/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/freire2_unwindbound50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 18:44:03,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 18:44:03,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 18:44:03,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 18:44:03,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 18:44:03,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 18:44:03,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 18:44:03,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 18:44:03,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 18:44:03,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 18:44:03,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 18:44:03,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 18:44:03,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 18:44:03,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 18:44:03,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 18:44:03,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 18:44:03,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 18:44:03,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 18:44:03,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 18:44:03,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 18:44:03,728 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 18:44:03,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 18:44:03,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 18:44:03,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 18:44:03,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 18:44:03,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-27 18:44:03,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-27 18:44:03,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-27 18:44:03,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-27 18:44:03,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-27 18:44:03,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-27 18:44:03,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-27 18:44:03,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-27 18:44:03,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-27 18:44:03,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 18:44:03,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 18:44:03,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 18:44:03,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-27 18:44:03,771 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 18:44:03,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 18:44:03,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 18:44:03,774 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-27 18:44:03,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 18:44:03,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-27 18:44:03,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 18:44:03,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 18:44:03,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 18:44:03,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 18:44:03,775 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-27 18:44:03,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 18:44:03,776 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 18:44:03,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 18:44:03,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 18:44:03,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 18:44:03,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-27 18:44:03,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 18:44:03,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 18:44:03,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 18:44:03,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 18:44:03,778 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-27 18:44:03,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 18:44:04,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 18:44:04,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 18:44:04,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 18:44:04,047 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 18:44:04,047 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 18:44:04,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/freire2_unwindbound50.c [2022-04-27 18:44:04,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b66088a75/6724fea98517414cada3cc8d925bdb13/FLAG4f0ea0972 [2022-04-27 18:44:04,526 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 18:44:04,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_unwindbound50.c [2022-04-27 18:44:04,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b66088a75/6724fea98517414cada3cc8d925bdb13/FLAG4f0ea0972 [2022-04-27 18:44:04,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b66088a75/6724fea98517414cada3cc8d925bdb13 [2022-04-27 18:44:04,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 18:44:04,547 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-27 18:44:04,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 18:44:04,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 18:44:04,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 18:44:04,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 06:44:04" (1/1) ... [2022-04-27 18:44:04,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28347f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:44:04, skipping insertion in model container [2022-04-27 18:44:04,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 06:44:04" (1/1) ... [2022-04-27 18:44:04,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 18:44:04,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 18:44:04,754 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/freire2_unwindbound50.c[709,722] [2022-04-27 18:44:04,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 18:44:04,805 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 18:44:04,817 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/freire2_unwindbound50.c[709,722] [2022-04-27 18:44:04,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 18:44:04,850 INFO L208 MainTranslator]: Completed translation [2022-04-27 18:44:04,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:44:04 WrapperNode [2022-04-27 18:44:04,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 18:44:04,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 18:44:04,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 18:44:04,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 18:44:04,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:44:04" (1/1) ... [2022-04-27 18:44:04,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:44:04" (1/1) ... [2022-04-27 18:44:04,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:44:04" (1/1) ... [2022-04-27 18:44:04,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:44:04" (1/1) ... [2022-04-27 