:29:06,671 INFO L226 Difference]: Without dead ends: 50 [2022-04-27 18:29:06,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-27 18:29:06,672 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 46 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-27 18:29:06,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 148 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-27 18:29:06,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-04-27 18:29:06,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 38. [2022-04-27 18:29:06,676 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 18:29:06,677 INFO L82 GeneralOperation]: Start isEquivalent. First operand 50 states. Second operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:06,677 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:06,677 INFO L87 Difference]: Start difference. First operand 50 states. Second operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:06,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:06,681 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2022-04-27 18:29:06,681 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2022-04-27 18:29:06,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:29:06,682 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:29:06,682 INFO L74 IsIncluded]: Start isIncluded. First operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 50 states. [2022-04-27 18:29:06,682 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 50 states. [2022-04-27 18:29:06,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:06,685 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2022-04-27 18:29:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2022-04-27 18:29:06,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:29:06,686 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:29:06,686 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 18:29:06,686 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 18:29:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2022-04-27 18:29:06,688 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 24 [2022-04-27 18:29:06,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 18:29:06,688 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2022-04-27 18:29:06,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-27 18:29:06,688 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2022-04-27 18:29:06,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-27 18:29:06,688 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 18:29:06,689 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 18:29:06,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-27 18:29:06,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-27 18:29:06,905 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 18:29:06,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 18:29:06,905 INFO L85 PathProgramCache]: Analyzing trace with hash 2110136122, now seen corresponding path program 1 times [2022-04-27 18:29:06,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 18:29:06,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847272148] [2022-04-27 18:29:06,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:29:06,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 18:29:06,920 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 18:29:06,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565678858] [2022-04-27 18:29:06,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:29:06,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 18:29:06,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 18:29:06,921 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) [2022-04-27 18:29:06,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-27 18:29:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:06,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-27 18:29:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:06,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 18:29:07,095 INFO L272 TraceCheckUtils]: 0: Hoare triple {696#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {696#true} is VALID [2022-04-27 18:29:07,096 INFO L290 TraceCheckUtils]: 1: Hoare triple {696#true} [113] 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) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= v_~counter~0_7 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_7, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,096 INFO L290 TraceCheckUtils]: 2: Hoare triple {704#(<= ~counter~0 0)} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,097 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {704#(<= ~counter~0 0)} {696#true} [157] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,097 INFO L272 TraceCheckUtils]: 4: Hoare triple {704#(<= ~counter~0 0)} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,098 INFO L290 TraceCheckUtils]: 5: Hoare triple {704#(<= ~counter~0 0)} [115] mainENTRY-->L24: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_3, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_3, main_~p~0=v_main_~p~0_3, main_~r~0=v_main_~r~0_3, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,098 INFO L272 TraceCheckUtils]: 6: Hoare triple {704#(<= ~counter~0 0)} [117] L24-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,099 INFO L290 TraceCheckUtils]: 7: Hoare triple {704#(<= ~counter~0 0)} [119] assume_abort_if_notENTRY-->L8: 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] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,100 