18:44:04,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:44:04" (1/1) ... [2022-04-27 18:44:04,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:44:04" (1/1) ... [2022-04-27 18:44:04,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:44:04" (1/1) ... [2022-04-27 18:44:04,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 18:44:04,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 18:44:04,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 18:44:04,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 18:44:04,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:44:04" (1/1) ... [2022-04-27 18:44:04,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 18:44:04,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 18:44:04,928 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 18:44:04,955 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 18:44:04,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 18:44:04,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 18:44:04,968 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 18:44:04,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-27 18:44:04,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 18:44:04,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 18:44:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 18:44:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 18:44:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 18:44:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 18:44:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-04-27 18:44:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-27 18:44:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 18:44:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 18:44:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 18:44:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 18:44:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 18:44:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 18:44:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 18:44:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 18:44:05,032 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 18:44:05,034 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 18:44:05,225 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 18:44:05,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 18:44:05,230 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-27 18:44:05,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 06:44:05 BoogieIcfgContainer [2022-04-27 18:44:05,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 18:44:05,232 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-27 18:44:05,232 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-27 18:44:05,249 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-27 18:44:05,252 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 06:44:05" (1/1) ... [2022-04-27 18:44:05,253 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-27 18:44:05,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 06:44:05 BasicIcfg [2022-04-27 18:44:05,281 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-27 18:44:05,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 18:44:05,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 18:44:05,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 18:44:05,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 06:44:04" (1/4) ... [2022-04-27 18:44:05,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3693651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 06:44:05, skipping insertion in model container [2022-04-27 18:44:05,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 06:44:04" (2/4) ... [2022-04-27 18:44:05,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3693651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 06:44:05, skipping insertion in model container [2022-04-27 18:44:05,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 06:44:05" (3/4) ... [2022-04-27 18:44:05,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3693651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 06:44:05, skipping insertion in model container [2022-04-27 18:44:05,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 06:44:05" (4/4) ... [2022-04-27 18:44:05,286 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_unwindbound50.cJordan [2022-04-27 18:44:05,299 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-27 18:44:05,300 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 18:44:05,350 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 18:44:05,357 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@32bf5175, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@e63000b [2022-04-27 18:44:05,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 18:44:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-27 18:44:05,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-27 18:44:05,369 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 18:44:05,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 18:44:05,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 18:44:05,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 18:44:05,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1238828824, now seen corresponding path program 1 times [2022-04-27 18:44:05,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 18:44:05,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854658745] [2022-04-27 18:44:05,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:44:05,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 18:44:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:44:05,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 18:44:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:44:05,554 INFO L290 TraceCheckUtils]: 0: Hoare triple {34#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {29#true} is VALID [2022-04-27 18:44:05,555 INFO L290 TraceCheckUtils]: 1: Hoare triple {29#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {29#true} is VALID [2022-04-27 18:44:05,555 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {29#true} {29#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {29#true} is VALID [2022-04-27 18:44:05,561 INFO L272 TraceCheckUtils]: 0: Hoare triple {29#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {34#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 18:44:05,562 INFO L290 TraceCheckUtils]: 1: Hoare triple {34#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {29#true} is VALID [2022-04-27 18:44:05,562 INFO L290 TraceCheckUtils]: 2: Hoare triple {29#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {29#true} is VALID [2022-04-27 18:44:05,562 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {29#true} {29#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {29#true} is VALID [2022-04-27 18:44:05,563 INFO L272 TraceCheckUtils]: 4: Hoare triple {29#true} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {29#true} is VALID [2022-04-27 18:44:05,563 INFO L290 TraceCheckUtils]: 5: Hoare triple {29#true} [73] mainENTRY-->L33-3: Formula: (and (= v_main_~a~0_1 v_main_~x~0_1) (= v_main_~a~0_1 |v_main_#t~nondet4_2|) (= v_main_~r~0_3 1) (= v_main_~s~0_1 (/ 13.0 4.0))) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~x~0=v_main_~x~0_1, main_~r~0=v_main_~r~0_3, main_~s~0=v_main_~s~0_1, main_~a~0=v_main_~a~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~r~0, main_~s~0, main_~a~0] {29#true} is VALID [2022-04-27 18:44:05,565 INFO L290 TraceCheckUtils]: 6: Hoare triple {29#true} [75] L33-3-->L33-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {30#false} is VALID [2022-04-27 18:44:05,565 INFO L272 TraceCheckUtils]: 7: Hoare triple {30#false} [77] L33-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_~convertDOUBLEToINT_13 (* (- 1) (* v_main_~r~0_12 (* v_main_~r~0_12 12)))) 1) 1 0) |v___VERIFIER_assert_#in~condInParam_4|) InVars {main_~r~0=v_main_~r~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_4|} AuxVars[v_~convertDOUBLEToINT_13] AssignedVars[__VERIFIER_assert_#in~cond, main_~r~0] {30#false} is VALID [2022-04-27 18:44:05,566 INFO L290 TraceCheckUtils]: 8: Hoare triple {30#false} [81] __VERIFIER_assertENTRY-->L17: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {30#false} is VALID [2022-04-27 18:44:05,566 INFO L290 TraceCheckUtils]: 9: Hoare triple {30#false} [84] L17-->L18: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {30#false} is VALID [2022-04-27 18:44:05,566 INFO L290 TraceCheckUtils]: 10: Hoare triple {30#false} [88] L18-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {30#false} is VALID [2022-04-27 18:44:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 18:44:05,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 18:44:05,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854658745] [2022-04-27 18:44:05,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854658745] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 18:44:05,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 18:44:05,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-27 18:44:05,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250723189] [2022-04-27 18:44:05,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 18:44:05,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-27 18:44:05,575 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 18:44:05,578 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 18:44:05,597 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:44:05,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-27 18:44:05,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 18:44:05,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-27 18:44:05,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 18:44:05,616 INFO L87 Difference]: Start difference. First operand has 26 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 18:44:05,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:44:05,778 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2022-04-27 18:44:05,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-27 18:44:05,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-27 18:44:05,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 18:44:05,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 18:44:05,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-04-27 18:44:05,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 18:44:05,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-04-27 18:44:05,800 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 36 transitions. [2022-04-27 18:44:05,856 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:44:05,865 INFO L225 Difference]: With dead ends: 27 [2022-04-27 18:44:05,866 INFO L226 Difference]: Without dead ends: 22 [2022-04-27 18:44:05,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 18:44:05,872 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 35 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 18:44:05,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 35 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 18:44:05,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-04-27 18:44:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2022-04-27 18:44:05,902 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 18:44:05,904 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 18:44:05,904 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 18:44:05,905 INFO L87 Difference]: Start difference. First operand 22 states. Second operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 18:44:05,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:44:05,915 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2022-04-27 18:44:05,915 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2022-04-27 18:44:05,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:44:05,916 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:44:05,917 INFO L74 IsIncluded]: Start isIncluded. First operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 22 states. [2022-04-27 18:44:05,918 INFO L87 Difference]: Start difference. First operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 22 states. [2022-04-27 18:44:05,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:44:05,923 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2022-04-27 18:44:05,924 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2022-04-27 18:44:05,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:44:05,925 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:44:05,925 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 18:44:05,925 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 18:44:05,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 18:44:05,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2022-04-27 18:44:05,929 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 11 [2022-04-27 18:44:05,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 18:44:05,929 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2022-04-27 18:44:05,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 18:44:05,930 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-04-27 18:44:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-27 18:44:05,931 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 18:44:05,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 18:44:05,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 18:44:05,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 18:44:05,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 18:44:05,940 INFO L85 PathProgramCache]: Analyzing trace with hash -221581531, now seen corresponding path program 1 times [2022-04-27 18:44:05,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 18:44:05,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830775367] [2022-04-27 