INFO L290 TraceCheckUtils]: 8: Hoare triple {704#(<= ~counter~0 0)} [122] L8-->L8-2: 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[] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,101 INFO L290 TraceCheckUtils]: 9: Hoare triple {704#(<= ~counter~0 0)} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,101 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {704#(<= ~counter~0 0)} {704#(<= ~counter~0 0)} [158] assume_abort_if_notEXIT-->L24-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,102 INFO L272 TraceCheckUtils]: 11: Hoare triple {704#(<= ~counter~0 0)} [118] L24-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,102 INFO L290 TraceCheckUtils]: 12: Hoare triple {704#(<= ~counter~0 0)} [119] assume_abort_if_notENTRY-->L8: 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] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,102 INFO L290 TraceCheckUtils]: 13: Hoare triple {704#(<= ~counter~0 0)} [122] L8-->L8-2: 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[] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,103 INFO L290 TraceCheckUtils]: 14: Hoare triple {704#(<= ~counter~0 0)} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,103 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {704#(<= ~counter~0 0)} {704#(<= ~counter~0 0)} [159] assume_abort_if_notEXIT-->L25: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,103 INFO L290 TraceCheckUtils]: 16: Hoare triple {704#(<= ~counter~0 0)} [120] L25-->L34-3: Formula: (and (= v_main_~b~0_4 v_main_~y~0_6) (= v_main_~q~0_5 0) (= v_main_~s~0_5 1) (= v_main_~p~0_5 1) (= v_main_~a~0_4 v_main_~x~0_6) (= v_main_~r~0_5 0)) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6, main_~b~0=v_main_~b~0_4, main_~p~0=v_main_~p~0_5, main_~r~0=v_main_~r~0_5, main_~s~0=v_main_~s~0_5, main_~a~0=v_main_~a~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {704#(<= ~counter~0 0)} is VALID [2022-04-27 18:29:07,104 INFO L290 TraceCheckUtils]: 17: Hoare triple {704#(<= ~counter~0 0)} [124] L34-3-->L34-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {753#(<= ~counter~0 1)} is VALID [2022-04-27 18:29:07,104 INFO L290 TraceCheckUtils]: 18: Hoare triple {753#(<= ~counter~0 1)} [128] L34-1-->L35: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {753#(<= ~counter~0 1)} is VALID [2022-04-27 18:29:07,104 INFO L290 TraceCheckUtils]: 19: Hoare triple {753#(<= ~counter~0 1)} [132] L35-->L41-3: Formula: (and (not (= v_main_~b~0_6 0)) (= v_main_~k~0_4 0) (= v_main_~a~0_5 v_main_~c~0_4)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~c~0=v_main_~c~0_4, main_~b~0=v_main_~b~0_6, main_~k~0=v_main_~k~0_4, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~k~0, main_~c~0] {753#(<= ~counter~0 1)} is VALID [2022-04-27 18:29:07,105 INFO L290 TraceCheckUtils]: 20: Hoare triple {753#(<= ~counter~0 1)} [137] L41-3-->L41-1: Formula: (and (= |v_main_#t~post7_1| v_~counter~0_4) (= (+ |v_main_#t~post7_1| 1) v_~counter~0_3)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post7=|v_main_#t~post7_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {763#(<= |main_#t~post7| 1)} is VALID [2022-04-27 18:29:07,105 INFO L290 TraceCheckUtils]: 21: Hoare triple {763#(<= |main_#t~post7| 1)} [142] L41-1-->L41-4: Formula: (not (< |v_main_#t~post7_3| 2)) InVars {main_#t~post7=|v_main_#t~post7_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {697#false} is VALID [2022-04-27 18:29:07,105 INFO L290 TraceCheckUtils]: 22: Hoare triple {697#false} [141] L41-4-->L34-3: Formula: (and (= v_main_~r~0_1 v_main_~s~0_2) (= v_main_~b~0_1 v_main_~c~0_3) (= v_main_~p~0_2 (+ v_main_~q~0_1 (* v_main_~k~0_3 v_main_~q~0_2))) (= v_main_~r~0_2 v_main_~temp~0_1) (= v_main_~p~0_1 v_main_~q~0_2) (= v_main_~a~0_1 v_main_~b~0_2) (= v_main_~s~0_1 (+ v_main_~temp~0_1 (* (- 1) (* v_main_~k~0_3 v_main_~s~0_2))))) InVars {main_~q~0=v_main_~q~0_2, main_~k~0=v_main_~k~0_3, main_~c~0=v_main_~c~0_3, main_~b~0=v_main_~b~0_2, main_~p~0=v_main_~p~0_2, main_~r~0=v_main_~r~0_2, main_~s~0=v_main_~s~0_2} OutVars{main_~q~0=v_main_~q~0_1, main_~temp~0=v_main_~temp~0_1, main_~k~0=v_main_~k~0_3, main_~c~0=v_main_~c~0_3, main_~b~0=v_main_~b~0_1, main_~p~0=v_main_~p~0_1, main_~r~0=v_main_~r~0_1, main_~s~0=v_main_~s~0_1, main_~a~0=v_main_~a~0_1} AuxVars[] AssignedVars[main_~q~0, main_~temp~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {697#false} is VALID [2022-04-27 18:29:07,105 INFO L290 TraceCheckUtils]: 23: Hoare triple {697#false} [124] L34-3-->L34-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {697#false} is VALID [2022-04-27 18:29:07,106 INFO L290 TraceCheckUtils]: 24: Hoare triple {697#false} [127] L34-1-->L34-4: Formula: (not (< |v_main_#t~post6_3| 2)) InVars {main_#t~post6=|v_main_#t~post6_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {697#false} is VALID [2022-04-27 18:29:07,106 INFO L272 TraceCheckUtils]: 25: Hoare triple {697#false} [126] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~y~0_12 v_main_~r~0_8) (* (- 1) (* v_main_~y~0_12 v_main_~s~0_8)) (* (- 1) (* v_main_~x~0_12 v_main_~q~0_8)) (* v_main_~x~0_12 v_main_~p~0_8)) v_main_~a~0_10) 1 0) |v___VERIFIER_assert_#in~condInParam_5|) InVars {main_~q~0=v_main_~q~0_8, main_~x~0=v_main_~x~0_12, main_~y~0=v_main_~y~0_12, main_~p~0=v_main_~p~0_8, main_~r~0=v_main_~r~0_8, main_~s~0=v_main_~s~0_8, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_5|} AuxVars[] AssignedVars[main_~q~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~y~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {697#false} is