18:44:05,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:44:05,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 18:44:05,961 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 18:44:05,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1823881951] [2022-04-27 18:44:05,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:44:05,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 18:44:05,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 18:44:05,964 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 18:44:05,965 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 18:44:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:44:06,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-27 18:44:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 18:44:06,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 18:44:06,150 INFO L272 TraceCheckUtils]: 0: Hoare triple {129#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {129#true} is VALID [2022-04-27 18:44:06,151 INFO L290 TraceCheckUtils]: 1: Hoare triple {129#true} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~counter~0, #NULL.offset, #NULL.base] {137#(<= ~counter~0 0)} is VALID [2022-04-27 18:44:06,152 INFO L290 TraceCheckUtils]: 2: Hoare triple {137#(<= ~counter~0 0)} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {137#(<= ~counter~0 0)} is VALID [2022-04-27 18:44:06,152 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {137#(<= ~counter~0 0)} {129#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {137#(<= ~counter~0 0)} is VALID [2022-04-27 18:44:06,153 INFO L272 TraceCheckUtils]: 4: Hoare triple {137#(<= ~counter~0 0)} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {137#(<= ~counter~0 0)} is VALID [2022-04-27 18:44:06,153 INFO L290 TraceCheckUtils]: 5: Hoare triple {137#(<= ~counter~0 0)} [73] mainENTRY-->L33-3: Formula: (and (= v_main_~a~0_1 v_main_~x~0_1) (= v_main_~a~0_1 |v_main_#t~nondet4_2|) (= v_main_~r~0_3 1) (= v_main_~s~0_1 (/ 13.0 4.0))) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~x~0=v_main_~x~0_1, main_~r~0=v_main_~r~0_3, main_~s~0=v_main_~s~0_1, main_~a~0=v_main_~a~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~r~0, main_~s~0, main_~a~0] {137#(<= ~counter~0 0)} is VALID [2022-04-27 18:44:06,154 INFO L290 TraceCheckUtils]: 6: Hoare triple {137#(<= ~counter~0 0)} [76] L33-3-->L33-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {153#(<= |main_#t~post5| 0)} is VALID [2022-04-27 18:44:06,155 INFO L290 TraceCheckUtils]: 7: Hoare triple {153#(<= |main_#t~post5| 0)} [78] L33-1-->L33-4: Formula: (not (< |v_main_#t~post5_3| 50)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {130#false} is VALID [2022-04-27 18:44:06,155 INFO L272 TraceCheckUtils]: 8: Hoare triple {130#false} [77] L33-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ v_~convertDOUBLEToINT_13 (* (- 1) (* v_main_~r~0_12 (* v_main_~r~0_12 12)))) 1) 1 0) |v___VERIFIER_assert_#in~condInParam_4|) InVars {main_~r~0=v_main_~r~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_4|} AuxVars[v_~convertDOUBLEToINT_13] AssignedVars[__VERIFIER_assert_#in~cond, main_~r~0] {130#false} is VALID [2022-04-27 18:44:06,155 INFO L290 TraceCheckUtils]: 9: Hoare triple {130#false} [81] __VERIFIER_assertENTRY-->L17: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {130#false} is VALID [2022-04-27 18:44:06,155 INFO L290 TraceCheckUtils]: 10: Hoare triple {130#false} [84] L17-->L18: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {130#false} is VALID [2022-04-27 18:44:06,156 INFO L290 TraceCheckUtils]: 11: Hoare triple {130#false} [88] L18-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {130#false} is VALID [2022-04-27 18:44:06,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 18:44:06,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 18:44:06,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 18:44:06,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830775367] [2022-04-27 18:44:06,157 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 18:44:06,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823881951] [2022-04-27 18:44:06,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823881951] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 18:44:06,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 18:44:06,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-27 18:44:06,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910621175] [2022-04-27 18:44:06,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 18:44:06,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-27 18:44:06,163 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 18:44:06,163 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 18:44:06,175 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:44:06,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-27 18:44:06,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 18:44:06,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-27 18:44:06,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-27 18:44:06,177 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 18:44:06,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:44:06,241 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2022-04-27 18:44:06,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-27 18:44:06,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-27 18:44:06,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 18:44:06,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 18:44:06,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2022-04-27 18:44:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 18:44:06,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2022-04-27 18:44:06,256 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 30 transitions. [2022-04-27 18:44:06,284 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 18:44:06,286 INFO L225 Difference]: With dead ends: 23 [2022-04-27 18:44:06,286 INFO L226 Difference]: Without dead ends: 23 [2022-04-27 18:44:06,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 18:44:06,288 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 18:44:06,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 18:44:06,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-04-27 18:44:06,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-04-27 18:44:06,293 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 18:44:06,293 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 18:44:06,294 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 18:44:06,294 INFO L87 Difference]: Start difference. First operand 23 states. Second operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 18:44:06,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:44:06,299 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2022-04-27 18:44:06,299 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-04-27 18:44:06,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:44:06,299 