VALID [2022-04-27 18:29:07,106 INFO L290 TraceCheckUtils]: 26: Hoare triple {697#false} [130] __VERIFIER_assertENTRY-->L11: Formula: (= v___VERIFIER_assert_~cond_1 |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_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {697#false} is VALID [2022-04-27 18:29:07,106 INFO L290 TraceCheckUtils]: 27: Hoare triple {697#false} [134] L11-->L12: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {697#false} is VALID [2022-04-27 18:29:07,106 INFO L290 TraceCheckUtils]: 28: Hoare triple {697#false} [138] L12-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {697#false} is VALID [2022-04-27 18:29:07,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-27 18:29:07,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 18:29:07,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 18:29:07,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847272148] [2022-04-27 18:29:07,107 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 18:29:07,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565678858] [2022-04-27 18:29:07,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565678858] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 18:29:07,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 18:29:07,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-27 18:29:07,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718788541] [2022-04-27 18:29:07,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 18:29:07,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-04-27 18:29:07,108 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 18:29:07,108 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:07,129 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:29:07,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-27 18:29:07,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 18:29:07,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-27 18:29:07,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-27 18:29:07,130 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:07,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:07,239 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2022-04-27 18:29:07,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-27 18:29:07,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-04-27 18:29:07,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 18:29:07,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:07,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2022-04-27 18:29:07,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:07,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2022-04-27 18:29:07,244 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 51 transitions. [2022-04-27 18:29:07,287 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:29:07,291 INFO L225 Difference]: With dead ends: 40 [2022-04-27 18:29:07,291 INFO L226 Difference]: Without dead ends: 40 [2022-04-27 18:29:07,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-27 18:29:07,294 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 6 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 18:29:07,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 139 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 18:29:07,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-04-27 18:29:07,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-04-27 18:29:07,304 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 18:29:07,304 INFO L82 GeneralOperation]: Start isEquivalent. First operand 40 states. Second operand has 40 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:07,305 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand has 40 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:07,305 INFO L87 Difference]: Start difference. First operand 40 states. Second operand has 40 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:07,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:07,308 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2022-04-27 18:29:07,309 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2022-04-27 18:29:07,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:29:07,309 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:29:07,309 INFO L74 IsIncluded]: Start isIncluded. First operand has 40 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 40 states. [2022-04-27 18:29:07,311 INFO L87 Difference]: Start difference. First operand has 40 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 40 states. [2022-04-27 18:29:07,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:07,315 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2022-04-27 18:29:07,315 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2022-04-27 18:29:07,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:29:07,315 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:29:07,315 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 18:29:07,315 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 18:29:07,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 18:29:07,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2022-04-27 18:29:07,317 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 29 [2022-04-27 18:29:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 18:29:07,318 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2022-04-27 18:29:07,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:07,318 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2022-04-27 18:29:07,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-27 18:29:07,318 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 18:29:07,318 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 18:29:07,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-27 18:29:07,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 18:29:07,540 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 18:29:07,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 18:29:07,541 INFO L85 PathProgramCache]: Analyzing trace with hash -358604865, now seen corresponding path program 1 times [2022-04-27 18:29:07,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 18:29:07,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474318815] [2022-04-27 18:29:07,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:29:07,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 18:29:07,566 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 18:29:07,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [463802197] [2022-04-27 18:29:07,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:29:07,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 18:29:07,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 18:29:07,568 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) [2022-04-27 18:29:07,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-27 18:29:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:07,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2022-04-27 18:29:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:29:07,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 18:29:07,757 INFO L272 TraceCheckUtils]: 0: Hoare triple {947#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {947#true} is VALID [2022-04-27 18:29:07,758 INFO L290 TraceCheckUtils]: 1: Hoare triple {947#true} [113] 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) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= v_~counter~0_7 0) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_7, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,759 INFO L290 TraceCheckUtils]: 2: Hoare triple {955#(<= 0 ~counter~0)} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,759 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {955#(<= 0 ~counter~0)} {947#true} [157] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,760 INFO L272 TraceCheckUtils]: 4: Hoare triple {955#(<= 0 ~counter~0)} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,761 INFO L290 TraceCheckUtils]: 5: Hoare triple {955#(<= 0 ~counter~0)} [115] mainENTRY-->L24: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~q~0=v_main_~q~0_3, main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1, main_~b~0=v_main_~b~0_3, main_~p~0=v_main_~p~0_3, main_~r~0=v_main_~r~0_3, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_~q~0, main_#t~nondet4, main_~x~0, main_~y~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,761 INFO L272 TraceCheckUtils]: 6: Hoare triple {955#(<= 0 ~counter~0)} [117] L24-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,762 INFO L290 TraceCheckUtils]: 7: Hoare triple {955#(<= 0 ~counter~0)} [119] assume_abort_if_notENTRY-->L8: 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] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,763 INFO L290 TraceCheckUtils]: 8: Hoare triple {955#(<= 0 ~counter~0)} [122] L8-->L8-2: 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[] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,763 INFO L290 TraceCheckUtils]: 9: Hoare triple {955#(<= 0 ~counter~0)} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,770 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {955#(<= 0 ~counter~0)} {955#(<= 0 ~counter~0)} [158] assume_abort_if_notEXIT-->L24-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (<= 1 v_main_~x~0_9) 1 0)) InVars {main_~x~0=v_main_~x~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~x~0, assume_abort_if_not_#in~cond] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,772 INFO L272 TraceCheckUtils]: 11: Hoare triple {955#(<= 0 ~counter~0)} [118] L24-1-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,772 INFO L290 TraceCheckUtils]: 12: Hoare triple {955#(<= 0 ~counter~0)} [119] assume_abort_if_notENTRY-->L8: 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] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,773 INFO L290 TraceCheckUtils]: 13: Hoare triple {955#(<= 0 ~counter~0)} [122] L8-->L8-2: 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[] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,773 INFO L290 TraceCheckUtils]: 14: Hoare triple {955#(<= 0 ~counter~0)} [125] L8-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,774 INFO L284 TraceCheckUtils]: 15: Hoare quadruple {955#(<= 0 ~counter~0)} {955#(<= 0 ~counter~0)} [159] assume_abort_if_notEXIT-->L25: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (<= 1 v_main_~y~0_9) 1 0)) InVars {main_~y~0=v_main_~y~0_9} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~y~0, assume_abort_if_not_#in~cond] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,774 INFO L290 TraceCheckUtils]: 16: Hoare triple {955#(<= 0 ~counter~0)} [120] L25-->L34-3: Formula: (and (= v_main_~b~0_4 v_main_~y~0_6) (= v_main_~q~0_5 0) (= v_main_~s~0_5 1) (= v_main_~p~0_5 1) (= v_main_~a~0_4 v_main_~x~0_6) (= v_main_~r~0_5 