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:44:06,300 INFO L74 IsIncluded]: Start isIncluded. First operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 23 states. [2022-04-27 18:44:06,301 INFO L87 Difference]: Start difference. First operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 23 states. [2022-04-27 18:44:06,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 18:44:06,304 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2022-04-27 18:44:06,304 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-04-27 18:44:06,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 18:44:06,306 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 18:44:06,306 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 18:44:06,306 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 18:44:06,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 18:44:06,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2022-04-27 18:44:06,309 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 12 [2022-04-27 18:44:06,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 18:44:06,309 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2022-04-27 18:44:06,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 18:44:06,310 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-04-27 18:44:06,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-27 18:44:06,310 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 18:44:06,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 18:44:06,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-27 18:44:06,515 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 18:44:06,516 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 18:44:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 18:44:06,516 INFO L85 PathProgramCache]: Analyzing trace with hash -220509055, now seen corresponding path program 1 times [2022-04-27 18:44:06,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 18:44:06,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849983320] [2022-04-27 18:44:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:44:06,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 18:44:06,529 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 18:44:06,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963974250] [2022-04-27 18:44:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 18:44:06,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 18:44:06,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 18:44:06,531 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 18:44:06,537 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 18:44:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 18:44:06,575 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-27 18:44:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 18:44:06,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-27 18:44:06,600 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-04-27 18:44:06,601 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 18:44:06,626 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 18:44:06,803 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 18:44:06,806 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-27 18:44:06,808 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 18:44:06,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 06:44:06 BasicIcfg [2022-04-27 18:44:06,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 18:44:06,828 INFO L158 Benchmark]: Toolchain (without parser) took 2280.33ms. Allocated memory is still 179.3MB. Free memory was 129.6MB in the beginning and 75.3MB in the end (delta: 54.3MB). Peak memory consumption was 52.8MB. Max. memory is 8.0GB. [2022-04-27 18:44:06,833 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 179.3MB. Free memory was 146.1MB in the beginning and 146.1MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 18:44:06,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.96ms. Allocated memory is still 179.3MB. Free memory was 129.5MB in the beginning and 154.6MB in the end (delta: -25.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-04-27 18:44:06,838 INFO L158 Benchmark]: Boogie Preprocessor took 44.56ms. Allocated memory is still 179.3MB. Free memory was 154.6MB in the beginning and 153.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 18:44:06,838 INFO L158 Benchmark]: RCFGBuilder took 334.25ms. Allocated memory is still 179.3MB. Free memory was 153.0MB in the beginning and 142.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-27 18:44:06,839 INFO L158 Benchmark]: IcfgTransformer took 48.49ms. Allocated memory is still 179.3MB. Free memory was 141.5MB in the beginning and 140.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-27 18:44:06,839 INFO L158 Benchmark]: TraceAbstraction took 1545.09ms. Allocated memory is still 179.3MB. Free memory was 139.9MB in the beginning and 75.3MB in the end (delta: 64.6MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. [2022-04-27 18:44:06,840 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 0.09ms. Allocated memory is still 179.3MB. Free memory was 146.1MB in the beginning and 146.1MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 302.96ms. Allocated memory is still 179.3MB. Free memory was 129.5MB in the beginning and 154.6MB in the end (delta: -25.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.56ms. Allocated memory is still 179.3MB. Free memory was 154.6MB in the beginning and 153.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 334.25ms. Allocated memory is still 179.3MB. Free memory was 153.0MB in the beginning and 142.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 48.49ms. Allocated memory is still 179.3MB. Free memory was 141.5MB in the beginning and 140.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1545.09ms. Allocated memory is still 179.3MB. Free memory was 139.9MB in the beginning and 75.3MB in the end (delta: 64.6MB). Peak memory consumption was 65.0MB. 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 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 34. Possible FailurePath: [L24] int counter = 0; VAL [\old(counter)=6, counter=0] [L26] int r; [L27] double a, x, s; [L28] a = __VERIFIER_nondet_double() [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [\old(counter)=0, a=2, counter=0, r=1, s=13/4, x=2] [L33] EXPR counter++ VAL [\old(counter)=0, a=2, counter=1, counter++=0, r=1, s=13/4, x=2] [L33] COND TRUE counter++<50 [L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1) VAL [\old(cond)=0, \old(counter)=0, counter=1] [L17] COND TRUE !(cond) VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=1] [L19] reach_error() VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 56 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 1 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces [2022-04-27 18:44:06,874 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...