0)) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6} OutVars{main_~q~0=v_main_~q~0_5, main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6, main_~b~0=v_main_~b~0_4, main_~p~0=v_main_~p~0_5, main_~r~0=v_main_~r~0_5, main_~s~0=v_main_~s~0_5, main_~a~0=v_main_~a~0_4} AuxVars[] AssignedVars[main_~q~0, main_~b~0, main_~p~0, main_~r~0, main_~s~0, main_~a~0] {955#(<= 0 ~counter~0)} is VALID [2022-04-27 18:29:07,774 INFO L290 TraceCheckUtils]: 17: Hoare triple {955#(<= 0 ~counter~0)} [124] L34-3-->L34-1: Formula: (and (= |v_main_#t~post6_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post6_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post6] {1004#(<= 1 ~counter~0)} is VALID [2022-04-27 18:29:07,775 INFO L290 TraceCheckUtils]: 18: Hoare triple {1004#(<= 1 ~counter~0)} [128] L34-1-->L35: Formula: (< |v_main_#t~post6_5| 2) InVars {main_#t~post6=|v_main_#t~post6_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post6] {1004#(<= 1 ~counter~0)} is VALID [2022-04-27 18:29:07,775 INFO L290 TraceCheckUtils]: 19: Hoare triple {1004#(<= 1 ~counter~0)} [132] L35-->L41-3: Formula: (and (not (= v_main_~b~0_6 0)) (= v_main_~k~0_4 0) (= v_main_~a~0_5 v_main_~c~0_4)) InVars {main_~b~0=v_main_~b~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~c~0=v_main_~c~0_4, main_~b~0=v_main_~b~0_6, main_~k~0=v_main_~k~0_4, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~k~0, main_~c~0] {1004#(<= 1 ~counter~0)} is VALID [2022-04-27 18:29:07,775 INFO L290 TraceCheckUtils]: 20: Hoare triple {1004#(<= 1 ~counter~0)} [137] L41-3-->L41-1: Formula: (and (= |v_main_#t~post7_1| v_~counter~0_4) (= (+ |v_main_#t~post7_1| 1) v_~counter~0_3)) InVars {~counter~0=v_~counter~0_4} OutVars{~counter~0=v_~counter~0_3, main_#t~post7=|v_main_#t~post7_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {1014#(<= 2 ~counter~0)} is VALID [2022-04-27 18:29:07,776 INFO L290 TraceCheckUtils]: 21: Hoare triple {1014#(<= 2 ~counter~0)} [143] L41-1-->L42: Formula: (< |v_main_#t~post7_5| 2) InVars {main_#t~post7=|v_main_#t~post7_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {1014#(<= 2 ~counter~0)} is VALID [2022-04-27 18:29:07,776 INFO L290 TraceCheckUtils]: 22: Hoare triple {1014#(<= 2 ~counter~0)} [145] L42-->L48-3: Formula: (and (= v_main_~d~0_2 1) (<= v_main_~b~0_8 v_main_~c~0_7) (= v_main_~b~0_8 v_main_~v~0_2)) InVars {main_~b~0=v_main_~b~0_8, main_~c~0=v_main_~c~0_7} OutVars{main_~c~0=v_main_~c~0_7, main_~v~0=v_main_~v~0_2, main_~d~0=v_main_~d~0_2, main_~b~0=v_main_~b~0_8} AuxVars[] AssignedVars[main_~v~0, main_~d~0] {1014#(<= 2 ~counter~0)} is VALID [2022-04-27 18:29:07,776 INFO L290 TraceCheckUtils]: 23: Hoare triple {1014#(<= 2 ~counter~0)} [152] L48-3-->L48-1: Formula: (and (= (+ |v_main_#t~post8_1| 1) v_~counter~0_5) (= |v_main_#t~post8_1| v_~counter~0_6)) InVars {~counter~0=v_~counter~0_6} OutVars{main_#t~post8=|v_main_#t~post8_1|, ~counter~0=v_~counter~0_5} AuxVars[] AssignedVars[~counter~0, main_#t~post8] {1024#(<= 2 |main_#t~post8|)} is VALID [2022-04-27 18:29:07,777 INFO L290 TraceCheckUtils]: 24: Hoare triple {1024#(<= 2 |main_#t~post8|)} [155] L48-1-->L49: Formula: (< |v_main_#t~post8_5| 2) InVars {main_#t~post8=|v_main_#t~post8_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post8] {948#false} is VALID [2022-04-27 18:29:07,777 INFO L272 TraceCheckUtils]: 25: Hoare triple {948#false} [156] L49-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~a~0_8 (+ (* v_main_~x~0_10 v_main_~p~0_7) (* v_main_~y~0_10 v_main_~r~0_7))) 1 0)) InVars {main_~y~0=v_main_~y~0_10, main_~x~0=v_main_~x~0_10, main_~p~0=v_main_~p~0_7, main_~r~0=v_main_~r~0_7, main_~a~0=v_main_~a~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, main_~p~0, main_~r~0, main_~a~0] {948#false} is VALID [2022-04-27 18:29:07,777 INFO L290 TraceCheckUtils]: 26: Hoare triple {948#false} [130] __VERIFIER_assertENTRY-->L11: Formula: (= v___VERIFIER_assert_~cond_1 |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_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {948#false} is VALID [2022-04-27 18:29:07,777 INFO L290 TraceCheckUtils]: 27: Hoare triple {948#false} [134] L11-->L12: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {948#false} is VALID [2022-04-27 18:29:07,777 INFO L290 TraceCheckUtils]: 28: Hoare triple {948#false} [138] L12-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {948#false} is VALID [2022-04-27 18:29:07,777 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-27 18:29:07,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 18:29:07,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 18:29:07,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474318815] [2022-04-27 18:29:07,778 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 18:29:07,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463802197] [2022-04-27 18:29:07,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463802197] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 18:29:07,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 18:29:07,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-27 18:29:07,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129402728] [2022-04-27 18:29:07,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 18:29:07,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-04-27 18:29:07,781 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 18:29:07,781 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:07,797 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:29:07,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-27 18:29:07,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 18:29:07,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-27 18:29:07,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-27 18:29:07,797 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:07,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:07,895 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-04-27 18:29:07,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-27 18:29:07,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-04-27 18:29:07,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 18:29:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:07,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 39 transitions. [2022-04-27 18:29:07,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 39 transitions. [2022-04-27 18:29:07,897 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 39 transitions. [2022-04-27 18:29:07,923 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:29:07,924 INFO L225 Difference]: With dead ends: 35 [2022-04-27 18:29:07,924 INFO L226 Difference]: Without dead ends: 33 [2022-04-27 18:29:07,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-04-27 18:29:07,924 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 31 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 18:29:07,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 79 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 18:29:07,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-04-27 18:29:07,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-04-27 18:29:07,926 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 18:29:07,926 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand has 33 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 18:29:07,926 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand has 33 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 18:29:07,926 INFO L87 Difference]: Start difference. First operand 33 states. Second operand has 33 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 18:29:07,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:07,927 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-04-27 18:29:07,927 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-04-27 18:29:07,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:29:07,928 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:29:07,928 INFO L74 IsIncluded]: Start isIncluded. First operand has 33 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 33 states. [2022-04-27 18:29:07,928 INFO L87 Difference]: Start difference. First operand has 33 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 33 states. [2022-04-27 18:29:07,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:29:07,929 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-04-27 18:29:07,929 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-04-27 18:29:07,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:29:07,929 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:29:07,929 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 18:29:07,929 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 18:29:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 18:29:07,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-04-27 18:29:07,930 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 29 [2022-04-27 18:29:07,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 18:29:07,930 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-04-27 18:29:07,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 18:29:07,930 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-04-27 18:29:07,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-27 18:29:07,930 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 18:29:07,930 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 18:29:07,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-27 18:29:08,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 18:29:08,143 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 18:29:08,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 18:29:08,144 INFO L85 PathProgramCache]: Analyzing trace with hash -2061673945, now seen corresponding path program 1 times [2022-04-27 18:29:08,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 18:29:08,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467049605] [2022-04-27 18:29:08,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:29:08,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 18:29:08,159 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 18:29:08,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981644935] [2022-04-27 18:29:08,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:29:08,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 18:29:08,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 18:29:08,161 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) [2022-04-27 18:29:08,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-27 18:29:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 18:29:08,209 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-27 18:29:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 18:29:08,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-27 18:29:08,232 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-04-27 18:29:08,232 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 18:29:08,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-27 18:29:08,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 18:29:08,451 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-04-27 18:29:08,453 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 18:29:08,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 06:29:08 BasicIcfg [2022-04-27 18:29:08,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 18:29:08,484 INFO L158 Benchmark]: Toolchain (without parser) took 4279.15ms. Allocated memory was 189.8MB in the beginning and 230.7MB in the end (delta: 40.9MB). Free memory was 141.5MB in the beginning and 87.0MB in the end (delta: 54.6MB). Peak memory consumption was 96.9MB. Max. memory is 8.0GB. [2022-04-27 18:29:08,484 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory was 157.7MB in the beginning and 157.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 18:29:08,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.45ms. Allocated memory is still 189.8MB. Free memory was 141.4MB in the beginning and 166.1MB in the end (delta: -24.7MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. [2022-04-27 18:29:08,484 INFO L158 Benchmark]: Boogie Preprocessor took 20.76ms. Allocated memory is still 189.8MB. Free memory was 166.1MB in the beginning and 164.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 18:29:08,484 INFO L158 Benchmark]: RCFGBuilder took 388.66ms. Allocated memory is still 189.8MB. Free memory was 164.5MB in the beginning and 150.4MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-04-27 18:29:08,484 INFO L158 Benchmark]: IcfgTransformer took 43.13ms. Allocated memory is still 189.8MB. Free memory was 150.4MB in the beginning and 148.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 18:29:08,485 INFO L158 Benchmark]: TraceAbstraction took 3594.32ms. Allocated memory was 189.8MB in the beginning and 230.7MB in the end (delta: 40.9MB). Free memory was 147.7MB in the beginning and 87.0MB in the end (delta: 60.8MB). Peak memory consumption was 102.7MB. Max. memory is 8.0GB. [2022-04-27 18:29:08,486 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 189.8MB. Free memory was 157.7MB in the beginning and 157.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 228.45ms. Allocated memory is still 189.8MB. Free memory was 141.4MB in the beginning and 166.1MB in the end (delta: -24.7MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.76ms. Allocated memory is still 189.8MB. Free memory was 166.1MB in the beginning and 164.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 388.66ms. Allocated memory is still 189.8MB. Free memory was 164.5MB in the beginning and 150.4MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * IcfgTransformer took 43.13ms. Allocated memory is still 189.8MB. Free memory was 150.4MB in the beginning and 148.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 3594.32ms. Allocated memory was 189.8MB in the beginning and 230.7MB in the end (delta: 40.9MB). Free memory was 147.7MB in the beginning and 87.0MB in the end (delta: 60.8MB). Peak memory consumption was 102.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L18] int counter = 0; VAL [\old(counter)=6, counter=0] [L20] int x, y; [L21] long long a, b, p, q, r, s; [L22] x = __VERIFIER_nondet_int() [L23] y = __VERIFIER_nondet_int() [L24] CALL assume_abort_if_not(x >= 1) VAL [\old(cond)=1, \old(counter)=0, counter=0] [L8] COND FALSE !(!cond) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=0] [L24] RET assume_abort_if_not(x >= 1) VAL [\old(counter)=0, counter=0, x=1, y=4] [L25] CALL assume_abort_if_not(y >= 1) VAL [\old(cond)=1, \old(counter)=0, counter=0] [L8] COND FALSE !(!cond) VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=0] [L25] RET assume_abort_if_not(y >= 1) VAL [\old(counter)=0, counter=0, x=1, y=4] [L27] a = x [L28] b = y [L29] p = 1 [L30] q = 0 [L31] r = 0 [L32] s = 1 VAL [\old(counter)=0, a=1, b=4, counter=0, p=1, q=0, r=0, s=1, x=1, y=4] [L34] EXPR counter++ VAL [\old(counter)=0, a=1, b=4, counter=1, counter++=0, p=1, q=0, r=0, s=1, x=1, y=4] [L34] COND TRUE counter++<2 [L35] COND FALSE !(!(b != 0)) [L37] long long c, k; [L38] c = a [L39] k = 0 VAL [\old(counter)=0, a=1, b=4, c=1, counter=1, k=0, p=1, q=0, r=0, s=1, x=1, y=4] [L41] EXPR counter++ VAL [\old(counter)=0, a=1, b=4, c=1, counter=2, counter++=1, k=0, p=1, q=0, r=0, s=1, x=1, y=4] [L41] COND TRUE counter++<2 [L42] COND TRUE !(c >= b) VAL [\old(counter)=0, a=1, b=4, c=1, counter=2, k=0, p=1, q=0, r=0, s=1, x=1, y=4] [L63] a = b [L64] b = c [L65] long long temp; [L66] temp = p [L67] p = q [L68] q = temp - q * k [L69] temp = r [L70] r = s [L71] s = temp - s * k VAL [\old(counter)=0, a=4, b=1, c=1, counter=2, k=0, p=0, q=1, r=1, s=0, temp=0, x=1, y=4] [L34] EXPR counter++ VAL [\old(counter)=0, a=4, b=1, c=1, counter=3, counter++=2, k=0, p=0, q=1, r=1, s=0, temp=0, x=1, y=4] [L34] COND FALSE !(counter++<2) [L73] CALL __VERIFIER_assert(p*x - q*x + r*y - s*y == a) VAL [\old(cond)=0, \old(counter)=0, counter=3] [L11] COND TRUE !(cond) VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=3] [L13] reach_error() VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 530 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 325 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 205 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 267 SizeOfPredicates, 8 NumberOfNonLiveVariables, 447 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 22/22 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-27 18:29:08,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...